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Stockholders' Equity - Summary of Other Equity Reserves (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Mar. 26, 2020
Disclosure of reserves within equity [abstract] |  |  |  |
Cumulative translation effect, net of effects from deferred income taxes recognized directly in equity (note 21.2) and derivative financial instruments designated as cash flow hedges | $ (722) | $ (508) |  |
Cumulative actuarial losses | (529) | (792) |  |
Cumulative coupon payments under perpetual debentures (note 22.4) | (1,070) | (1,059) |  |
Treasury shares repurchased under share repurchase program (note 22.1) | 0 | (83) | $ (50) |
Cumulative coupon payments under subordinated notes1 | (30) | 0 |  |
Treasury shares held by subsidiaries | (14) | (11) |  | $ (83)
Other equity reserves | $ (2,365) | $ (2,453) |  |

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