Investments - Variable Interest Entity (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Variable Interest Entity
Total Assets	$ 22,367.9	$ 22,738.4
Total Liabilities	12,002.6	12,195.7
RMMC/RMBC
Variable Interest Entity
Total Assets	221.1	232.0
Total Liabilities	$ 20.3	$ 18.6

Amount of asset recognized for present right to economic benefit.

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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