Variable Annuity and Insurance Guarantees - VA Guarantees (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
GMDB
Information related to variable annuity guarantees
Total contract value	$ 80,320	$ 87,246
Contract value in separate accounts	75,399	82,287
Net amount at risk	$ 496	$ 64
Weighted average attained age	69 years	69 years
GMDB | Return of premium
Information related to variable annuity guarantees
Total contract value	$ 64,309	$ 70,020
Contract value in separate accounts	62,458	68,145
Net amount at risk	$ 122	$ 6
Weighted average attained age	69 years	69 years
GMDB | Five/six-year reset
Information related to variable annuity guarantees
Total contract value	$ 7,814	$ 8,309
Contract value in separate accounts	5,125	5,612
Net amount at risk	$ 40	$ 6
Weighted average attained age	69 years	68 years
GMDB | One-year ratchet
Information related to variable annuity guarantees
Total contract value	$ 5,689	$ 6,177
Contract value in separate accounts	5,375	5,858
Net amount at risk	$ 222	$ 13
Weighted average attained age	72 years	71 years
GMDB | Five-year ratchet
Information related to variable annuity guarantees
Total contract value	$ 1,318	$ 1,438
Contract value in separate accounts	1,266	1,386
Net amount at risk	$ 13	$ 1
Weighted average attained age	68 years	68 years
GMDB | Other
Information related to variable annuity guarantees
Total contract value	$ 1,190	$ 1,302
Contract value in separate accounts	1,175	1,286
Net amount at risk	$ 99	$ 38
Weighted average attained age	74 years	74 years
GGU death benefit
Information related to variable annuity guarantees
Total contract value	$ 1,173	$ 1,260
Contract value in separate accounts	1,112	1,198
Net amount at risk	$ 164	$ 184
Weighted average attained age	72 years	72 years
GMIB
Information related to variable annuity guarantees
Total contract value	$ 166	$ 184
Contract value in separate accounts	153	170
Net amount at risk	$ 5	$ 4
Weighted average attained age	72 years	71 years
GMWB
Information related to variable annuity guarantees
Total contract value	$ 49,571	$ 54,287
Contract value in separate accounts	49,534	54,229
Net amount at risk	$ 577	$ 188
Weighted average attained age	69 years	69 years
GMWB | GMWB standard benefit
Information related to variable annuity guarantees
Total contract value	$ 1,724	$ 1,900
Contract value in separate accounts	1,719	1,895
Net amount at risk	$ 2	$ 1
Weighted average attained age	75 years	75 years
GMWB | GMWB for life
Information related to variable annuity guarantees
Total contract value	$ 47,847	$ 52,387
Contract value in separate accounts	47,815	52,334
Net amount at risk	$ 575	$ 187
Weighted average attained age	69 years	69 years
GMAB
Information related to variable annuity guarantees
Total contract value	$ 1,771	$ 2,005
Contract value in separate accounts	1,771	2,005
Net amount at risk	$ 3	$ 0
Weighted average attained age	62 years	62 years