COMMON STOCK AND TREASURY STOCK - Repurchase Programs (Detail) - USD ($)	3 Months Ended						9 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2020	Nov. 06, 2019
Equity, Class of Treasury Stock [Line Items]
Total Aggregate Amount Paid	$ 148,400,000	$ 119,572,000	$ 416,219,000	$ 8,999,000	$ 206,315,000	$ 112,764,000
Common Stock
Equity, Class of Treasury Stock [Line Items]
Total Number of Shares Purchased as Part of Publicly Announced Programs (in shares)	1,112,606	995,495	3,635,534	91,249	2,287,975	1,238,163
Total Aggregate Amount Paid	$ 1,000	$ 1,000	$ 3,000	$ 0	$ 2,000	$ 1,000
Common Stock | November 2018 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Amount of Publicly Announced Program	200,000,000						$ 200,000,000
Total Number of Shares Purchased as Part of Publicly Announced Programs (in shares)							293,709
Average Price Paid per Share (in usd per share)							$ 121.9
Total Aggregate Amount Paid							$ 35,800,000
Estimated Remaining Balance Available for Share Repurchases under the Program	0						0
Common Stock | August 2019 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Amount of Publicly Announced Program	500,000,000						$ 500,000,000
Total Number of Shares Purchased as Part of Publicly Announced Programs (in shares)							4,337,320
Average Price Paid per Share (in usd per share)							$ 115.3
Total Aggregate Amount Paid							$ 500,000,000.0
Estimated Remaining Balance Available for Share Repurchases under the Program	0						0
Common Stock | November 2019 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Amount of Publicly Announced Program	200,000,000						$ 200,000,000	$ 200,000,000
Total Number of Shares Purchased as Part of Publicly Announced Programs (in shares)							1,112,606
Average Price Paid per Share (in usd per share)							$ 133.4
Total Aggregate Amount Paid							$ 148,400,000
Estimated Remaining Balance Available for Share Repurchases under the Program	$ 51,600,000						$ 51,600,000