Severance (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Apr. 30, 2024	Dec. 31, 2025	Dec. 31, 2024
Severance [Roll Forward]
Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag		true
Severance
Severance [Roll Forward]
Balance at beginning of period		$ 4	$ 1
Accrued to expense		14	32
Payments, net		(7)	(29)
Balance at end of period		$ 11	$ 4
Severance | Workforce Reduction
Restructuring Cost and Reserve [Line Items]
Percentage of workforce eliminated	3.00%
Restructuring costs	$ 25