Acquisitions and Dispositions - Major classes of assets and liabilities to be transferred to buyer (Details) - Discontinued Operations, Held-for-sale $ in Millions	Dec. 31, 2021 USD ($)
Assets
Fixed income securities, at fair value	$ 26,425
Equity securities, at fair value	11
Mortgage loans, net	2,662
Limited partnership interests	1,624
Short-term, at fair value	643
Other investments, net	690
Total investments	32,055
Cash	1,081
Deferred policy acquisitions costs	996
Reinsurance recoverables, net	1,979
Accrued investment income	240
Other assets	536
Separate accounts	3,465
Total assets	40,352
Liabilities
Reserve for future policy benefits	11,573
Contractholder funds	15,880
Deferred income taxes	834
Other liabilities and accrued expenses	452
Separate accounts	3,465
Total liabilities	$ 32,204