Share-Based Compensation - Schedule of Share-Based Compensation Arrangement by Share Based Payment Award Options Outstanding (Detail) shares in Millions	9 Months Ended
	Mar. 31, 2020 $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Options outstanding at beginning of period, Number of shares | shares	5.5
Options exercised, Number of shares | shares	(0.4)
Options canceled or expired, Number of shares | shares	(0.3)
Options outstanding at end of year, Number of shares | shares	4.8
Options exercisable at end of period, Number of shares | shares	4.8
Options outstanding at beginning of period, Weighted average exercise price | $ / shares	$ 24.45
Options exercised, Weighted average exercise price | $ / shares	22.93
Options canceled or expired, Weighted average exercise price | $ / shares	26.78
Options outstanding at end of year, Weighted average exercise price | $ / shares	24.43
Options exercisable at end of period, Weighted average exercise price | $ / shares	$ 24.43