Segment Information - Total Revenue by Geographic Region (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Segment Reporting Information [Line Items] | |||
| Revenue | $ 19,374 | $ 16,205 | $ 14,539 |
| Americas [Member] | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | 12,399 | 10,593 | 9,703 |
| Europe [Member] | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | 6,105 | 4,940 | 4,158 |
| Asia-Pacific [Member] | |||
| Segment Reporting Information [Line Items] | |||
| Revenue | $ 870 | $ 672 | $ 678 |