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Share-Based Compensation - Schedule of Share-Based Compensation Arrangement by Share Based Payment Award Options Outstanding and Options Exercisable (Detail)
shares in Millions
12 Months Ended
Jun. 30, 2019
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number outstanding at June 30,2019, Options outstanding | shares 5.5
Weighted average remaining contractual life (years), Options outstanding 2 years 3 months 10 days
Weighted average exercise price, Options outstanding $ 24.45
Number exercisable at June 30, 2019, Options exercisable | shares 5.5
Weighted average exercise price, Options exercisable $ 24.45
$ 14.88 - 21.29 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Range of exercise prices, minimum 14.88
Range of exercise prices, maximum $ 21.29
Number outstanding at June 30,2019, Options outstanding | shares 1.4
Weighted average remaining contractual life (years), Options outstanding 1 year 11 months 15 days
Weighted average exercise price, Options outstanding $ 18.84
Number exercisable at June 30, 2019, Options exercisable | shares 1.4
Weighted average exercise price, Options exercisable $ 18.50
$ 21.66 - 25.39 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Range of exercise prices, minimum 21.66
Range of exercise prices, maximum $ 25.39
Number outstanding at June 30,2019, Options outstanding | shares 0.8
Weighted average remaining contractual life (years), Options outstanding 1 year 9 months 7 days
Weighted average exercise price, Options outstanding $ 23.80
Number exercisable at June 30, 2019, Options exercisable | shares 0.8
Weighted average exercise price, Options exercisable $ 23.80
$ 26.49 - 26.49 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Range of exercise prices, minimum 26.49
Range of exercise prices, maximum $ 26.49
Number outstanding at June 30,2019, Options outstanding | shares 1.5
Weighted average remaining contractual life (years), Options outstanding 2 years 2 months 15 days
Weighted average exercise price, Options outstanding $ 26.49
Number exercisable at June 30, 2019, Options exercisable | shares 1.5
Weighted average exercise price, Options exercisable $ 26.49
$ 27.07 - 36.55 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Range of exercise prices, minimum 27.07
Range of exercise prices, maximum $ 36.55
Number outstanding at June 30,2019, Options outstanding | shares 1.8
Weighted average remaining contractual life (years), Options outstanding 2 years 9 months 25 days
Weighted average exercise price, Options outstanding $ 27.56
Number exercisable at June 30, 2019, Options exercisable | shares 1.8
Weighted average exercise price, Options exercisable $ 27.56