Commitments and Contingencies - Contingencies (Details) £ in Millions, $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Dec. 31, 2022
USD ($)
|
Dec. 31, 2022
GBP (£)
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2023
GBP (£)
|
|
| Commitments and Contingencies Disclosure [Abstract] | ||||
| Loss contingency accrual | $ 1,600 | $ 1,000 | ||
| Non-income tax matters | 614 | 336 | ||
| Value tax assessment | $ 733 | £ 613 | $ 789 | £ 631 |