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Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Line Items]
Goodwill	$ 1,900	$ 1,900
GM Financial
Goodwill [Line Items]
Goodwill	1,300	1,300
Cruise
Goodwill [Line Items]
Goodwill	$ 573	$ 571

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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