Shareholders' Equity (Changes in the Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period	$ 1,794	$ 1,792
Total other comprehensive income/(loss), net of tax	(27)	17
Balance at end of period	1,396	1,425
Foreign Currency Translation Adjustments
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period	(46)
Other comprehensive loss, before reclassifications	(25)
Amounts reclassified to earnings	0
Total other comprehensive income/(loss), net of tax	(25)
Balance at end of period	(71)
Unrealized Gain/(Loss) on Derivatives, net of tax
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period	12
Other comprehensive loss, before reclassifications	(1)
Amounts reclassified to earnings	(1)
Total other comprehensive income/(loss), net of tax	(2)
Balance at end of period	10
Accumulated Other Comprehensive Loss
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period	(34)
Total other comprehensive income/(loss), net of tax	(27)
Balance at end of period	(61)
AOCI Attributable to Parent
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period	(34)	(104)
Other comprehensive loss, before reclassifications	(26)
Amounts reclassified to earnings	(1)
Balance at end of period	$ (61)	$ (87)