Segment Information - Schedule of Total Assets by Segment (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Segment Reporting [Line Items]
Total assets	$ 4,374	$ 4,486
Operating Segments \| ASC
Segment Reporting [Line Items]
Total assets	2,643	2,451
Operating Segments \| IMS
Segment Reporting [Line Items]
Total assets	1,295	1,300
Corporate & Eliminations
Segment Reporting [Line Items]
Total assets	$ 436	$ 735

Amount of asset recognized for present right to economic benefit.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details