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Derivative instruments - Fair Value of Derivatives (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Assets
Total derivative assets, fair value	$ 341	$ 265
Liabilities
Total derivative liabilities, fair value	1,398	534
Derivatives designated as hedging instruments [Member]
Assets
Total derivative assets, fair value	341	265
Liabilities
Total derivative liabilities, fair value	1,398	534
Derivatives designated as hedging instruments [Member] | Foreign currency forward contracts | Other current assets/ Other noncurrent assets
Assets
Total derivative assets, fair value	287	183
Derivatives designated as hedging instruments [Member] | Foreign currency forward contracts | Accrued liabilities/ Other noncurrent liabilities
Liabilities
Total derivative liabilities, fair value	76	39
Derivatives designated as hedging instruments [Member] | Cross-currency swap contracts | Other current assets/ Other noncurrent assets
Assets
Total derivative assets, fair value	54	66
Derivatives designated as hedging instruments [Member] | Cross-currency swap contracts | Accrued liabilities/ Other noncurrent liabilities
Liabilities
Total derivative liabilities, fair value	541	339
Derivatives designated as hedging instruments [Member] | Interest rate swap contracts | Other current assets/ Other noncurrent assets
Assets
Total derivative assets, fair value	0	16
Derivatives designated as hedging instruments [Member] | Interest rate swap contracts | Accrued liabilities/ Other noncurrent liabilities
Liabilities
Total derivative liabilities, fair value	776	156
Derivatives designated as hedging instruments [Member] | Forward interest rate contracts | Other current assets/ Other noncurrent assets
Assets
Total derivative assets, fair value	0	0
Derivatives designated as hedging instruments [Member] | Forward interest rate contracts | Accrued liabilities/ Other noncurrent liabilities
Liabilities
Total derivative liabilities, fair value	$ 5	$ 0

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