Supplemental Cash Flow Information - Details of Other in the Consolidated Statement of Cash Flow (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Disclosure Of Other In Consolidated Statement Of Cash Flow [abstract] | ||
| Non-cash employee benefit charges | $ 162 | $ 160 |
| Net gains on foreign exchange and derivative financial instruments | (8) | (28) |
| Revaluation of Refinitiv warrants (see note 19) | (9) | (82) |
| Fair value adjustments (see note 5) | (8) | (10) |
| Other | (2) | (163) |
| Total | $ 135 | $ (123) |