Shareholders' Equity (Changes in the Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period	$ 1,002	$ 1,975	$ 1,794	$ 1,792
Total other comprehensive income/(loss), net of tax	8	5	(43)	56
Balance at end of period	(693)	1,794	(693)	1,794
Foreign Currency Translation Adjustments
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period			(46)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			(47)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			0
Total other comprehensive income/(loss), net of tax			(47)
Balance at end of period	(93)		(93)
Unrealized Gain/(Loss) on Derivatives, net of tax
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period			12
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			9
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			(5)
Total other comprehensive income/(loss), net of tax			4
Balance at end of period	16		16
Accumulated Other Comprehensive Loss
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period			(34)
Total other comprehensive income/(loss), net of tax			(43)
Balance at end of period	(77)		(77)
AOCI Attributable to Parent
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period	(85)	(53)	(34)	(104)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			(38)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			(5)
Balance at end of period	$ (77)	$ (48)	$ (77)	$ (48)