Variable Interest Entities (Narrative) (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Total liabilities	$ 725,836,000,000	$ 705,461,000,000
Unconsolidated VIEs
Variable Interest Entity [Line Items]
Total liabilities	0
Unconsolidated VIEs \| Fixed maturities, available-for-sale, Fixed maturities, trading, Equity securities and Other invested assets
Variable Interest Entity [Line Items]
Maximum exposure to loss on these investments	1,523,000,000	1,529,000,000
Unconsolidated VIEs \| Other invested assets
Variable Interest Entity [Line Items]
Maximum exposure to loss on these investments	$ 21,137,000,000	$ 21,847,000,000

Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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