Shareholders' Equity (Changes in the Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ (3,212)	$ (2,957)	$ (882)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	12	(16)	(37)
Balance at end of period	(2,634)	(3,212)	(2,957)
Other Comprehensive Income (Loss), Tax	(6)	5
Foreign Currency Translation Adjustments and Other
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(138)	(137)
Other comprehensive loss, before reclassifications	(3)	(1)
Amounts reclassified to earnings	0	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(3)	(1)
Balance at end of period	(141)	(138)	(137)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Noncontrolling Interest
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(29)	(14)
Other comprehensive loss, before reclassifications	13	(7)
Amounts reclassified to earnings	2	(8)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	15	(15)
Balance at end of period	(14)	(29)	(14)
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at end of period	(155)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(167)	(151)	(114)
Other comprehensive loss, before reclassifications	10	(8)
Amounts reclassified to earnings	2	(8)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	12	(16)	(37)
Balance at end of period	$ (155)	$ (167)	$ (151)