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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Amount: |  |  |
Federal income tax | $ 139 | $ 665 | $ 526
Taxes on foreign earnings, net of federal benefit | 2 | 139 | 131
Net effects of noncontrolling interests | (13) | (10) | (65)
State income tax, net of federal benefit | 52 | 68 | 46
Dividend received deduction | (27) | (39) | (31)
Adjustments to uncertain tax positions | 3 | (5) | (47)
Nondeductible goodwill | 336 | 108 | 58
General business credit | 0 | 0 | (64)
Federal refunds | (20) | 0 | 0
Other | 9 | 0 | 33
Total | $ 481 | $ 926 | $ 587
Percent: |  |  |
Federal income tax, percent | 21.00% | 21.00% | 21.00%
Taxes on foreign earnings, net of federal benefit, percent | 0.30% | 4.40% | 5.20%
Net effects of noncontrolling interests, percent | (2.00%) | (0.30%) | (2.60%)
State income tax, net of federal benefit, percent | 7.90% | 2.10% | 1.80%
Dividend received deduction, percent | (4.10%) | (1.10%) | (1.20%)
Adjustments to uncertain tax positions, percent | 0.50% | (0.20%) | (1.90%)
Nondeductible goodwill, percent | 50.80% | 3.40% | 2.30%
General business credit, percent | 0.00% | 0.00% | (2.60%)
Federal refunds, percent | (3.00%) | 0.00% | 0.00%
Other, percent | 1.40% | 0.00% | 1.40%
Total, percent | 72.80% | 29.30% | 23.40%

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