Shareholders' Equity (Changes in the Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 1,792	$ 6,330	$ 6,059
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	70	(25)	13
Balance at end of period	1,794	1,792	6,330
Foreign Currency Translation Adjustments and other
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(92)	(95)
Other comprehensive income/(loss), net before reclassifications	46	3
Amounts reclassified to earnings	0	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	46	3
Balance at end of period	(46)	(92)	(95)
Unrealized Gain/(Loss) on Derivatives, net of tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(12)	16
Other comprehensive income/(loss), net before reclassifications	22	(23)
Amounts reclassified to earnings	2	(5)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	24	(28)
Balance at end of period	12	(12)	16
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(104)
Balance at end of period	(34)	(104)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(104)	(79)	(92)
Other comprehensive income/(loss), net before reclassifications	68	(20)
Amounts reclassified to earnings	2	(5)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	70	(25)	13
Balance at end of period	$ (34)	$ (104)	$ (79)