Debt - Schedule of Borrowing Facilities and Amounts Undrawn (Details) - USD ($) $ in Millions |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|
| CP programmes | ||
| Borrowing Facilities [Line Items] | ||
| Facility | $ 20,000 | $ 20,000 |
| Amount undrawn | 20,000 | 20,000 |
| Committed credit facilities | ||
| Borrowing Facilities [Line Items] | ||
| Facility | 9,920 | 9,920 |
| Amount undrawn | $ 9,920 | $ 9,920 |