Share-Based Compensation - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Number of Awards
Exercised (in shares)	(11,871)	(117,049)	(96,514)
Stock options
Number of Awards
Balance at the beginning of the period (in shares)	2,149,541	2,126,289	2,223,261
Granted (in shares)	67,142	167,926	124,977
Exercised (in shares)	(11,871)	(117,049)	(96,514)
Forfeited (in shares)	(59,330)	(27,017)	(125,435)
Expired (in shares)	(69,729)	(608)
Balance at the end of the period (in shares)	2,075,753	2,149,541	2,126,289
Exercisable (in shares)	1,909,305
Weighted Average Exercise Price
Balance at the beginning of the period (in dollars per share)	$ 44.50	$ 44.06	$ 42.88
Granted (in dollars per share)	18.26	44.75	57.92
Exercised (in dollars per share)	38.68	36.37	39.93
Forfeited (in dollars per share)	44.91	46.62	40.17
Expired (in dollars per share)	50.64	30.69
Balance at the end of the period (in dollars per share)	43.47	$ 44.50	$ 44.06
Exercisable (in dollars per share)	$ 44.15
Weighted Average Remaining Contractual Term
Outstanding	4 years 8 months 12 days
Exercisable	4 years 4 months 24 days
Aggregate Intrinsic Value ($ in millions)
Outstanding	$ 2,713,698.0
Exercisable	$ 1,239,260.0