Letters of Credit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Line of Credit Facility [Abstract]
Amount outstanding at period end	$ 145	$ 75
Line of Credit Facility [Line Items]
Amount outstanding at period end	145	75
Letter of Credit
Line of Credit Facility [Abstract]
Amount outstanding at period end	0	0
Line of Credit Facility [Line Items]
Amount outstanding at period end	$ 0	$ 0
Letter of Credit
Line of Credit Facility [Abstract]
Line of Credit Facility, Expiration Period	1 year
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Period	1 year