Accumulated Other Comprehensive (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 24,779	$ 22,180	$ 20,302
Other comprehensive income (Loss) before taxes	(1)	4
Tax effects	0	0
Other comprehensive income		4
Other comprehensive (loss) income	(1)	4	0
Ending balance	28,090	24,779	22,180
Significant amount reclassified out of AOCI	0	0
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(7)	(11)
Other comprehensive income (Loss) before taxes	(1)	4
Tax effects	0	0
Other comprehensive income		4
Other comprehensive (loss) income	(1)
Ending balance	(8)	(7)	(11)
Other
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1)	(1)
Other comprehensive income (Loss) before taxes	0	0
Tax effects	0	0
Other comprehensive income		0
Other comprehensive (loss) income	0
Ending balance	(1)	(1)	(1)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(8)	(12)	(12)
Other comprehensive (loss) income	(1)	4	0
Ending balance	$ (9)	$ (8)	$ (12)