Financial Instruments and Fair Value Measures - Effect of derivatives on Income Statement (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Cash flow hedges | ||||
| Gain (loss) recognized in other comprehensive income (loss) | $ 12 | $ 6 | $ 30 | $ (3) |
| Net investment hedges | ||||
| Gain (loss) recognized in other comprehensive income (loss) | 10 | 6 | 52 | (171) |
| Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold | ||||
| Cash flow hedges | ||||
| Gain (loss) reclassified from AOCI to income: | 5 | (1) | 13 | (1) |
| Income Statement Location [Axis]: us-gaap:InterestExpenseOperating | ||||
| Cash flow hedges | ||||
| Gain (loss) reclassified from AOCI to income: | 0 | 0 | 0 | (4) |
| Income Statement Location [Axis]: us-gaap:OtherNonoperatingIncomeExpense | ||||
| Cash flow hedges | ||||
| Gain (loss) reclassified from AOCI to income: | $ 2 | $ 1 | $ 19 | $ 65 |