Property, Plant, and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Property, Plant, and Equipment [Line Items]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	$ 292	$ 227
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization	142	123
Property and equipment, net	150	104
Land
Property, Plant, and Equipment [Line Items]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	17	7
Building
Property, Plant, and Equipment [Line Items]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	51	26
Building Improvements
Property, Plant, and Equipment [Line Items]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	2	2
Leaseholds and Leasehold Improvements
Property, Plant, and Equipment [Line Items]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	2	2
Computer Equipment
Property, Plant, and Equipment [Line Items]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	176	166
Furniture and Fixtures
Property, Plant, and Equipment [Line Items]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	11	9
Construction in Progress
Property, Plant, and Equipment [Line Items]
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization	$ 33	$ 15