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Short and Long-Term Debt Repurchases of Unsecured Notes (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2023
Debt Instrument [Line Items]
Repurchases and redemption of Senior Notes		$ (19)	$ (688)
5.75% Senior Notes and 5.25% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Principal Amount of Debt Repurchased	$ 26
5.75% Senior Notes and 5.25% Senior Notes | Senior Notes | Funds Managed by Limited Partnership
Debt Instrument [Line Items]
Principal Amount of Debt Repurchased	$ 24

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