Shareholders' Equity (Changes in the Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period			$ 6,571
Other comprehensive income/(loss), before reclassifications			(23)
Amounts reclassified to earnings			3
Total other comprehensive income/(loss), net of tax	$ 35	$ 13	(20)	$ (61)
Balance at end of period	6,665		6,665
Foreign Currency Translation Adjustments
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period			(123)
Other comprehensive income/(loss), before reclassifications			(47)
Amounts reclassified to earnings			0
Total other comprehensive income/(loss), net of tax			(47)
Balance at end of period	(170)		(170)
Unrealized Gain/(Loss) on Derivatives, net of tax
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period			7
Other comprehensive income/(loss), before reclassifications			24
Amounts reclassified to earnings			3
Total other comprehensive income/(loss), net of tax			27
Balance at end of period	34		34
Accumulated Other Comprehensive Loss
AOCI, Net of Tax [Roll Forward]
Balance at beginning of period			(116)
Balance at end of period	$ (136)		$ (136)