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Income Taxes - Income Taxes Included in Income Statement (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Currently payable: |  |  |
Federal | $ 241,000,000 | $ 184,000,000 | $ 334,000,000
State | 20,000,000 | 62,000,000 | 0
Total currently payable | 261,000,000 | 246,000,000 | 334,000,000
Deferred: |  |  |
Federal | 34,000,000 | 117,000,000 | 274,000,000
State | 19,000,000 | (19,000,000) | 29,000,000
Total deferred | 53,000,000 | 98,000,000 | 303,000,000
Total income tax expense (benefit) | 314,000,000 | 344,000,000 | 637,000,000
Income tax (benefit) expense on securities transactions | 5,000,000 | 0 |
Equity and gross receipts based taxes assessed in lieu of income tax recorded in noninterest expense | $ 23,000,000 | $ 15,000,000 | $ 22,000,000

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