Other Financial Information (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid expenses	$ 140	$ 109
Contract assets	28	28
Other	14	9
Total other current assets	276	239
Other current assets	83	81
Fulfillment Costs (1)
Prepaid Expense and Other Assets, Current [Abstract]
Contract costs	49	48
Acquisition Costs
Prepaid Expense and Other Assets, Current [Abstract]
Contract costs	$ 45	$ 45