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Income Taxes - Deferred Tax Asset of U.S. Consolidated Federal Income Tax Group (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]      
Unrecognized tax benefits, if recognized would favorably affect the effective tax rate $ 1,200 $ 1,100 $ 2,300
Unrecognized tax benefits, interest and penalties accrued 63 69 286
Unrecognized tax benefits, interest net of the federal (benefit) expense and penalties $ (2) $ (207) $ 128