Equity and Accumulated Other Comprehensive Income (Loss)-Minimum Pension Liability (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Equity [Abstract]
Net investment hedge	$ (56)	$ 3	$ 12
Long term inter-company loans	39	(9)	(13)
Translation adjustments	72	(25)	(16)
Total foreign currency translation adjustments, pretax	55	(31)	(17)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	(12)	0	2
Total foreign currency translation adjustments, net of tax		(31)	(19)
Net Derivative and Hedge (gain)/loss arising during the year	4	(4)	0
Derivative and Hedge, (Income) Loss	1	(1)	0
Other Comprehensive Income, Debt Securities, Derivative and Hedge, Gain (Loss), after Adjustment and Tax	3	(3)	0
Net gain/(loss) arising during the year	0	4	(13)
Pension liability tax	0	2	(4)
Net change in minimum pension liability, net of tax	0	2	(9)
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax	(1)	0	0
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	0	0	0
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	$ (1)	$ 0	$ 0