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Income Taxes, Liability for Unrecognized Tax Benefits Presented in Balance Sheet (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Amounts Recognized in Balance Sheets for Uncertain Tax Positions |  |
Other long-term liabilities and Deferred tax liabilities | $ 863 | $ 859
Liability for unrecognized tax benefits presented in our balance sheets | 874 | 931
Income Taxes Payable [Member] |  |
Amounts Recognized in Balance Sheets for Uncertain Tax Positions |  |
Income taxes payable | 1 | 59
Other Long-term Liabilities [Member] |  |
Amounts Recognized in Balance Sheets for Uncertain Tax Positions |  |
Other long-term liabilities and Deferred tax liabilities | 863 | 859
Deferred Tax Liabilities [Member] |  |
Amounts Recognized in Balance Sheets for Uncertain Tax Positions |  |
Other long-term liabilities and Deferred tax liabilities | $ 10 | $ 13

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