Fair Value Measurements - Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate notes	$ 505	$ 499
Derivatives	122	122
Derivatives	(29)	(58)
Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	3,232	1,514
Commercial paper	205	291
Corporate notes	296	183
U.S. and local government agencies	17	25
Other equity investments	36	44
Derivatives	122	122
Total assets	3,908	2,179
Derivatives	(29)	(58)
Total liabilities	(29)	(58)
Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	3,232	1,514
Other equity investments	36	44
Total assets	3,268	1,558
Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commercial paper	205	291
Corporate notes	296	183
U.S. and local government agencies	17	25
Derivatives	122	122
Total assets	640	621
Derivatives	(29)	(58)
Total liabilities	$ (29)	$ (58)