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Income Taxes - Components of Income Tax Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Current Expense (Benefit):      
Federal $ 4,025 $ 2,355 $ 2,824
State 961 669 836
Foreign 207 343 254
Current income tax (benefit) expenses 5,193 3,367 3,914
Deferred Expense (Benefit):      
Federal (281) 1,504 (111)
State (483) 255 (71)
Foreign (70) 133 (368)
Current income tax (benefit) expense (834) 1,892 (550)
Income tax expense (benefit) $ 4,359 $ 5,259 $ 3,364