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Segment Information (Reconciliation of DAC VOBA Amortization From Segments to Consolidated) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | $ 1,324 | $ 1,241 | $ 976
Annuities Segment [Member] |  |  |
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | 408 | 410 | 401
Retirement Plan Services Segment [Member] |  |  |
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | 26 | 28 | 27
Life Insurance Segment [Member] |  |  |
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | 779 | 711 | 469
Group Protection Segment [Member] |  |  |
Amortization of DAC and VOBA, Net of Interest |  |  |
Amortization of DAC and VOBA, net of interest | $ 111 | $ 92 | $ 79

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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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- Details
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