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Segment Information (Reconciliation of DAC VOBA Amortization From Segments to Consolidated) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | $ 1,611 | $ 1,315 | $ 1,324
Annuities Segment [Member] |  |  |
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | 442 | 387 | 408
Retirement Plan Services Segment [Member] |  |  |
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | 32 | 29 | 26
Life Insurance Segment [Member] |  |  |
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | 1,030 | 785 | 779
Group Protection Segment [Member] |  |  |
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | $ 107 | $ 114 | $ 111

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- Definition The amount of deferred policy acquisition costs charged to expense in the period, net of interest, and the amount of the present value of future profits asset that was amortized during the period, net of interest. + References No definition available. + Details
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