XML 187 R165.htm IDEA: XBRL DOCUMENT v3.20.4
Segment Information (Reconciliation of DAC VOBA Amortization From Segments to Consolidated) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Amortization of DAC and VOBA, Net of Interest      
Amortization of DAC and VOBA, net of interest $ 1,315 $ 1,324 $ 1,241
Annuities Segment [Member]      
Amortization of DAC and VOBA, Net of Interest      
Amortization of DAC and VOBA, net of interest 387 408 410
Retirement Plan Services Segment [Member]      
Amortization of DAC and VOBA, Net of Interest      
Amortization of DAC and VOBA, net of interest 29 26 28
Life Insurance Segment [Member]      
Amortization of DAC and VOBA, Net of Interest      
Amortization of DAC and VOBA, net of interest 785 779 711
Group Protection Segment [Member]      
Amortization of DAC and VOBA, Net of Interest      
Amortization of DAC and VOBA, net of interest $ 114 $ 111 $ 92