Financial Instruments - Reconciliation of Movements of Liabilities to Cash Flows Arising from Financing Activities (Parenthetical) (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Disclosure of reconciliation of liabilities arising from financing activities [line items] | ||
| Payment for lease liability for technology equipment | $ 109 | $ 75 |
| Technology-based intangible assets [member] | ||
| Disclosure of reconciliation of liabilities arising from financing activities [line items] | ||
| Payment for lease liability for technology equipment | $ 23 | |