Basis of Presentation - Revenue Recognition (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Contract Acquisition Costs
Deferred contract costs	$ 177	$ 175
Minimum [Member]
Contract Acquisition Costs
Deferred revenue recognition period	1 month
Contract amortization period	5 years
Maximum [Member]
Contract Acquisition Costs
Deferred revenue recognition period	3 months
Contract amortization period	13 years
Deferred Sales Incentives [Member]
Contract Acquisition Costs
Deferred contract costs	$ 132	$ 126