Revenue Recognition Accounting Policy (Details 3) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue	$ 426	$ 421
Less than 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Expected to be Recognized	69
1 - 2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Expected to be Recognized	63
2 - 3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Expected to be Recognized	58
3 - 4 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Expected to be Recognized	51
4 - 5 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Expected to be Recognized	45
Thereafter
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Expected to be Recognized	$ 140