Insurance and Contractholder Liabilities - Unpaid Claims and Claim Expenses - Other Operations - Liability Balance Details (Details) - Other Operations - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Liability for Claims and Claims Adjustment Expense [Line Items]
Unpaid claims and claim expenses	$ 701	$ 728
Unpaid claims and claim expenses			$ 722
International businesses held for sale and our interest in a joint venture in Türkiye
Liability for Claims and Claims Adjustment Expense [Line Items]
Unpaid claims and claim expenses	412	$ 447
Unpaid claims and claim expenses			438	$ 452
Other Operations
Liability for Claims and Claims Adjustment Expense [Line Items]
Unpaid claims and claim expenses	$ 289
Unpaid claims and claim expenses			$ 284