Other Operating Gains Net - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Disclosure of Other Operating Gains [Line Items] | ||
| Other operating (losses) gains, net | $ 34 | $ 736 |
| Revaluation of warrants | 9 | 82 |
| Gain on amendment to company's pension plan | $ 228 | 78 |
| Pension defined benefit plans [member] | ||
| Disclosure of Other Operating Gains [Line Items] | ||
| Gain on amendment to company's pension plan | 119 | |
| Investments accounted for using equity method [member] | ||
| Disclosure of Other Operating Gains [Line Items] | ||
| Gain on sale of equity method investment | $ 472 | |