Shareholders' Equity (Schedule of the changes in the balance in accumulated other comprehensive loss by component and in total) (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss at beginning of period	$ (23)
Other comprehensive loss, net of tax before reclassifications	(45)
Amounts reclassified to earnings	0
Other comprehensive loss, unrealized gain/(loss) on derivatives, net of tax	(1)	$ 0
Total other comprehensive loss, net of tax	(45)
Accumulated other comprehensive loss at end of period	(68)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss at beginning of period	(41)
Other comprehensive loss, net of tax before reclassifications	(44)
Amounts reclassified to earnings	0
Other comprehensive loss, foreign currency translation adjustments net of tax	(44)
Accumulated other comprehensive loss at end of period	(85)
Unrealized Gain/(Loss) on Derivatives, net of tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive loss at beginning of period	18
Other comprehensive loss, net of tax before reclassifications	(1)
Amounts reclassified to earnings	0
Other comprehensive loss, unrealized gain/(loss) on derivatives, net of tax	(1)
Accumulated other comprehensive loss at end of period	$ 17