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Income Taxes - Provisions For Income Taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Current:      
Federal $ 553 $ 307 $ 356
State 136 68 83
Total current taxes 689 375 439
Deferred:      
Federal 186 111 280
State (2) 31 50
Total deferred taxes 184 142 330
Income taxes $ 873 $ 517 $ 769