Variable Annuity and Insurance Guarantees - Separate Account Balances by Type (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Mutual funds
Variable Annuity and Insurance Guarantees
Separate account balances	$ 75,589	$ 82,497
Equity
Variable Annuity and Insurance Guarantees
Separate account balances	46,511	49,183
Bond
Variable Annuity and Insurance Guarantees
Separate account balances	21,640	24,998
Other
Variable Annuity and Insurance Guarantees
Separate account balances	$ 7,438	$ 8,316

Fair value amount of the specified investment category of assets maintained in separate accounts as of the balance sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 80
-Section 50
-Paragraph 1
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=124508989&loc=d3e19393-158473

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=124504833&loc=d3e7104-158389

Name:	us-gaap_ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant