Revenue Recognition - Additional Information - Customer Receivables and Contract Balances (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jan. 01, 2022	Dec. 31, 2021	Jan. 01, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue recognized from prior year contract liability	$ 14	$ 12	$ 178	$ 187
Contract liabilities	$ 341		$ 341		$ 317	$ 317	$ 300
Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract term			1 year
Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract term			5 years
Weighted Average | Mass Markets Customers, Average Contract Life
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Length of customer life			32 months
Weighted Average | Business Customer, Average Contract Life
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Length of customer life			30 months