Fair Value Measurements Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt instruments	$ 447	$ 464
Derivatives, Assets	79	98
Derivatives, Liabilities	(142)	(50)
Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	1,573	1,370
Commercial Paper, at Carrying Value	301	225
Available for sale debt instruments	178	262
Available for Sale Securities, Government Agencies	20	1
Investments, Fair Value Disclosure	13	20
Derivatives, Assets	79	98
Total assets	2,164	1,976
Derivatives, Liabilities	(142)	(50)
Total liabilities	(142)	(50)
Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	1,573	1,370
Investments, Fair Value Disclosure	13	20
Total assets	1,586	1,390
Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commercial Paper, at Carrying Value	301	225
Available for sale debt instruments	178	262
Available for Sale Securities, Government Agencies	20	1
Investments, Fair Value Disclosure
Derivatives, Assets	79	98
Total assets	578	586
Derivatives, Liabilities	(142)	(50)
Total liabilities	$ (142)	$ (50)