Share Plans - Additional Information (Detail) - Two Thousand Twenty Share and Incentive Plan shares in Millions	3 Months Ended
	Jun. 30, 2024 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)	0.5
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)	0.2
Weighted-average grant date fair value (in dollars per share) | $ / shares	$ 75.70
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)	0.2
Weighted-average grant date fair value of options (in dollars per share) | $ / shares	$ 25.10
Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)	0.1
Weighted-average grant date fair value (in dollars per share) | $ / shares	$ 71.83