The Company is exposed to foreign currency exchange rate and interest rate risks related to its business operations. To reduce our risks related to such exposures, we use or have used certain derivative instruments, including foreign currency forward, foreign currency option, cross-currency swap, forward interest rate and interest rate swap contracts. We have designated certain of our derivatives as cash flow and fair value hedges; we also have derivatives not designated as hedges. We do not use derivatives for speculative trading purposes.

We are exposed to possible changes in the values of certain anticipated foreign currency cash flows resulting from changes in foreign currency exchange rates primarily associated with our euro-denominated international product sales. The foreign currency exchange rate fluctuation exposure associated with cash inflows from our international product sales is partially offset by corresponding cash outflows from our international operating expenses. To further reduce our exposure, we enter into foreign currency forward contracts to hedge a portion of our projected international product sales up to a maximum of three years into the future; and at any given point in time, a higher percentage of nearer-term projected product sales is being hedged than in successive periods.

As of both March 31, 2024 and December 31, 2023, we had outstanding foreign currency forward contracts with aggregate notional amounts of $6.6 billion. We have designated these foreign currency forward contracts, which are primarily euro based, as cash flow hedges. Accordingly, we report the unrealized gains and losses on these contracts in AOCI in the Condensed Consolidated Balance Sheets, and we reclassify them to Product sales in the Condensed Consolidated Statements of (Loss) Income in the same periods during which the hedged transactions affect earnings.

To hedge our exposure to foreign currency exchange rate risk associated with certain of our long-term debt denominated in foreign currencies, we enter into cross-currency swap contracts. Under the terms of such contracts, we paid euros and pounds sterling and received U.S. dollars for the notional amounts at the inception of the contracts; and based on these notional amounts, we exchange interest payments at fixed rates over the lives of the contracts by paying U.S. dollars and receiving euros and pounds sterling. In addition, we will pay U.S. dollars to and receive euros and pounds sterling from the counterparties at the maturities of the contracts for these same notional amounts. The terms of these contracts correspond to the related hedged debt, thereby effectively converting the interest payments and principal repayment on the debt from euros and pounds sterling to U.S. dollars. We have designated these cross-currency swap contracts as cash flow hedges. Accordingly, the unrealized gains and losses on these contracts are reported in AOCI in the Condensed Consolidated Balance Sheets and reclassified to Other (expense) income, net, in the Condensed Consolidated Statements of (Loss) Income in the same periods during which the hedged debt affects earnings.


	Foreign currency				U.S. dollars
Hedged notes	Notional amounts		Interest rates		Notional amounts		Interest rates

2.00% 2026 euro Notes	€	750	2.0	%	$	833	3.9	%
5.50% 2026 pound sterling Notes	£	475	5.5	%	$	747	6.0	%
4.00% 2029 pound sterling Notes	£	700	4.0	%	$	1,111	4.6	%

In connection with the anticipated issuance of long-term fixed-rate debt, we occasionally enter into forward interest rate contracts in order to hedge the variability in cash flows due to changes in the applicable U.S. Treasury rate between the time we enter into these contracts and the time the related debt is issued. Gains and losses on forward interest rate contracts, which are designated as cash flow hedges, are recognized in AOCI in the Condensed Consolidated Balance Sheets and are amortized into Interest expense, net, in the Condensed Consolidated Statements of (Loss) Income over the lives of the associated debt issuances. Amounts recognized in connection with forward interest rate contracts during the three months ended March 31, 2024, and amounts expected to be recognized during the subsequent 12 months are not material.


	Three months ended March 31,
Derivatives in cash flow hedging relationships	2024		2023
Foreign currency forward contracts	$	202	$	—
Cross-currency swap contracts	(24)		(40)
Forward interest rate contracts	—		(31)
Total unrealized gains (losses)	$	178	$	(71)

To achieve a desired mix of fixed-rate and floating-rate debt, we entered into interest rate swap contracts that qualified for and were designated as fair value hedges. These interest rate swap contracts effectively convert fixed-rate coupons to floating-rate coupons over the terms of the related hedge contracts. As of both March 31, 2024 and December 31, 2023, we had interest rate swap contracts with aggregate notional amounts of $6.7 billion that hedge certain portions of our long-term debt issuances.

For interest rate swap contracts that qualify for and are designated as fair value hedges, we recognize in Interest expense, net, in the Condensed Consolidated Statements of (Loss) Income the unrealized gain or loss on the derivative resulting from the change in fair value during the period, as well as the offsetting unrealized loss or gain of the hedged item resulting from the change in fair value during the period attributable to the hedged risk. If a hedging relationship involving an interest rate swap contract is terminated, the gain or loss realized on contract termination is recorded as an adjustment to the carrying value of the debt and amortized into Interest expense, net, over the remaining life of the previously hedged debt.


	Carrying amounts of hedged liabilities(1)				Cumulative amounts of fair value hedging adjustments related to the carrying amounts of the hedged liabilities(2)
Condensed Consolidated Balance Sheets locations	March 31, 2024		December 31, 2023		March 31, 2024		December 31, 2023
Current portion of long-term debt	$	1,454	$	1,441	$	54	$	41
Long-term debt	$	4,728	$	4,788	$	(417)	$	(355)

(1) Current portion of long-term debt includes $64 million and $69 million of carrying value with discontinued hedging relationships as of March 31, 2024 and December 31, 2023, respectively. Long-term debt includes $273 million and $288 million of carrying value with discontinued hedging relationships as of March 31, 2024 and December 31, 2023, respectively.

(2) Current portion of long-term debt includes $64 million and $69 million of hedging adjustments on discontinued hedging relationships as of March 31, 2024 and December 31, 2023, respectively. Long-term debt includes $173 million and $188 million of hedging adjustments on discontinued hedging relationships as of March 31, 2024 and December 31, 2023, respectively.



	Three months ended March 31, 2024
	Product sales		Other (expense) income, net		Interest expense, net
Total amounts recorded in income and (expense) line items presented in the Condensed Consolidated Statements of (Loss) Income	$	7,118	$	(235)	$	(824)
The effects of cash flow and fair value hedging:
Gains (losses) on cash flow hedging relationships reclassified out of AOCI:
Foreign currency forward contracts	$	51	$	—	$	—
Cross-currency swap contracts	$	—	$	(31)	$	—

Gains (losses) on fair value hedging relationships—interest rate swap agreements:
Hedged items(1)	$	—	$	—	$	49
Derivatives designated as hedging instruments	$	—	$	—	$	(28)



	Three months ended March 31, 2023
	Product sales		Other (expense) income, net		Interest expense, net
Total amounts recorded in income and (expense) line items presented in the Condensed Consolidated Statements of (Loss) Income	$	5,846	$	2,064	$	(543)
The effects of cash flow and fair value hedging:
Gains (losses) on cash flow hedging relationships reclassified out of AOCI:
Foreign currency forward contracts	$	52	$	—	$	—
Cross-currency swap contracts	$	—	$	(22)	$	—
(Losses) gains on fair value hedging relationships—interest rate swap agreements:
Hedged items(1)	$	—	$	—	$	(88)
Derivatives designated as hedging instruments	$	—	$	—	$	114

(1) Gains on hedged items do not exactly offset losses on the related designated hedging instruments due to amortization of the cumulative amounts of fair value hedging adjustments included in the carrying amount of the hedged debt for discontinued hedging relationships and the recognition of gains on terminated hedges when the corresponding hedged item was paid down in the period.

No portions of our cash flow hedge contracts were excluded from the assessment of hedge effectiveness. As of March 31, 2024, we expected to reclassify $97 million of net gains on our foreign currency and cross-currency swap contracts out of AOCI and into earnings during the next 12 months.

To reduce our exposure to foreign currency fluctuations in certain assets and liabilities denominated in foreign currencies, we enter into foreign currency forward contracts that are not designated as hedging transactions. Most of these exposures are hedged on a month-to-month basis. As of March 31, 2024 and December 31, 2023, the total notional amounts of these foreign currency forward contracts were $300 million and $457 million, respectively. Gains and losses recognized in earnings for our derivative instruments not designated as hedging instruments were not material for the three months ended March 31, 2024 and 2023.


	Derivative assets			Derivative liabilities
March 31, 2024	Condensed Consolidated Balance Sheets locations	Fair values		Condensed Consolidated Balance Sheets locations	Fair values
Derivatives designated as hedging instruments:
Foreign currency forward contracts	Other current assets/ Other noncurrent assets	$	225	Accrued liabilities/ Other noncurrent liabilities	$	43
Cross-currency swap contracts	Other current assets/ Other noncurrent assets	—		Accrued liabilities/ Other noncurrent liabilities	429
Interest rate swap contracts	Other current assets/ Other noncurrent assets	—		Accrued liabilities/ Other noncurrent liabilities	600
Forward interest rate contracts	Other current assets/ Other noncurrent assets	—		Accrued liabilities/ Other noncurrent liabilities	—
Total derivatives designated as hedging instruments		225			1,072




Total derivatives		$	225		$	1,072


	Derivative assets			Derivative liabilities
December 31, 2023	Condensed Consolidated Balance Sheets locations	Fair values		Condensed Consolidated Balance Sheets locations	Fair values
Derivatives designated as hedging instruments:
Foreign currency forward contracts	Other current assets/ Other noncurrent assets	$	145	Accrued liabilities/ Other noncurrent liabilities	$	116
Cross-currency swap contracts	Other current assets/ Other noncurrent assets	—		Accrued liabilities/ Other noncurrent liabilities	405
Interest rate swap contracts	Other current assets/ Other noncurrent assets	—		Accrued liabilities/ Other noncurrent liabilities	571
Forward interest rate contracts	Other current assets/ Other noncurrent assets	—		Accrued liabilities/ Other noncurrent liabilities	—
Total derivatives designated as hedging instruments		145			1,092



Total derivatives		$	145		$	1,092

Our derivative contracts that were in liability positions as of March 31, 2024, contain certain credit-risk-related contingent provisions that would be triggered if (i) we were to undergo a change-in-control and (ii) our or the surviving entity’s creditworthiness deteriorates, which is generally defined as having either a credit rating that is below investment grade or a materially weaker creditworthiness after the change-in-control. If these events were to occur, the counterparties would have the right, but not the obligation, to close the contracts under early-termination provisions. In such circumstances, the counterparties could request immediate settlement of these contracts for amounts that approximate the then current fair values of the contracts. In addition, our derivative contracts are not subject to any type of master netting arrangement, and amounts due either to or from a counterparty under the contracts may be offset against other amounts due either to or from the same counterparty only if an event of default or termination, as defined, were to occur.

The cash flow effects of our derivative contracts in the Condensed Consolidated Statements of Cash Flows are included in Net cash provided by operating activities, except for the settlement of notional amounts of cross-currency swaps, which are included in Net cash (used in) provided by financing activities.