Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Fixed maturities, amortized cost, current	$ 25,773	$ 25,879
Fixed maturities, allowance for credit loss, current	21	6
Fixed maturities, amortized cost, noncurrent	1,116	1,049
Fixed maturities, allowance for credit Loss, noncurrent	$ 0	$ 0
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	900,000,000	900,000,000
Common stock, shares issued (in shares)	220,723,898	227,479,695
Common stock, shares outstanding (in shares)	220,723,898	227,479,695