The following management's discussion and analysis (MD&A) is intended to assist
the reader in understanding Amgen's business. MD&A is provided as a supplement
to, and should be read in conjunction with, our consolidated financial
statements and accompanying notes. Our results of operations discussed in MD&A
are presented in conformity with U.S. generally accepted accounting principles
(GAAP). Amgen operates in one business segment: human therapeutics. Therefore,
our results of operations are discussed on a consolidated basis.
Forward-looking statements
This report and other documents we file with the SEC contain forward-looking
statements that are based on current expectations, estimates, forecasts and
projections about us, our future performance, our business, our beliefs and our
management's assumptions. In addition, we, or others on our behalf, may make
forward-looking statements in press releases, written statements or our
communications and discussions with investors and analysts in the normal course
of business through meetings, webcasts, phone calls and conference calls. Such
words as "expect," "anticipate," "outlook," "could," "target," "project,"
"intend," "plan," "believe," "seek," "estimate," "should," "may," "assume" and
"continue" as well as variations of such words and similar expressions are
intended to identify such forward-looking statements. These statements are not
guarantees of future performance and they involve certain risks, uncertainties
and assumptions that are difficult to predict. We describe our respective risks,
uncertainties and assumptions that could affect the outcome or results of
operations in Part I, Item 1A. Risk Factors. We have based our forward-looking
statements on our management's beliefs and assumptions based on information
available to our management at the time the statements are made. We caution you
that actual outcomes and results may differ materially from what is expressed,
implied or forecasted by our forward-looking statements. Reference is made in
particular to forward-looking statements regarding product sales, regulatory
activities, clinical trial results, reimbursement, expenses, earnings per share
(EPS), liquidity and capital resources, trends, planned dividends, stock
repurchases and restructuring plans. Except as required under the federal
securities laws and the rules and regulations of the SEC, we do not have any
intention or obligation to update publicly any forward-looking statements after
the distribution of this report, whether as a result of new information, future
events, changes in assumptions or otherwise.

                                       45
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Overview

Amgen is a biotechnology company committed to unlocking the potential of biology
for patients suffering from serious illnesses. A biotechnology pioneer since
1980, Amgen has grown to be one of the world's leading independent biotechnology
companies, has reached millions of patients around the world and is developing a
pipeline of medicines with breakaway potential. In 2020, we celebrate our 40th
anniversary, continuing our history of focusing on innovative medicines that
have the potential to be first-in-class molecules and that have a large-effect
size on serious diseases.
Our principal products-those with the most significant annual commercial
sales-are ENBREL, Neulasta®, Prolia®, XGEVA®, Aranesp®, KYPROLIS®, EPOGEN® and
our recently acquired product Otezla®. We also market a number of other
products, including Nplate®, Vectibix®, Repatha®, Parsabiv®, Sensipar®/Mimpara®,
BLINCYTO®, Aimovig®, NEUPOGEN®, KANJINTITM, AMGEVITATM, EVENITY®, MVASITM,
IMLYGIC® and Corlanor®. For additional information about our products, see Part
I, Item 1. Business-Marketing, Distribution and Selected Marketed Products.
Our strategy includes integrated activities intended to maintain and strengthen
our competitive position in the industry. We focus on six commercial areas:
inflammation, oncology/hematology, bone health, cardiovascular disease,
nephrology and neuroscience and conduct discovery research primarily in three
therapeutic areas: inflammation, oncology/hematology and
cardiovascular/metabolic diseases. In 2019, we advanced our innovative pipeline,
launched branded biosimilar programs, built our global geographic reach and
expanded our next generation manufacturing capabilities, while returning capital
to shareholders.
During the year we delivered strong financial results while facing competition
from biosimilars and generics. Total product sales decreased 1% as lower net
selling prices were offset partially by volume growth. Product sales decreased
5% in the United States and grew 11% in the rest of the world. Total operating
expenses increased 2% as we invested in our innovative R&D pipeline, including
our early oncology assets.
We continued to advance our pipeline, including AMG 510, which was granted fast
track designation from the FDA for the treatment of patients with previously
treated metastatic NSCLC with KRAS G12C mutation. We launched EVENITY® in the
United States and Japan, and it was granted marketing authorization in Europe;
and the United States label for KYPROLIS® was expanded. We also continued to
advance our biosimilar program with the launches of KANJINTITM and MVASITM in
the United States and the approval of AVSOLATM for all approved indications of
the reference product REMICADE® (infliximab) in the United States. Lastly, we
made a regulatory submission for ABP 798 in the United States.
We have also continued to invest in external opportunities to augment our
internal programs and products. We completed our acquisition of worldwide rights
to Otezla®, the only oral, non-biologic treatment for psoriasis and psoriatic
arthritis. We strengthened our international footprint with the announcement of
a strategic collaboration with BeiGene to expand our oncology presence in China.
In addition, we expanded our human genetics capabilities, by entering into a
collaboration with a regional healthcare system in the United States and joining
a consortium to perform whole genome sequencing of approximately 500,000
participants from the United Kingdom. Our human genetics capabilities allow us
to identify new development targets in our chosen areas of therapeutic focus.
Cash flows from operating activities were $9.2 billion, enabling us to invest in
our business while returning capital to shareholders through the payment of cash
dividends and stock repurchases. For 2019, we increased our quarterly cash
dividend by 10% to $1.45 per share of common stock. In December 2019, we
declared a cash dividend of $1.60 per share of common stock for the first
quarter of 2020, an increase of 10% for this period, to be paid in March 2020.
We also repurchased 40.2 million shares of our common stock throughout 2019 at
an aggregate cost of $7.6 billion.
Our long-term success depends, to a great extent, on our ability to continue to
discover, develop and commercialize innovative products and acquire or
collaborate on therapies currently in development by other companies. We must
develop new products to achieve revenue growth and to offset revenue losses when
products lose their exclusivity or when competing products are launched. Certain
of our products face increasing pressure from competition, including biosimilars
and generics. For additional information, including information on the
expirations of patents for various products, see Part I, Item 1.
Business-Marketing, Distribution and Selected Marketed Products-Patents, and
Part I, Item 1. Business-Marketing, Distribution and Selected Marketed
Products-Competition. We devote considerable resources to R&D activities, but
successful product development in the biotechnology industry is highly uncertain
and we also are facing increasing regulatory scrutiny of safety and efficacy
both before and after products launch.
Rising healthcare costs and economic conditions also continue to pose challenges
to our business, including continued pressure by third-party payers, such as
governments and private payers, to reduce healthcare expenditures. As a result
of public and private healthcare-provider focus, the industry continues to
experience significant pricing pressures and other cost containment measures.
Finally, wholesale and end-user buying patterns can affect our product sales.
These effects can cause fluctuations in quarterly product sales and have
generally not been significant when comparing full-year product performance to
the prior year.

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See Part I, Item 1. Business-Marketing, Distribution and Selected Marketed
Products and Part I, Item 1A. Risk Factors for further discussion of certain of
the factors that could impact our future product sales.
Selected Financial Information
The following is an overview of our results of operations (in millions, except
percentages and per-share data):
                                                Year ended                          Year ended
                                               December 31,                        December 31,
                                                   2019             Change             2018
Product sales:
U.S.                                         $       16,531             (5 )%    $       17,429
Rest of world (ROW)                                   5,673             11  %             5,104
Total product sales                                  22,204             (1 )%            22,533
Other revenues                                        1,158             (5 )%             1,214
Total revenues                               $       23,362             (2 )%    $       23,747
Operating expenses                           $       13,688              2  %    $       13,484
Operating income                             $        9,674             (6 )%    $       10,263
Net income                                   $        7,842             (7 )%    $        8,394
Diluted EPS                                  $        12.88              2  %    $        12.62
Diluted shares                                          609             (8 )%               665


In the following discussion of changes in product sales, any reference to unit
demand growth or decline refers to changes in the purchases of our products by
healthcare providers such as physicians or their clinics, dialysis centers,
hospitals and pharmacies. In addition, any reference to increases or decreases
in inventory refers to changes in inventory held at wholesaler customers and end
users such as pharmacies.
Total product sales decreased for 2019, driven primarily by a decline in net
selling price, offset partially by higher unit demand. For 2020, we expect net
selling price to continue to decline.
Other revenues decreased for 2019, driven primarily by lower milestone payments,
offset partially by higher royalties.
Operating expenses increased for 2019, driven primarily by higher spending in
research and early pipeline in support of our oncology programs, offset
partially by an impairment charge associated with an IPR&D asset in 2018.
Although changes in foreign currency exchange rates result in increases or
decreases in our reported international product sales, the benefit or detriment
that such movements have on our international product sales is offset partially
by corresponding increases or decreases in our international operating expenses
and our related foreign currency hedging activities. Our hedging activities seek
to offset the impacts, both positive and negative, that foreign currency
exchange rate changes may have on our net income by hedging our net foreign
currency exposure, primarily with respect to product sales denominated in euros.
The net impact from changes in foreign currency exchange rates was not material
in 2019, 2018 or 2017.

                                       47
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Results of Operations
Product sales
Worldwide product sales were as follows (dollar amounts in millions):
                               Year ended                      Year ended                       Year ended
                              December 31,                    December 31,                     December 31,
                                  2019           Change           2018            Change           2017
ENBREL                       $       5,226            4  %   $       5,014           (8 )%    $       5,433
Neulasta®                            3,221          (28 )%           4,475           (1 )%            4,534
Prolia®                              2,672           17  %           2,291           16  %            1,968
XGEVA®                               1,935            8  %           1,786           13  %            1,575
Aranesp®                             1,729           (8 )%           1,877           (9 )%            2,053
KYPROLIS®                            1,044            8  %             968           16  %              835
EPOGEN®                                867          (14 )%           1,010           (8 )%            1,096
Sensipar®/Mimpara®                     551          (69 )%           1,774            3  %            1,718
Other products                       4,959           49  %           3,338           29  %            2,583
Total product sales          $      22,204           (1 )%   $      22,533            3  %    $      21,795
Total U.S.                   $      16,531           (5 )%   $      17,429            2  %    $      17,131
Total ROW                            5,673           11  %           5,104            9  %            4,664
Total product sales          $      22,204           (1 )%   $      22,533            3  %    $      21,795


Future sales of our products will depend in part on the factors discussed in the
Overview, Part I, Item 1. Business-Marketing, Distribution and Selected Marketed
Products-Competition, in Part I, Item 1A. Risk Factors, and any additional
factors discussed in the individual product sections below. In addition, for a
list of our products' significant competitors, see Part I, Item 1.
Business-Marketing, Distribution and Selected Marketed Products-Competition.
ENBREL
Total ENBREL sales by geographic region were as follows (dollar amounts in
millions):
                                Year ended                       Year ended                        Year ended
                               December 31,                     December 31,                      December 31,
                                   2019           Change            2018            Change            2017
ENBREL - U.S.                $        5,050            5  %   $        4,807           (8 )%    $        5,206
ENBREL - Canada                         176          (15 )%              207           (9 )%               227
Total ENBREL                 $        5,226            4  %   $        5,014           (8 )%    $        5,433


The increase in ENBREL sales for 2019 was driven primarily by favorable impacts
from changes in accounting estimates of sales deductions and an increase in net
selling price, offset partially by lower unit demand. For 2020, we expect the
trend of lower unit demand to continue.
The decrease in ENBREL sales for 2018 was driven primarily by lower unit demand
and net selling price.
In April 2019, the FDA approved a second biosimilar version of ENBREL, and we
are involved in patent litigations with the two companies seeking to market
their FDA-approved biosimilar versions of ENBREL. See Part IV-Note 19,
Contingencies and commitments, to the Consolidated Financial Statements. Other
companies are also developing proposed biosimilar versions of ENBREL. Companies
with approved biosimilar versions of ENBREL may seek to enter the U.S. market if
we are not successful in our litigations, or even earlier.

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Neulasta®


Total Neulasta® sales by geographic region were as follows (dollar amounts in
millions):
                                Year ended                       Year ended                        Year ended
                               December 31,                     December 31,                      December 31,
                                   2019           Change            2018            Change            2017
Neulasta® - U.S.             $        2,814          (27 )%   $        3,866           (2 )%    $        3,931
Neulasta® - ROW                         407          (33 )%              609            1  %               603
Total Neulasta®              $        3,221          (28 )%   $        4,475           (1 )%    $        4,534


The decrease in global Neulasta® sales for 2019 was driven by the impact of
biosimilar competition on net selling price and unit demand. Neulasta® sales for
2019 included a $98 million order in the first quarter from the U.S. government.
The decrease in global Neulasta® sales for 2018 was driven primarily by
favorable changes in accounting estimates of product returns in 2017, offset
partially by favorable changes in inventory. Neulasta® sales for 2018 included a
$55 million order in the fourth quarter from the U.S. government.
Biosimilar versions of Neulasta® have been approved and launched, and other
biosimilar versions may also receive approval in the near future. Therefore, we
face increased competition in the United States and Europe, which has had and
will continue to have a material adverse impact on sales of Neulasta®. For a
discussion of ongoing patent litigations related to these and other biosimilars,
see Part IV-Note 19, Contingencies and commitments, to the Consolidated
Financial Statements.
Prolia®
Total Prolia® sales by geographic region were as follows (dollar amounts in
millions):
                                Year ended                       Year ended                       Year ended
                               December 31,                     December 31,                     December 31,
                                   2019           Change            2018           Change            2017
Prolia® - U.S.               $        1,772           18 %    $        1,500           18 %    $        1,272
Prolia® - ROW                           900           14 %               791           14 %               696
Total Prolia®                $        2,672           17 %    $        2,291           16 %    $        1,968


The increases in global Prolia® sales for 2019 and 2018 were driven by higher
unit demand. Prolia®, which has a six-month dosing interval, has exhibited a
historical sales pattern, with the first and third quarters of a year
representing lower sales than the second and fourth quarters of a year.
XGEVA®
Total XGEVA® sales by geographic region were as follows (dollar amounts in
millions):
                                Year ended                        Year ended                       Year ended
                               December 31,                      December 31,                     December 31,
                                   2019            Change            2018           Change            2017
XGEVA® - U.S.                $        1,457            9 %     $        1,338           16 %    $        1,157
XGEVA® - ROW                            478            7 %                448            7 %               418
Total XGEVA®                 $        1,935            8 %     $        1,786           13 %    $        1,575

The increases in global XGEVA® sales for 2019 and 2018 were driven primarily by higher unit demand.


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Aranesp®


Total Aranesp® sales by geographic region were as follows (dollar amounts in
millions):
                                Year ended                       Year ended                       Year ended
                               December 31,                     December 31,                     December 31,
                                   2019           Change            2018           Change            2017
Aranesp® - U.S.              $          758          (20 )%   $          942          (15 )%   $        1,114
Aranesp® - ROW                          971            4  %              935            -  %              939
Total Aranesp®               $        1,729           (8 )%   $        1,877           (9 )%   $        2,053


The decreases in global Aranesp® sales for 2019 and 2018 were driven primarily
by the impact of competition on unit demand in the United States.
Aranesp® faces competition from a long-acting ESA. Aranesp® also faces
competition from a biosimilar version of EPOGEN®. Other biosimilar versions of
EPOGEN® may also receive approval in the future. In 2019, sales in the United
States declined, and we expect them to continue to decline at a faster rate in
2020 due to short- and long-acting competition.
KYPROLIS®
Total KYPROLIS® sales by geographic region were as follows (dollar amounts in
millions):
                                Year ended
                               December 31,                       Year ended                         Year ended
                                   2019           Change      December 31, 2018      Change      December 31, 2017
KYPROLIS® - U.S.             $          654           12 %    $            583            4 %    $            562
KYPROLIS® - ROW                         390            1 %                 385           41 %                 273
Total KYPROLIS®              $        1,044            8 %    $            968           16 %    $            835


The increase in global KYPROLIS® sales for 2019 was driven primarily by higher
unit demand.
The increase in global KYPROLIS® sales for 2018 was driven primarily by higher
unit demand, offset partially by lower net selling price.
We are engaged in litigation with two related companies that are challenging our
material patents related to KYPROLIS® and that are seeking to market generic
carfilzomib products. Separately, we have entered into confidential settlement
agreements with other companies developing generic carfilzomib products, and the
court has entered consent judgments enjoining those companies from infringing
certain of our patents, subject to terms of the confidential settlement
agreements. See Part IV-Note 19, Contingencies and commitments, to the
Consolidated Financial Statements. The FDA has reported that it has tentatively
approved Abbreviated New Drug Applications (ANDAs) filed by two companies for
generic carfilzomib products. The date of final approval of those ANDAs is
governed by the Hatch-Waxman Act and any applicable settlement agreements
between the parties.
EPOGEN®
Total EPOGEN® sales were as follows (dollar amounts in millions):
                                                                   Year ended                        Year ended
                                 Year ended                       December 31,                      December 31,
                             December 31, 2019      Change            2018            Change            2017
EPOGEN® - U.S.               $            867          (14 )%   $        1,010           (8 )%    $        1,096


The decreases in EPOGEN® sales for 2019 and 2018 were driven primarily by a
decline in net selling price due to our contract with DaVita. See Part I, Item
I. Business-Business Relationships. In 2020, we expect a lower net selling price
compared with 2019 due to our contract with DaVita.

                                       50
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A biosimilar version of EPOGEN® has been approved and launched, and other
biosimilar versions may also receive approval in the future. Therefore, we face
increased competition in the United States, which has had and will continue to
have a material adverse impact on sales of EPOGEN®. For a discussion of ongoing
patent litigation related to one of these biosimilars, see Part IV-Note 19,
Contingencies and commitments, to the Consolidated Financial Statements.
Sensipar®/Mimpara®
Total Sensipar®/Mimpara® sales by geographic region were as follows (dollar
amounts in millions):
                                                                   Year ended                        Year ended
                                 Year ended                       December 31,                      December 31,
                             December 31, 2019      Change            2018            Change            2017
Sensipar® - U.S.             $            252          (82 )%   $        1,436            5  %    $        1,374
Sensipar®/Mimpara® - ROW                  299          (12 )%              338           (2 )%               344
Total Sensipar®/Mimpara®     $            551          (69 )%   $        1,774            3  %    $        1,718


The decrease in global Sensipar®/Mimpara® sales for 2019 was driven by the
impact of generic competitors on unit demand.
The increase in global Sensipar®/Mimpara® sales for 2018 was driven primarily by
an increase in net selling price in the United States, offset partially by lower
unit demand.
Our U.S. composition-of-matter patent related to Sensipar®, a small molecule,
expired in March 2018. We are involved in litigation with a number of companies
seeking to market generic cinacalcet products surrounding our U.S. formulation
patent, which expires in September 2026. During the course of the patent
litigation, we have entered into confidential settlement agreements with several
of these companies. The court has entered consent judgments enjoining certain of
those companies from infringing certain of our patents, subject to terms of the
confidential settlement agreements. See Part IV-Note 19, Contingencies and
commitments, to the Consolidated Financial Statements. Companies manufacturing
generics began selling their generic cinacalcet products in the United States in
late 2018 and 2019. Sensipar® sales have been and, we believe, may continue to
be adversely impacted as a result of generic-product sales in the U.S. market.


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Other products
Other product sales by geographic region were as follows (dollar amounts in
millions):
                                Year ended                       Year ended                       Year ended
                               December 31,                     December 31,                     December 31,
                                   2019           Change            2018           Change            2017
Nplate® - U.S.               $          480           10  %   $          438           12  %   $          392
Nplate® - ROW                           315           13  %              279           12  %              250
Vectibix® - U.S.                        316           10  %              288           15  %              251
Vectibix® - ROW                         428            6  %              403            3  %              391
Repatha® - U.S.                         376            5  %              358           59  %              225
Repatha® - ROW                          285           48  %              192            *                  94
Parsabiv® - U.S.                        550           82  %              302            *                   -
Parsabiv® - ROW                          80            *                  34            *                   5
BLINCYTO® - U.S.                        176           31  %              134           18  %              114
BLINCYTO® - ROW                         136           42  %               96           57  %               61
Aimovig® - U.S.                         306            *                 119            *                   -
NEUPOGEN® - U.S.                        178          (20 )%              223          (40 )%              369
NEUPOGEN® - ROW                          86          (39 )%              142          (21 )%              180
KANJINTITM - U.S.                       118            *                   -            -  %                -
KANJINTITM - ROW                        108            *                  44            *                   -
AMGEVITATM - ROW                        215            *                  11            *                   -
EVENITY® - U.S.                          42            *                   -            -  %                -
EVENITY® - ROW                          147            *                   -            -  %                -
Otezla® - U.S.                          139            *                   -            -  %                -
Otezla® - ROW                            39            *                   -            -  %                -
MVASITM - U.S.                          121            *                   -            -  %                -
MVASITM - ROW                             6            *                   -            -  %                -
Other - U.S.                            105           24  %               85           25  %               68
Other - ROW                             207            9  %              190            4  %              183
Total other product sales    $        4,959           49  %   $        3,338           29  %   $        2,583
Total U.S. - other products  $        2,907           49  %   $        1,947           37  %   $        1,419
Total ROW - other products            2,052           48  %            1,391           20  %            1,164
Total other product sales    $        4,959           49  %   $        3,338           29  %   $        2,583


* Change in excess of 100%.

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Operating expenses
Operating expenses were as follows (dollar amounts in millions):
                                 Year ended                         Year ended                         Year ended
                             December 31, 2019      Change      December 31, 2018      Change      December 31, 2017
Operating expenses:
Cost of sales                $       4,356               6  %   $       4,101               1  %   $       4,069
% of product sales                    19.6 %                             18.2 %                             18.7 %
% of total revenues                   18.6 %                             17.3 %                             17.8 %
Research and development     $       4,116              10  %   $       3,737               5  %   $       3,562
% of product sales                    18.5 %                             16.6 %                             16.3 %
% of total revenues                   17.6 %                             15.7 %                             15.6 %
Selling, general and
administrative               $       5,150              (3 )%   $       5,332               9  %   $       4,870
% of product sales                    23.2 %                             23.7 %                             22.3 %
% of total revenues                   22.0 %                             22.5 %                             21.3 %
Other                        $          66             (79 )%   $         314             (16 )%   $         375


Cost of sales
Cost of sales increased to 18.6% of total revenues for 2019, driven primarily by
unfavorable product mix and amortization of intangible assets as a result of our
acquisition of Otezla®, offset partially by lower royalties and lower
manufacturing costs.
Cost of sales decreased to 17.3% of total revenues for 2018, driven primarily by
lower royalty costs, expenses related to Hurricane Maria in 2017 and lower
acquisition-related amortization of intangible assets, offset partially by
higher manufacturing costs.
Research and development
The Company groups all of its R&D activities and related expenditures into three
categories: (i) research and early pipeline, (ii) later-stage clinical programs
and (iii) marketed products. These categories are described below:
          Category                                   Description
                                R&D expenses incurred in activities substantially in
                                support of early research through the completion of
Research and early pipeline     phase 1 clinical trials, including drug discovery,
                                toxicology, pharmacokinetics and drug metabolism, and
                                process development
                                R&D expenses incurred in or related to phase 2 and
                                phase 3 clinical programs intended to result in
Later-stage clinical programs   registration of a new product or a new indication for
                                an existing product primarily in the United States or
                                the EU
                                R&D expenses incurred in support of the Company's
                                marketed products that are authorized to be sold
                                primarily in the United States or the EU. Includes
                                clinical trials designed to gather information on
                                product safety (certain of which may be required by
Marketed products               regulatory authorities) and their product
                                characteristics after regulatory approval has been
                                obtained, as well as the costs of obtaining
                                regulatory approval of a product in a new market
                                after approval in either the United States or the EU
                                has been obtained

R&D expense by category was as follows (in millions):


                                    Years ended December 31,
                                   2019          2018       2017
Research and early pipeline   $   1,649        $ 1,201    $   972
Later-stage clinical programs     1,062          1,034        879
Marketed products                 1,405          1,502      1,711
Total R&D expense             $   4,116        $ 3,737    $ 3,562



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The increase in R&D expense for 2019 was driven primarily by higher spend in
research and early pipeline in support of our oncology programs, offset
partially by lower marketed-product support.
The increase in R&D expense for 2018 was driven by higher spend on our early
pipeline and later-stage clinical programs as well as external business
development expense in research and early pipeline, offset partially by lower
marketed-product support.
Selling, general and administrative
The decrease in Selling, general and administrative (SG&A) expenses for 2019 was
driven primarily by lower general and administrative expenses, the end of
certain amortization charges in 2018 and lower spend for launched and marketed
products, offset partially by spending for Otezla® commercial-related expenses.
The increase in SG&A expense for 2018 was driven primarily by investments in
product launches and marketed-product support.
Other
Other operating expenses for 2019 included $47 million in restructuring costs.
Other operating expenses for 2018 included a $330 million impairment charge
associated with an IPR&D asset and a $42 million favorable net change in the
fair values of contingent consideration liabilities. See Part IV-Note 17, Fair
value measurement, to the Consolidated Financial Statements.
Other operating expenses for 2017 included $284 million of impairment-related
charges associated with an intangible asset acquired in a business combination
and $83 million of certain net charges related to a restructuring plan.
Nonoperating expenses/income and income taxes
Nonoperating expenses/income and income taxes were as follows (dollar amounts in
millions):
                                    Years ended December 31,
                                  2019        2018        2017

Interest expense, net $ 1,289 $ 1,392 $ 1,304 Interest and other income, net $ 753 $ 674 $ 928 Provision for income taxes $ 1,296 $ 1,151 $ 7,618 Effective tax rate

                 14.2 %      12.1 %      79.4 %


Interest expense, net
The decrease in Interest expense, net, for 2019 was due primarily to a reduction
in outstanding long-term debt as a result of maturities in the current year.
The increase in Interest expense, net, for 2018 was due primarily to the impact
of rising interest rates on variable-rate debt.
Interest and other income, net
The increase in Interest and other income, net, for 2019 was due primarily to
net gains on sales of investments in interest-bearing securities liquidated to
fund our acquisition of Otezla® and our investment in BeiGene compared with
losses in the prior year, offset partially by reduced interest income as a
result of lower average cash balances and a gain recognized in connection with
our acquisition of Kirin-Amgen, Inc. (K-A), in the first quarter of 2018. See
Part IV-Note 2, Acquisitions, and Note 21, Subsequent events, to the
Consolidated Financial Statements.
The decrease in Interest and other income, net, for 2018 was due primarily to
higher investment losses and lower interest income as a result of the
liquidation of a portion of our portfolio, offset partially by gains on our
equity investments and a net gain recognized in connection with our acquisition
of K-A.
Income taxes
The increase in our effective tax rate for 2019 compared with 2018 was due
primarily to a prior-year tax benefit associated with intercompany sales under
U.S. corporate tax reform.
The decrease in our effective tax rate for 2018 compared with 2017 was due
primarily to impacts of U.S. corporate tax reform.

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As previously disclosed, we received an RAR from the IRS for the years 2010,
2011 and 2012. The RAR proposes to make significant adjustments that relate
primarily to the allocation of profits between certain of our entities in the
United States and the U.S. territory of Puerto Rico. In November 2017, we
received a modified RAR that revised the IRS's calculation but continued to
propose substantial adjustments. We disagree with the proposed adjustments and
are pursuing resolution with the IRS administrative appeals office, which
currently has jurisdiction over the matter. If we deem necessary, we will
vigorously contest the proposed adjustments through the judicial process. Final
resolution of this complex matter is not likely within the next 12 months and
could have a material impact on our consolidated financial statements. We
believe our accrual for income tax liabilities is appropriate based on past
experience, interpretations of tax law and judgments about potential actions by
tax authorities; however, due to the complexity of the provision for income
taxes, the ultimate resolution of any tax matters may result in payments
substantially greater or less than amounts accrued.
See Summary of Critical Accounting Policies-Income taxes, and Part IV-Note 6,
Income taxes, to the Consolidated Financial Statements.
Financial Condition, Liquidity and Capital Resources
Selected financial data was as follows (in millions):
                                                     December 31,
                                                   2019        2018

Cash, cash equivalents and marketable securities $ 8,911 $ 29,304 Total assets

$ 59,707    $ 66,416
Current portion of long-term debt                $  2,953    $  4,419
Long-term debt                                   $ 26,950    $ 29,510
Stockholders' equity                             $  9,673    $ 12,500


Cash, cash equivalents and marketable securities
We have global access to our $8.9 billion balance of cash, cash equivalents and
marketable securities. The primary objective of our investment portfolio is to
maintain safety of principal, prudent levels of liquidity and acceptable levels
of risk. Our investment policy limits interest-bearing security investments to
certain types of debt and money market instruments issued by institutions with
primarily investment-grade credit ratings, and it places restrictions on
maturities and concentration by asset class and issuer.
Capital allocation
Consistent with the objective to optimize our capital structure, we seek to
deploy our accumulated cash balances in an efficient manner, and we consider
several alternatives such as payment of dividends, stock repurchases, repayment
of debt and strategic transactions that expand our portfolio of products in
areas of therapeutic interest.
We intend to continue to invest in our business while returning capital to
stockholders through the payment of cash dividends and stock repurchases,
thereby reflecting our confidence in the future cash flows of our business. The
timing and amount of future dividends and stock repurchases will vary based on a
number of factors, including future capital requirements for strategic
transactions, availability of financing on acceptable terms, debt service
requirements, our credit rating, changes to applicable tax laws or corporate
laws, changes to our business model and periodic determination by our Board of
Directors that cash dividends and/or stock repurchases are in the best interests
of stockholders and are in compliance with applicable laws and the Company's
agreements. In addition, the timing and amount of stock repurchases may also be
affected by stock price and blackout periods, during which we are restricted
from repurchasing stock. The manner of stock repurchases may include private
block purchases, tender offers and market transactions.
The Board of Directors declared quarterly cash dividends of $1.15 per share of
common stock paid in 2017, increased our quarterly cash dividend by 15% to $1.32
per share of common stock paid in 2018 and increased our quarterly cash dividend
by 10% to $1.45 per share of common stock paid in 2019. In December 2019, the
Board of Directors declared a cash dividend of $1.60 per share of common stock
for the first quarter of 2020, an increase of 10% for this period, to be paid in
March 2020.
We also returned capital to stockholders through our stock repurchase program.
During 2019, we repurchased $7.6 billion of common stock and had cash
settlements of $7.7 billion. In 2018, we repurchased $17.9 billion of common
stock and had cash settlements of $17.8 billion, which included 52.1 million
shares of common stock repurchased through a $10.0 billion tender offer. In
2017, we repurchased $3.1 billion of common stock and had cash settlements of
$3.2 billion. In May 2019 and December 2019,

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our Board of Directors increased the amount authorized under our stock
repurchase program by an additional $5.0 billion and $4.0 billion, respectively.
As of December 31, 2019, $6.5 billion remained available under the stock
repurchase program.
As a result of stock repurchases and quarterly dividend payments, we have an
accumulated deficit as of December 31, 2019 and 2018. Our accumulated deficit is
not expected to affect our future ability to operate, repurchase stock, pay
dividends or repay our debt given our continuing profitability and strong
financial position.
We believe that existing funds, cash generated from operations and existing
sources of and access to financing are adequate to satisfy our needs for working
capital, capital expenditure and debt service requirements, our plans to pay
dividends and repurchase stock and other business initiatives we plan to
strategically pursue, including acquisitions and licensing activities. We
anticipate that our liquidity needs can be met through a variety of sources,
including cash provided by operating activities, sales of marketable securities,
borrowings through commercial paper and/or syndicated credit facilities and
access to other domestic and foreign debt markets and equity markets. See Part
I, Item 1A. Risk Factors-Global economic conditions may negatively affect us and
may magnify certain risks that affect our business.
Financing arrangements
The current and noncurrent portions of our long-term borrowings as of December
31, 2019, were $3.0 billion and $27.0 billion, respectively. The current and
noncurrent portions of our long-term borrowings as of December 31, 2018, were
$4.4 billion and $29.5 billion, respectively. As of December 31, 2019, Standard
& Poor's Financial Services LLC (S&P), Moody's Investors Service, Inc.
(Moody's), and Fitch Ratings, Inc. (Fitch), assigned credit ratings to our
outstanding senior notes of A- with a stable outlook, Baa1 with a stable outlook
and BBB+ with a stable outlook, respectively, which are considered investment
grade. Unfavorable changes to these ratings may have an adverse impact on future
financings.
During 2019 and 2018, we did not issue any debt or debt securities. During 2017,
we issued debt with an aggregate principal amount of $4.5 billion. During 2019,
2018 and 2017, we repaid debt of $4.5 billion, $1.1 billion and $4.4 billion,
respectively.
To achieve a desired mix of fixed-rate and floating-rate debt, we entered into
interest rate swap contracts that effectively converted a fixed-rate interest
coupon for certain of our debt issuances to a floating LIBOR-based coupon over
the life of the respective note. These interest rate swap contracts qualify and
are designated as fair value hedges. As of December 31, 2019 and 2018, we had
interest rate swap contracts with aggregate notional amounts of $9.6 billion and
$11.0 billion, respectively.
To hedge our exposure to foreign currency exchange rate risk associated with
certain of our long-term notes denominated in foreign currencies, we entered
into cross-currency swap contracts, which effectively convert the interest
payments and principal repayment of the respective notes from euros, pounds
sterling and Swiss francs to U.S. dollars. These cross-currency swap contracts
qualify and are designated as cash flow hedges. As of December 31, 2019 and
2018, we had cross-currency swap contracts with aggregate notional amounts of
$4.8 billion and $5.6 billion, respectively.
As of December 31, 2019, we had a commercial paper program that allows us to
issue up to $2.5 billion of unsecured commercial paper to fund our
working-capital needs. During 2017, we issued and repaid an aggregate of $12.3
billion of commercial paper and had a maximum outstanding balance of $1.5
billion under our commercial paper program. During 2019 and 2018, we did not
issue any commercial paper. No commercial paper was outstanding as of December
31, 2019 or 2018.
In 2019, we amended and restated our $2.5 billion syndicated, unsecured,
revolving credit agreement, which is available for general corporate purposes or
as a liquidity backstop to our commercial paper program. The commitments under
the revolving credit agreement may be increased by up to $750 million with the
agreement of the banks. Each bank that is a party to the agreement has an
initial commitment term of five years. This term may be extended for up to two
additional one-year periods with the agreement of the banks. Annual commitment
fees for this agreement are 0.09% of the unused portion of the facility based on
our current credit rating. Generally, we would be charged interest for any
amounts borrowed under this facility, based on our current credit rating, at (i)
LIBOR plus 1% or (ii) the highest of (A) the syndication agent bank base
commercial lending rate, (B) the overnight federal funds rate plus 0.50% or (C)
one-month LIBOR plus 1%. The agreement contains provisions relating to the
determination of successor rates to address the possible phase-out or
unavailability of designated reference rates. As of December 31, 2019 and 2018,
no amounts were outstanding under this facility.
It is anticipated that LIBOR will be phased out and replaced by 2022. While
various replacement reference rates have been discussed, an alternative
reference rate to LIBOR has not yet been widely adopted. Therefore, the
mechanics to modify existing contracts that reference LIBOR have not been
finalized. However, we do not expect that a change in the reference rate of our
contracts will be material. See Part 1, Item 1A. Risk Factors-Our sales and
operations are subject to the risks of doing business internationally, including
in emerging markets.

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In February 2020, we filed a shelf registration statement with the SEC that
allows us to issue unspecified amounts of debt securities; common stock;
preferred stock; warrants to purchase debt securities, common stock, preferred
stock or depositary shares; rights to purchase common stock or preferred stock;
securities purchase contracts; securities purchase units; and depositary shares.
Under this shelf registration statement, all of the securities available for
issuance may be offered from time to time with terms to be determined at the
time of issuance. This shelf registration statement expires in February 2023.
Certain of our financing arrangements contain nonfinancial covenants. In
addition, our revolving credit agreement includes a financial covenant, which
requires that we maintain a specified minimum interest coverage ratio of (i) the
sum of consolidated net income, interest expense, provision for income taxes,
depreciation expense, amortization expense, unusual or nonrecurring charges and
other noncash items (Consolidated EBITDA) to (ii) Consolidated Interest Expense,
each as defined and described in the credit agreement. We were in compliance
with all applicable covenants under these arrangements as of December 31, 2019.
See Part IV-Note 15, Financing arrangements, and Note 18, Derivative
instruments, to the Consolidated Financial Statements.
Cash flows
Our summarized cash flow activity was as follows (in millions):
                                                           Years ended 

December 31,


                                                       2019          2018   

2017


Net cash provided by operating activities           $   9,150     $  11,296     $ 11,177
Net cash provided by (used in) investing activities $   5,709     $  14,339     $ (4,024 )
Net cash used in financing activities               $ (15,767 )   $ (22,490 

) $ (6,594 )

Operating


Cash provided by operating activities has been and is expected to continue to be
our primary recurring source of funds. Cash provided by operating activities
decreased during 2019 due primarily to changes in working capital, an increase
in payments to the IRS related to an advance deposit and lower Net income. Cash
provided by operating activities increased during 2018 due primarily to
improvements in working capital, offset partially by higher payments to tax
authorities.
Investing
Cash provided by investing activities during 2019 and 2018 was due primarily to
net cash inflows related to marketable securities of $20.0 billion and $15.0
billion, respectively. The liquidation of portions of our marketable securities
portfolio in 2019 was due primarily to fund the acquisition of Otezla® and our
investment in BeiGene and, in 2018, to fund the tender offer to repurchase our
common stock. Cash used in investing activities during 2017 was due primarily to
net cash outflows related to marketable securities of $3.2 billion. Capital
expenditures were $618 million, $738 million and $664 million in 2019, 2018 and
2017, respectively. We currently estimate 2020 spending on capital projects to
be approximately $700 million.
Financing
Cash used in financing activities during 2019 was due primarily to repurchases
of our common stock of $7.7 billion, repayments of debt of $4.5 billion and
payments of dividends of $3.5 billion. Cash used in financing activities during
2018 was due primarily to repurchases of our common stock of $17.8 billion,
payments of dividends of $3.5 billion and repayments of debt of $1.1 billion.
Cash used in financing activities during 2017 was due primarily to payments of
dividends of $3.4 billion and repurchases of common stock of $3.2 billion,
offset partially by proceeds from issuances of debt, net of repayments, of $71
million.
See Part IV-Note 15, Financing arrangements, and Note 16, Stockholders' equity,
to the Consolidated Financial Statements.
Off-Balance Sheet Arrangements
We do not have any off-balance sheet arrangements that are material or
reasonably likely to become material to our consolidated financial position or
consolidated results of operations.

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Contractual Obligations



Contractual obligations represent future cash commitments and liabilities under
agreements with third parties and exclude contingent liabilities for which we
cannot reasonably predict future payment. Additionally, the expected timing of
payment of the obligations presented below is estimated based on current
information. Timing of payments and actual amounts paid may be different
depending on the timing of receipt of goods or services or changes to
agreed-upon terms or amounts for some obligations.

The following table represents our contractual obligations aggregated by type
(in millions):
                                                     Payments due by period as of December 31, 2019
                                                                                                            Years 6
Contractual obligations               Total         Year 1        Years 2 and 3       Years 4 and 5        and beyond
Long-term debt obligations
(1) (2) (3)                       $    48,080     $   4,086     $         9,612     $         4,467     $      29,915
Operating lease obligations (4)           910           159                 266                 157               328
Purchase obligations (5)                1,938         1,512                 255                 100                71
U.S. repatriation tax (6)               6,162           587               1,174               2,567             1,834
Unrecognized tax benefits
(UTBs) (7)                                  -             -                   -                   -                 -
Total contractual obligations     $    57,090     $   6,344     $        11,307     $         7,291     $      32,148

(1) Long-term debt obligations include future interest payments on our

fixed-rate obligations at the contractual coupon rates. To achieve a desired

mix of fixed-rate and floating-rate debt, we enter into interest rate swap

contracts that effectively convert a fixed-rate interest coupon for certain

of our debt issuances to a floating LIBOR-based coupon over the terms of the

related hedge contracts. We used an interest rate forward curve as of

December 31, 2019, in computing net amounts to be paid or received under our

interest rate swap contracts, which resulted in an aggregate net decrease in

future interest payments of $309 million. See Part IV-Note 15, Financing


     arrangements, to the Consolidated Financial Statements.


(2)  Long-term debt obligations include future interest payments on our

LIBOR-based variable-rate obligations. We used an interest rate forward

curve as of December 31, 2019, in computing the LIBOR-based portion of

interest payments on these debt obligations. See Part IV-Note 15, Financing


     arrangements, to the Consolidated Financial Statements.


(3)  Long-term debt obligations include contractual interest payments and

principal repayments of our foreign-denominated debt obligations. In order

to hedge our exposure to foreign currency exchange rate risk associated with

certain of our euro-, pound-sterling- and Swiss-franc-denominated long-term


     debt, we entered into cross-currency swap contracts that effectively
     converted interest payments and principal repayments on this debt from
     euros, pounds sterling and Swiss francs to U.S. dollars. For purposes of

this table, we used the contracted exchange rates in the cross-currency swap


     contracts to compute the net amounts of future interest payments and
     principal repayments on this debt. See Part IV-Note 18, Derivative
     instruments, to the Consolidated Financial Statements.


(4)  Operating lease obligations includes payments for leases that have not yet

commenced, net of lease incentives, and excludes $141 million of future

receipts under noncancelable subleases of abandoned facilities.

(5) Purchase obligations relate primarily to (i) R&D commitments (including

those related to clinical trials) for new and existing products,

(ii) capital expenditures and (iii) open purchase orders for the acquisition

of goods and services in the ordinary course of business. Our obligation to

pay certain of these amounts may be reduced based on certain future events.




(6)  Under the 2017 Tax Act, we elected to pay in eight annual installments the
     repatriation tax related primarily to our prior indefinitely invested
     earnings of our foreign operations. See Part IV-Note 19, Contingencies and
     commitments-Commitments - U.S. repatriation tax, to the Consolidated
     Financial Statements.


(7)  Liabilities for UTBs are not included in the table above because due to

their nature there is a high degree of uncertainty regarding the timing of

future cash outflows and other events that extinguish these liabilities. See

Part IV-Note 6, Income taxes, to the Consolidated Financial Statements.




In addition to amounts in the table above, we are contractually obligated to pay
additional amounts, which in the aggregate are significant, upon the achievement
of various development, regulatory and commercial milestones for agreements we
have entered into with third parties, including contingent consideration
incurred in the acquisitions of K-A and BioVex Group Inc. (BioVex). These
payments are contingent upon the occurrence of various future events,
substantially all of which have a high degree of uncertainty of occurring. These
contingent payments have not been included in the table above, and except with
respect to the fair value of the contingent consideration obligations, are not
recorded on our Consolidated Balance Sheets. As of December 31, 2019, the
maximum amount that may be payable in the future for agreements we have entered
into with third parties is $7.3 billion, including $325 million of contingent
consideration payments in connection with the acquisition of BioVex. Contingent

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consideration with respect to the acquisition of Dezima Pharma B.V. was excluded
due to the discontinuation of the development of AMG 899, upon which payments
are based. See Part IV-Note 17, Fair value measurement, to the Consolidated
Financial Statements.
Summary of Critical Accounting Policies
The preparation of our consolidated financial statements in conformity with GAAP
requires management to make estimates and assumptions that affect the amounts
reported in the financial statements and the notes to the financial statements.
Some of those judgments can be subjective and complex, and therefore, actual
results could differ materially from those estimates under different assumptions
or conditions.
Product sales and sales deductions
Revenue from product sales is recognized upon transfer of control of a product
to a customer, generally upon delivery, based on an amount that reflects the
consideration to which we expect to be entitled, net of accruals for estimated
rebates, wholesaler chargebacks, discounts and other deductions (collectively,
sales deductions) and returns established at the time of sale.
We analyze the adequacy of our accruals for sales deductions quarterly. Amounts
accrued for sales deductions are adjusted when trends or significant events
indicate that adjustment is appropriate. Accruals are also adjusted to reflect
actual results. Amounts recorded in Accrued liabilities in the Consolidated
Balance Sheets for sales deductions were as follows (in millions):
                                         Rebates       Chargebacks       Other deductions         Total
Balance as of December 31, 2016       $     1,417     $        342     $           115        $      1,874
Amounts charged against product sales       4,909            6,098                 992              11,999
Payments                                   (4,459 )         (6,168 )              (999 )           (11,626 )
Balance as of December 31, 2017             1,867              272                 108               2,247
Amounts charged against product sales       6,180            6,926               1,180              14,286
Payments                                   (5,458 )         (6,744 )            (1,161 )           (13,363 )
Balance as of December 31, 2018             2,589              454                 127               3,170
Amounts charged against product sales       6,825            7,090               1,292              15,207
Payments                                   (6,249 )         (6,985 )            (1,263 )           (14,497 )

Balance as of December 31, 2019 $ 3,165 $ 559 $

156 $ 3,880




For the years ended December 31, 2019, 2018 and 2017, total sales deductions
were 41%, 39% and 35% of gross product sales, respectively. The increase in the
total sales deductions balance as of December 31, 2019 compared to December 31,
2018, was driven primarily by the impact of increases in U.S. rebates and to a
lesser extent, higher chargebacks. Included in the amounts are immaterial net
adjustments related to prior-year sales due to changes in estimates. Such
amounts represent less than 1% of the aggregate sales deductions charged against
product sales in the years ended December 31, 2019, 2018 and 2017.
In the United States, we utilize wholesalers as the principal means of
distributing our products to healthcare providers such as physicians or their
clinics, dialysis centers, hospitals and pharmacies. Products we sell in Europe
are distributed principally to hospitals and/or wholesalers depending on the
distribution practice in each country where the products are sold. We monitor
the inventory levels of our products at our wholesalers by using data from our
wholesalers and other third parties, and we believe wholesaler inventories have
been maintained at appropriate levels (generally two to three weeks) given
end-user demand. Accordingly, historical fluctuations in wholesaler inventory
levels have not significantly affected our method of estimating sales deductions
and returns.
Accruals for sales deductions are based primarily on estimates of the amounts
earned or to be claimed on the related sales. These estimates take into
consideration current contractual and statutory requirements, specific known
market events and trends, internal and external historical data and forecasted
customer buying patterns. Sales deductions are substantially product specific
and therefore, for any given year, can be affected by the mix of products sold.
Rebates include primarily amounts paid to payers and providers in the United
States, including those paid to state Medicaid programs, and are based on
contractual arrangements or statutory requirements, which vary by product, by
payer and by individual payer plans. As we sell products, we estimate the amount
of rebate we will pay based on the product sold, contractual terms, estimated
patient population, historical experience and wholesaler inventory levels; and
we accrue these rebates in the period the related sales are recorded. We then
adjust the rebate accruals as more information becomes available and to reflect
actual claims experience. Estimating such rebates is complicated, in part
because of the time delay between the date of sale and the actual

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settlement of the liability. We believe the methodology we use to accrue for
rebates is reasonable and appropriate given current facts and circumstances, but
actual results may differ.
Wholesaler chargebacks relate to our contractual agreements to sell products to
healthcare providers in the United States at fixed prices that are lower than
the prices we charge wholesalers. When healthcare providers purchase our
products through wholesalers at these reduced prices, wholesalers charge us for
the difference between their purchase prices and the contractual prices between
Amgen and the healthcare providers. The provision for chargebacks is based on
the expected sales by our wholesaler customers to healthcare providers. Accruals
for wholesaler chargebacks are less difficult to estimate than rebates are, and
they closely approximate actual results since chargeback amounts are fixed at
the date of purchase by the healthcare providers and because we generally settle
the liability for these deductions within a few weeks.
Product returns
Returns are estimated through comparison of historical return data to their
related sales on a production lot basis. Historical rates of return are
determined for each product and are adjusted for known or expected changes in
the marketplace specific to each product, when appropriate. In each of the past
three years, sales return provisions have amounted to less than 1% of gross
product sales. Changes in estimates for prior-year sales return provisions have
historically been immaterial.
Income taxes
We provide for income taxes based on pretax income and applicable tax rates in
the various jurisdictions in which we operate.
We recognize the tax benefit from an uncertain tax position only if it is more
likely than not that the tax position will be sustained on examination by the
tax authorities based on the technical merits of the position. The tax benefit
recognized in the consolidated financial statements for a particular tax
position is measured based on the largest benefit that is more likely than not
to be realized. The amount of UTBs is adjusted as appropriate for changes in
facts and circumstances, such as significant amendments to existing tax law, new
regulations or interpretations by the tax authorities, new information obtained
during a tax examination or resolution of an examination. We believe our
estimates for uncertain tax positions are appropriate and sufficient for any
assessments that may result from examinations of our tax returns. We recognize
both accrued interest and penalties, where appropriate, related to UTBs in
income tax expense.
Certain items are included in our tax return at different times than they are
reflected in the financial statements and cause temporary differences between
the tax bases of assets and liabilities and their reported amounts. Such
temporary differences create deferred tax assets and liabilities. Deferred tax
assets are generally items that can be used as a tax deduction or credit in the
tax return in future years but for which we have already recorded the tax
benefit in the consolidated financial statements. We establish valuation
allowances against our deferred tax assets when the amount of expected future
taxable income is not likely to support the use of the deduction or credit.
Deferred tax liabilities are either (i) tax expenses recognized in the
consolidated financial statements for which payment has been deferred,
(ii) expenses for which we have already taken a deduction on the tax return but
have not yet recognized in the consolidated financial statements or (iii)
liabilities for the difference between the book basis and tax basis of the
intangible assets acquired in many business combinations, as future expenses
associated with these assets most often will not be tax deductible.
We are a vertically-integrated enterprise with operations in the United States
and various foreign jurisdictions. We are subject to income tax in the foreign
jurisdictions where we conduct operations based on the tax laws and principles
of such jurisdictions and the functions, risks and activities performed therein.
Our pretax income is therefore attributed to domestic or foreign sources based
on the operations performed and risks assumed in each location and the tax laws
and principles of the respective taxing jurisdictions. For example, we conduct
significant operations in Puerto Rico, a territory of the United States that is
treated as a foreign jurisdiction for U.S. tax purposes, pertaining to
manufacturing, distribution and other related functions to meet our worldwide
product demand. Income from our operations in Puerto Rico is subject to tax
incentive grants through 2035.
As previously disclosed, we received an RAR from the IRS for the years 2010,
2011 and 2012. The RAR proposes to make significant adjustments that relate
primarily to the allocation of profits between certain of our entities in the
United States and the U.S. territory of Puerto Rico. In November 2017, we
received a modified RAR that revised the IRS's calculation but continued to
propose substantial adjustments. We disagree with the proposed adjustments and
are pursuing resolution with the IRS administrative appeals office, which
currently has jurisdiction over the matter. If we deem necessary, we will
vigorously contest the proposed adjustments through the judicial process. Final
resolution of this complex matter is not likely within the next 12 months and
could have a material impact on our consolidated financial statements. We
believe our accrual for income tax liabilities is appropriate based on past
experience, interpretations of tax law and judgments about potential actions by
tax authorities; however, due to the complexity of the provision for income
taxes, the ultimate resolution of any tax matters may result in payments
substantially greater or less than amounts accrued. See Part IV-Note 6, Income
taxes, to the Consolidated Financial Statements.

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Our operations are subject to the tax laws, regulations and administrative
practices of the United States, U.S. state jurisdictions and other countries,
including the U.S. territory of Puerto Rico, in which we do business.
Significant changes in these rules could have a material adverse effect on our
results of operations. See Part I, Item 1A. Risk Factors-The adoption and
interpretation of new tax legislation or exposure to additional tax liabilities
could affect our profitability.
Contingencies
In the ordinary course of business, we are involved in various legal
proceedings, government investigations and other matters such as intellectual
property disputes, contractual disputes and class action suits which are complex
in nature and have outcomes that are difficult to predict. We describe our legal
proceedings and other matters that are significant or that we believe could
become significant in Part IV-Note 19, Contingencies and commitments, to the
Consolidated Financial Statements. We record accruals for loss contingencies to
the extent that we conclude that it is probable that a liability has been
incurred and the amount of the related loss can be reasonably estimated. We
evaluate, on a quarterly basis, developments in legal proceedings and other
matters that could cause an increase or decrease in the amount of the liability
that has been accrued previously.
While it is not possible to accurately predict or determine the eventual
outcomes of these items, an adverse determination in one or more of these items
currently pending could have a material adverse effect on our consolidated
results of operations, financial position or cash flows.
Valuation of assets and liabilities in connection with acquisitions
We have acquired and continue to acquire intangible assets in connection with
business combinations and asset acquisitions. These intangible assets consist
primarily of technology associated with currently marketed human therapeutic
products and IPR&D product candidates. Discounted cash flow models are typically
used to determine the fair values of these intangible assets for purposes of
allocating consideration paid to the net assets acquired in an acquisition. See
Part IV-Note 2, Acquisitions, to the Consolidated Financial Statements. These
models require the use of significant estimates and assumptions, including but
not limited to:
•      determining the timing and expected costs to complete in-process projects,

taking into account the stage of completion at the acquisition date;

• projecting the probability and timing of obtaining marketing approval from

the FDA and other regulatory agencies for product candidates;

• estimating the timing of and future net cash flows from product sales

resulting from completed products and in-process projects; and

• developing appropriate discount rates to calculate the present values of

the cash flows.




Significant estimates and assumptions are also required to determine the
business combination date fair values of any contingent consideration
obligations incurred in connection with business combinations. In addition, we
must revalue these obligations each subsequent reporting period until the
related contingencies are resolved and record changes in their fair values in
earnings. The acquisition date fair values of contingent consideration
obligations incurred or assumed in the acquisitions were determined using a
combination of valuation techniques. Significant estimates and assumptions
required for these valuations included but were not limited to the probability
of achieving regulatory milestones, product sales projections under various
scenarios and discount rates used to calculate the present value of the required
payments. These estimates and assumptions are required to be updated in order to
revalue these contingent consideration obligations each reporting period.
Accordingly, subsequent changes in underlying facts and circumstances could
result in changes in these estimates and assumptions, which could have a
material impact on the estimated future fair values of these obligations.
We believe the fair values used to record intangible assets acquired and
contingent consideration obligations incurred in connection with business
combinations and assets acquisitions are based on reasonable estimates and
assumptions given the facts and circumstances as of the related valuation dates.

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Impairment of long-lived assets
We review the carrying value of our property, plant and equipment and our
finite-lived intangible assets for impairment whenever events or changes in
circumstances indicate that the carrying amount of an asset may not be
recoverable. If such circumstances exist, an estimate of undiscounted future
cash flows to be generated by the long-lived asset is compared to the carrying
value to determine whether an impairment exists. If an asset is determined to be
impaired, the loss is measured based on the difference between the asset's fair
value and its carrying value.
Indefinite-lived intangible assets, composed of IPR&D projects acquired in a
business combination that have not reached technological feasibility or that
lack regulatory approval at the time of acquisition, are reviewed for impairment
annually, whenever events or changes in circumstances indicate that the carrying
amount may not be recoverable and upon establishment of technological
feasibility or regulatory approval. We determine impairment by comparing the
fair value of the asset to its carrying value. If the asset's carrying value
exceeds its fair value, an impairment charge is recorded for the difference, and
its carrying value is reduced accordingly.
Estimating future cash flows of an IPR&D product candidate for purposes of an
impairment analysis requires us to make significant estimates and assumptions
regarding the amount and timing of costs to complete the project and the amount,
timing and probability of achieving revenues from the completed product similar
to how the acquisition date fair value of the project was determined, as
described above. There are often major risks and uncertainties associated with
IPR&D projects as we are required to obtain regulatory approvals in order to be
able to market these products. Such approvals require completing clinical trials
that demonstrate a product candidate is safe and effective. Consequently, the
eventual realized value of the acquired IPR&D project may vary from its fair
value at the date of acquisition, and IPR&D impairment charges may occur in
future periods which could have a material adverse effect on our results of
operations.
We believe our estimations of future cash flows used for assessing impairment of
long-lived assets are based on reasonable assumptions given the facts and
circumstances as of the related dates of the assessments.
Recently Issued Accounting Standards
See Part IV-Note 1, Summary of significant accounting policies, to the
Consolidated Financial Statements for a discussion of recently adopted
accounting pronouncements and recently issued accounting pronouncements not yet
adopted as of December 31, 2019.

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