NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Share Repurchase Program (Details) - USD ($)	1 Months Ended	3 Months Ended
	May 08, 2020	Mar. 31, 2020	Aug. 09, 2018	Sep. 06, 2016
Class of Stock [Line Items]
Stock repurchase program, authorized amount				$ 150,000,000
Stock repurchase program, additional authorized repurchase amount			$ 1,000,000,000
Stock repurchase program, remaining authorized repurchase amount		$ 547,000,000
Class A Common Stock
Class of Stock [Line Items]
Treasury stock, shares acquired (in shares)		10,000,000
Treasury stock, value acquired		$ 176,000,000
Subsequent Event | Class A Common Stock
Class of Stock [Line Items]
Treasury stock, shares acquired (in shares)	3,100,000
Treasury stock, value acquired	$ 47,000,000