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DERIVATIVES - DERIVATIVES WITH MASTER NETTING ARRANGEMENTS (Details) - Fixed indexed call options - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Derivative [Line Items]
Gross amounts recognized	$ 195.2	$ 323.5
Gross amounts offset in the balance sheet	0.0	0.0
Net amounts of assets presented in the balance sheet	195.2	323.5
Non-cash collateral	19.4	43.5
Cash collateral received	0.0	0.0
Net amount	$ 175.8	$ 280.0

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