Debt - Schedule of Debt (Details) - USD ($) $ in Millions |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Disclosure Of Debt [Line Items] | ||
| Current debt: | $ 9,931 | $ 9,001 |
| Short-term debt | 845 | 1,026 |
| Long-term debt due within 1 year | 9,086 | 7,975 |
| Non-current debt | 71,610 | 74,794 |
| Total | 81,541 | 83,795 |
| Debt (excluding lease liabilities) | ||
| Disclosure Of Debt [Line Items] | ||
| Current debt: | 5,288 | 4,620 |
| Short-term debt | 845 | 1,026 |
| Long-term debt due within 1 year | 4,443 | 3,594 |
| Non-current debt | 48,544 | 51,532 |
| Total | 53,832 | 56,152 |
| Lease liabilities | ||
| Disclosure Of Debt [Line Items] | ||
| Current debt: | 4,643 | 4,381 |
| Short-term debt | ||
| Long-term debt due within 1 year | 4,643 | 4,381 |
| Non-current debt | 23,066 | 23,262 |
| Total | $ 27,709 | $ 27,643 |