Amount of accumulated undistributed earnings (deficit).

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Name:	us-gaap_RetainedEarningsAccumulatedDeficit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Basis of Presentation and Accounting Policies (Details) - USD ($) $ in Millions	Sep. 30, 2024	Jan. 01, 2024	Dec. 31, 2023
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Retained earnings	$ 4,304		$ 3,964
Accounting Standards Update 2023-02
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Retained earnings		$ 8