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Income Taxes Reconciliation of Income Tax Satutory Rate (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income tax expense at United States statutory rate $ 1,175 $ 1,275 $ 1,443
Increase (reduction) in income taxes resulting from:      
Partnership earnings not subject to tax (884) (1,086) (1,211)
Noncontrolling interests 0 26 0
State tax, net of federal tax benefit 47 19 85
Statutory rate change (10) (42) (46)
Valuation allowance (3) (4) (63)
Uncertain tax positions (14) (3) (34)
Dividend received deduction (3) (3) (4)
Foreign taxes 0 6 1
Other (5) 16 13
Income tax expense $ 303 $ 204 $ 184