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Acquisition and Disposition - Financial results from discontinued operations (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Costs and expenses |  |
Income tax expense (benefit) | $ 370 | $ 82
Loss from discontinued operations, net of tax | (3,793) | (288)
Loss from discontinued operations, net of tax | (3,793) | (288)
Discontinued Operations, Held-for-sale |  |
Revenues |  |
Life premiums and contract charges | 340 | 335
Net investment income | 439 | 175
Realized capital gains (losses) | 79 | (300)
Total revenues | 858 | 210
Costs and expenses |  |
Life contract benefits | 410 | 360
Interest credited to contractholder funds | 85 | 123
Amortization of DAC | 36 | 36
Operating costs and expenses | 55 | 61
Restructuring and related charges | 19 | 1
Total costs and expenses | 605 | 581
Amortization of deferred gain on reinsurance | 2 | 1
Income (loss) from discontinued operations before income tax expense | 255 | (370)
Income tax expense (benefit) | 50 | (82)
Loss from discontinued operations, net of tax | 205 | (288)
Loss on disposition of operations | (4,418) | 0
Income tax benefit | (420) | 0
Loss on disposition, net of tax | (3,998) | 0
Loss from discontinued operations, net of tax | $ 205 | $ (288)

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