Investments (Consolidated Variable Interest Entities) (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Total Assets	$ 367,773	$ 369,796
Total Liabilities	353,558	355,362
Variable Interest Entity
Variable Interest Entity [Line Items]
Total Assets	2,228	2,336
Total Liabilities	5	4
Real estate joint ventures \| Variable Interest Entity
Variable Interest Entity [Line Items]
Total Assets	1,972	2,004
Total Liabilities	2	3
Mortgage loans \| Variable Interest Entity
Variable Interest Entity [Line Items]
Total Assets	197	210
Total Liabilities	0	0
Renewable energy partnership \| Variable Interest Entity
Variable Interest Entity [Line Items]
Total Assets	59	57
Total Liabilities	3	0
Investment funds (primarily other invested assets) \| Variable Interest Entity
Variable Interest Entity [Line Items]
Total Assets	0	65
Total Liabilities	$ 0	$ 1

Amount of asset recognized for present right to economic benefit.

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+ Details

- Definition

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.

+ References + Details

METROPOLITAN LIFE INSURANCE CO 10-Q