XML 115 R96.htm IDEA: XBRL DOCUMENT v3.24.0.1
Income Taxes - Uncertain Tax Positions (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Unrecognized Tax Benefits [Roll Forward]      
Balance at beginning of period $ 520 $ 634 $ 1,086
Additions to current year tax positions 45 12 22
Additions to prior years' tax positions 72 14 46
Reductions to prior years' tax positions (15) (98) (473)
Reductions in tax positions due to lapse of statutory limitations (19) (20) (17)
Settlements (18) (10) (26)
Other 0 (12) (4)
Balance at end of period 585 520 $ 634
Unrecognized tax benefit that would favorably affect effective tax rate $ 386 $ 356