Closed Block (Liabilities and Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Closed Block Liabilities
Future policy benefits	$ 37,385	$ 38,046
Other policy-related balances	257	290
Policyholder dividends payable	219	253
Policyholder dividend obligation	0	1,682	$ 2,969
Deferred income tax liability	0	210
Other liabilities	444	263
Total closed block liabilities	38,305	40,744
Assets Designated to the Closed Block
Fixed maturity securities available-for-sale, at estimated fair value	19,515	25,669
Equity securities, at estimated fair value	14	21
Mortgage loans	6,624	6,417
Policy loans	4,096	4,191
Real estate and real estate joint ventures	604	565
Other invested assets	910	535
Total investments	31,763	37,398
Cash and cash equivalents	344	126
Accrued investment income	386	384
Premiums, reinsurance and other receivables	38	50
Current income tax recoverable	82	81
Deferred income tax asset	460	0
Total assets designated to the closed block	33,073	38,039
Excess of closed block liabilities over assets designated to the closed block	5,232	2,705
AOCI:
Unrealized investment gains (losses), net of income tax	(1,609)	2,562
Unrealized gains (losses) on derivatives, net of income tax	408	107
Allocated to policyholder dividend obligation, net of income tax	0	(1,329)
Total amounts included in AOCI	(1,201)	1,340
Maximum future earnings to be recognized from closed block assets and liabilities	$ 4,031	$ 4,045