Reportable Segments and Revenue Recognition (Remaining Performance Obligation) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Revenue, remaining performance obligation, amount	$ 579	$ 149
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	579	$ 149
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Leases [Abstract]
Revenue, remaining performance obligation, amount	77
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 77
Revenue, remaining performance obligation, expected timing of satisfaction, period	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Leases [Abstract]
Revenue, remaining performance obligation, amount	$ 96
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 96
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Leases [Abstract]
Revenue, remaining performance obligation, amount	$ 71
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 71
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year