Debt and Other Obligations Extinguishment of Debt (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Extinguishment of Debt [Line Items]
Gains (losses) on retirement of long-term obligations		$ 0	$ (2)	$ 0	$ (28)
3.150% Senior Notes [Member]
Extinguishment of Debt [Line Items]
Principal amount				750
Cash paid	[1]			750
Gains (losses) on retirement of long-term obligations				$ 0

[1] Exclusive of accrued interest.