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Parent Company Financial Information - Statements of Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Dividend income: |  |  |
Other income (loss) | $ 68 | $ 74 | $ 78
Provision (provision credit) for credit losses | (310) | 503 | 45
Interest on term borrowings | 72 | 64 | 53
Personnel expense | 1,210 | 1,033 | 695
Income before income taxes | 1,284 | 933 | 586
Income tax benefit | 274 | 76 | 134
Equity in undistributed net income (loss) of subsidiaries: |  |  |
Net income attributable to controlling interest | 999 | 845 | 441
Parent Company |  |  |
Dividend income: |  |  |
Bank | 770 | 180 | 345
Non-bank | 0 | 0 | 1
Total dividend income | 770 | 180 | 346
Other income (loss) | (26) | 0 | 1
Total income | 744 | 180 | 347
Provision (provision credit) for credit losses | 0 | 0 | (1)
Interest on term borrowings | 31 | 39 | 31
Personnel expense | 89 | 54 | 53
Total expense | 120 | 93 | 83
Income before income taxes | 624 | 87 | 264
Income tax benefit | (35) | (18) | (19)
Income before equity in undistributed net income of subsidiaries | 659 | 105 | 283
Equity in undistributed net income (loss) of subsidiaries: |  |  |
Bank | 332 | 736 | 160
Non-bank | 8 | 4 | (2)
Net income attributable to controlling interest | $ 999 | $ 845 | $ 441

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