Comprehensive Income (Loss) (Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ (7)	$ (13)
Provision for income taxes	(2)	(1)
Net Income	2	5
Amount Reclassified From Accumulated Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Income	(2)	(2)
Unrealized Loss On Derivatives [Member] | Amount Reclassified From Accumulated Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	(3)	(3)
Provision for income taxes	1	1
Net Income	$ (2)	$ (2)