Stockholders' Equity (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Stockholders' Equity and Statutory Accounting Practices [Abstract]
Treasury stock repurchased during the period (in shares)	755,000	700,000
Treasury stock repurchased during the period	$ 36	$ 34
Common stock issued to settle awards	681,938	483,357