Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Finite-lived intangible assets
Finite-lived intangible assets, amortization expense	$ 2	$ 2	$ 4
Approximate amortization expense for finite-lived intangible assets - 2025	2
Approximate amortization expense for finite-lived intangible assets - 2026	2
Approximate amortization expense for finite-lived intangible assets - 2027	2
Approximate amortization expense for finite-lived intangible assets - 2028	2
Approximate amortization expense for finite-lived intangible assets - 2029	$ 2

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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