COMMON STOCK (Details)		1 Months Ended								2 Months Ended	12 Months Ended
	Mar. 15, 2017 USD ($) $ / shares shares	Feb. 28, 2019 $ / shares	Nov. 30, 2018 $ / shares	Aug. 31, 2018 $ / shares	Nov. 30, 2017 $ / shares	Aug. 31, 2017 $ / shares	May 31, 2017 $ / shares	Nov. 30, 2016 $ / shares	Aug. 31, 2016 $ / shares	Mar. 01, 2019 USD ($) shares	Dec. 31, 2018 USD ($) vote $ / shares shares	Dec. 31, 2017 $ / shares	Dec. 31, 2016 $ / shares	Aug. 09, 2018 USD ($)	Sep. 06, 2016 USD ($)
Common Stock
Quarterly dividend declared (in dollars per share) | $ / shares			$ 0.20	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.18
Dividends paid per share (USD per share) | $ / shares											$ 0.74	$ 0.72
Share repurchase program, authorized amount															$ 150,000,000.0
Additional authorized repurchase amount														$ 1,000,000,000.0
Subsequent Event
Common Stock
Quarterly dividend declared (in dollars per share) | $ / shares		$ 0.20
Number of shares repurchased (in shares) | shares										3,500,000
Value of shares repurchased, gross										$ 105,000,000.0
Total remaining authorization amount										$ 763,100,000
Class A Common Stock
Common Stock
Number of votes holders of common stock are entitled for each share held | vote											1
Quarterly dividend declared (in dollars per share) | $ / shares											$ 0.74	0.72	$ 0.71
Dividends paid per share (USD per share) | $ / shares											$ 0.74	0.72	0.71
Number of shares repurchased (in shares) | shares											7,800,000
Value of shares repurchased, gross											$ 220,900,000
Total remaining authorization amount											$ 868,000,000.0
Class B Common Stock
Common Stock
Number of votes holders of common stock are entitled for each share held | vote											10
Number of Class B shares converted into Class A Common stock (in shares) | shares											0
Quarterly dividend declared (in dollars per share) | $ / shares											$ 0.74	0.72	0.71
Dividends paid per share (USD per share) | $ / shares											$ 0.74	$ 0.72	$ 0.71
Senior Notes | 6.125% Senior Unsecured Notes due 2022
Common Stock
Interest rate (as a percent)											6.13%	6.125%
Senior Notes | 5.875% Senior Unsecured Notes due 2026
Common Stock
Interest rate (as a percent)											5.88%	5.875%
Senior Notes | 5.375% Senior Unsecured Notes due 2021
Common Stock
Interest rate (as a percent)											5.38%	5.375%
Senior Notes | 5.125% Senior Unsecured Notes due 2027
Common Stock
Interest rate (as a percent)											5.13%	5.125%
Senior Notes | 5.625% Senior Unsecured Notes. due 2024
Common Stock
Interest rate (as a percent)												5.625%
Bank Credit Agreement | First Lien Indebtedness Ratio, 3.75 | Maximum
Common Stock
Unrestricted cash first lien indebtedness ratio											3.75
Bank Credit Agreement | First Lien Indebtedness Ratio, 3.75-4.25
Common Stock
Unrestricted cash first lien indebtedness ratio											4.25
Amount of unrestricted annual cash payments (up to)											$ 200,000,000.0
Amount of unrestricted annual cash payments to be carry over to next year											50,000,000.0
Additional aggregate basket (up to)											250,000,000.0
Aggregate basket as long as no Event											$ 50,000,000.0
Public Offering | Class A Common Stock
Common Stock
Number of shares issued in public offering (in shares) | shares	12,000,000.0
Price per share in public offering (in dollars per share) | $ / shares	$ 42.00
Net proceeds from public offering	$ 487,900,000