Amount of liability for variable contract in which all or portion of contract holder's funds is allocated to specific separate account and supported by assets held in separate account.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Separate Account Liabilities Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025
Separate Account, Liability [Line Items]
Separate account liabilities	$ 156,850	$ 151,933
Latin America \| Pension Plan
Separate Account, Liability [Line Items]
Separate account liabilities	49,713	48,549	$ 43,827
Stable Value and Risk Solutions \| RIS
Separate Account, Liability [Line Items]
Separate account liabilities	38,165	38,925	36,928
Annuities \| RIS
Separate Account, Liability [Line Items]
Separate account liabilities	18,169	18,099	17,838
Annuities \| Corporate And Other
Separate Account, Liability [Line Items]
Separate account liabilities	19,258	19,621	$ 20,317
Insurance, Other
Separate Account, Liability [Line Items]
Separate account liabilities	$ 31,545	$ 26,739