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Income Taxes Components of Income Tax (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Current expense:      
Federal $ 56 $ 0 $ 19
State 44 17 24
Total 100 17 43
Deferred expense (benefit):      
Federal 227 239 246
State (24) (58) (106)
Deferred Foreign Income Tax Expense (Benefit) 0 6 1
Total 203 187 141
Total income tax expense $ 303 $ 204 $ 184