Supplemental Financial Statement Information - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 13,152	$ 9,420	$ 12,028	$ 8,074
Other comprehensive income (loss), net of tax	55	(37)	(3)	(37)
Ending balance	15,593	10,125	15,593	10,125
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(479)	(443)	(421)	(443)
Other comprehensive income (loss) before reclassifications			(3)	(177)
Amounts reclassified from accumulated other comprehensive income (loss)			0	140
Other comprehensive income (loss), net of tax			(3)	(37)
Ending balance	(424)	(480)	(424)	(480)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(426)	(443)
Other comprehensive income (loss) before reclassifications			(22)	(175)
Amounts reclassified from accumulated other comprehensive income (loss)			0	140
Other comprehensive income (loss), net of tax			(22)	(35)
Ending balance	(448)	(478)	(448)	(478)
Unrealized Gains (Losses) on Available-for-Sale Securities, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			5	0
Other comprehensive income (loss) before reclassifications			19	(2)
Amounts reclassified from accumulated other comprehensive income (loss)			0	0
Other comprehensive income (loss), net of tax			19	(2)
Ending balance	$ 24	$ (2)	$ 24	$ (2)