Investments - Variable Interest Entity (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Variable Interest Entity
Total Assets	$ 24,359.0	$ 22,738.4
Total Liabilities	13,950.3	12,195.7
RMMC/RMBC
Variable Interest Entity
Total Assets	223.4	232.0
Total Liabilities	$ 19.4	$ 18.6

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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