Investments - Variable Interest Entity (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Variable Interest Entity
Total Assets	$ 26,826.7	$ 26,064.3
Total Liabilities	13,030.0	12,611.6
RMMC/RMBC
Variable Interest Entity
Total Assets	235.9	230.3
Total Liabilities	$ 17.8	$ 29.8

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