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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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