Assets and Liabilities of Businesses Held for Sale (Details) - USD ($) $ in Millions	Jul. 01, 2022	Jun. 30, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Separate account assets		$ 648	$ 878
Assets of businesses held for sale		9,052	10,057
Insurance and contractholder liabilities		4,427	4,644
Total liabilities of businesses held for sale		5,851	6,423
International life, accident and supplemental benefits businesses | Disposed of by Sale | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale price	$ 5,400
International life, accident and supplemental benefits businesses | Held-for-Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		455	406
Investments		4,518	5,109
Deferred policy acquisition costs		2,598	2,755
Separate account assets		648	878
Goodwill, other intangible assets and all other assets		833	909
Assets of businesses held for sale		9,052	10,057
Insurance and contractholder liabilities		4,427	4,644
Accounts payable, accrued expenses and other liabilities		420	452
Deferred tax liabilities, net		356	449
Separate account liabilities		648	878
Total liabilities of businesses held for sale		5,851	6,423
Gross unrealized appreciation on securities and derivatives		(208)	137
Gross translation loss on foreign currencies		$ 366	$ 209