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Income Taxes- Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Line Items] |  |  |
Charges & credits | $ 65 | $ 12,515 | $ 12,901
Deferred tax assets, valuation allowances relating to net operating losses in certain countries | 133 | 127 |
Deferred tax assets operating loss indefinite carryforwards amount | 390 |  |
Net operating losses | 427 | 421 |
Accrued interest and penalties | $ 164 | 184 | 188
Minimum |  |  |
Income Tax Disclosure [Line Items] |  |  |
Deferred tax assets operating loss carryforwards expiration year | 2030 |  |
Maximum |  |  |
Income Tax Disclosure [Line Items] |  |  |
Deferred tax assets operating loss carryforwards expiration year | 2040 |  |
Domestic Country |  |  |
Income Tax Disclosure [Line Items] |  |  |
Charges & credits | $ 75 | 3,961 | 8,769
Foreign Country |  |  |
Income Tax Disclosure [Line Items] |  |  |
Charges & credits | $ 10 | $ 8,554 | $ 4,132

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