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SCHEDULE II - CONDENSED FINANCIAL INFORMATION OF REGISTRANT (Statements of Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Net investment income |  |  |  |  |  |  |  |  |  | $ 5,223 | $ 5,085 | $ 4,990
Other revenues |  |  |  |  |  |  |  |  |  | 604 | 602 | 539
Total revenues |  | $ 4,344 | $ 4,638 | $ 4,310 | $ 3,965 | $ 4,531 | $ 4,264 | $ 4,020 | $ 3,609 | 17,258 | 16,424 | 14,257
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Operating and administrative expenses |  |  |  |  |  |  |  |  |  | 2,210 | 1,953 | 1,766
Total expenses |  | 3,863 | 4,888 | 3,889 | 3,697 | 4,064 | 3,732 | 3,569 | 3,174 | 16,339 | 14,539 | 13,127
Income (loss) before federal income taxes, equity in income (loss) of subsidiaries, less dividends |  |  |  |  |  |  |  |  |  | 919 | 1,885 | 1,130
Federal income tax expense (benefit) |  |  |  |  |  |  |  |  |  | 33 | 244 | (949)
Net income (loss) |  | $ 431 | $ (161) | $ 363 | $ 252 | $ 399 | $ 490 | $ 385 | $ 367 | 886 | 1,641 | 2,079
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Unrealized investment gains (losses) |  |  |  |  |  |  |  |  |  | 5,288 | (3,449) | 1,643
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  | 6 | (9) | 13
Funded status of employee benefit plans |  |  |  |  |  |  |  |  |  | (28) | (7) | 8
Total other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  | 5,266 | (3,465) | 1,664
Comprehensive income (loss) |  |  |  |  |  |  |  |  |  | 6,152 | (1,824) | 3,743
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Dividends from subsidiaries | [1] |  |  |  |  |  |  |  |  | 830 | 1,025 | 1,069
Interest from subsidiaries | [1] |  |  |  |  |  |  |  |  | 158 | 148 | 133
Net investment income |  |  |  |  |  |  |  |  |  | 11 | 7 | 2
Realized gain (loss) |  |  |  |  |  |  |  |  |  | 2 | 3 | (3)
Total revenues |  |  |  |  |  |  |  |  |  | 1,001 | 1,183 | 1,201
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Operating and administrative expenses |  |  |  |  |  |  |  |  |  | 51 | 18 | 40
Interest - subsidiaries | [1] |  |  |  |  |  |  |  |  | 48 | 34 | 21
Interest - other |  |  |  |  |  |  |  |  |  | 311 | 288 | 247
Total expenses |  |  |  |  |  |  |  |  |  | 410 | 340 | 308
Income (loss) before federal income taxes, equity in income (loss) of subsidiaries, less dividends |  |  |  |  |  |  |  |  |  | 591 | 843 | 893
Federal income tax expense (benefit) |  |  |  |  |  |  |  |  |  | (52) | (42) | (20)
Income (loss) before equity in income (loss) of subsidiaries, less dividends |  |  |  |  |  |  |  |  |  | 643 | 885 | 913
Equity in income (loss) of subsidiaries, less dividends | [1] |  |  |  |  |  |  |  |  | 243 | 756 | 1,166
Net income (loss) |  |  |  |  |  |  |  |  |  | 886 | 1,641 | 2,079
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Unrealized investment gains (losses) |  |  |  |  |  |  |  |  |  | 5,288 | (3,449) | 1,643
Foreign currency translation adjustment |  |  |  |  |  |  |  |  |  | 6 | (9) | 13
Funded status of employee benefit plans |  |  |  |  |  |  |  |  |  | (28) | (7) | 8
Total other comprehensive income (loss), net of tax |  |  |  |  |  |  |  |  |  | 5,266 | (3,465) | 1,664
Comprehensive income (loss) |  |  |  |  |  |  |  |  |  | $ 6,152 | $ (1,824) | $ 3,743
[1] | Eliminated in consolidation.

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