Stock Incentive Plans - Stock appreciation rights activity (Details) - Stock Appreciation Rights (SARs) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2023 USD ($) $ / shares shares
Number of Shares
Beginning balance, outstanding (in shares) | shares	4,099,144
Granted (in shares) | shares	605,135
Exercised (in shares) | shares	(800,815)
Canceled (in shares) | shares	(30,035)
Ending balance, outstanding (in shares) | shares	3,873,429
Exercisable (in shares) | shares	2,737,336
Weighted-Average Exercise Price
Beginning balance, outstanding (in USD per share) | $ / shares	$ 172.27
Granted (in USD per share) | $ / shares	298.26
Exercised (in USD per share) | $ / shares	134.38
Canceled (in USD per share) | $ / shares	263.62
Ending balance, outstanding (in USD per share) | $ / shares	199.08
Exercisable (in USD per share) | $ / shares	$ 165.45
Weighted Average Remaining Contractual Term and Aggregate Intrinsic Value
Outstanding, weighted average remaining contractual term	6 years
Exercisable, weighted average remaining contractual term	5 years
Outstanding, aggregate intrinsic value | $	$ 739.7
Exercisable, aggregate intrinsic value | $	$ 614.8