FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	Sep. 30, 2019	Aug. 13, 2019	Aug. 02, 2019	Dec. 31, 2018
FAIR VALUE MEASUREMENTS:
Debt discount and deferred financing costs	$ 223			$ 33
Level 2 | Carrying Value | Debt of variable interest entities
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	22			25
Level 2 | Carrying Value | Debt of non-media subsidiaries
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	18			20
Level 2 | Fair Value | Debt of variable interest entities
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	22			25
Level 2 | Fair Value | Debt of non-media subsidiaries
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	$ 18			$ 20
Senior Notes | 6.125% Senior Unsecured Notes due 2022
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)	6.125%
Senior Notes | 5.875% Senior Unsecured Notes due 2026
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)	5.875%
Senior Notes | 5.625% Senior Unsecured Notes due 2024
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)	5.625%
Senior Notes | 5.375% Senior Unsecured Notes due 2021
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)		5.375%		5.375%
Senior Notes | 5.125% Senior Unsecured Notes due 2027
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)	5.125%
Senior Notes | 5.375% Senior Secured Notes due 2026
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)	5.375%		5.375%
Senior Notes | 6.625% Senior Unsecured Notes due 2027
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)	6.625%		6.625%
Senior Notes | Level 2 | Carrying Value | 6.125% Senior Unsecured Notes due 2022
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	$ 500			$ 500
Senior Notes | Level 2 | Carrying Value | 5.875% Senior Unsecured Notes due 2026
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	350			350
Senior Notes | Level 2 | Carrying Value | 5.625% Senior Unsecured Notes due 2024
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	550			550
Senior Notes | Level 2 | Carrying Value | 5.375% Senior Unsecured Notes due 2021
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	0			600
Senior Notes | Level 2 | Carrying Value | 5.125% Senior Unsecured Notes due 2027
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	400			400
Senior Notes | Level 2 | Carrying Value | 5.375% Senior Secured Notes due 2026
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	3,050			0
Senior Notes | Level 2 | Carrying Value | 6.625% Senior Unsecured Notes due 2027
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	1,825			0
Senior Notes | Level 2 | Fair Value | 6.125% Senior Unsecured Notes due 2022
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	510			504
Senior Notes | Level 2 | Fair Value | 5.875% Senior Unsecured Notes due 2026
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	366			326
Senior Notes | Level 2 | Fair Value | 5.625% Senior Unsecured Notes due 2024
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	566			516
Senior Notes | Level 2 | Fair Value | 5.375% Senior Unsecured Notes due 2021
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	0			599
Senior Notes | Level 2 | Fair Value | 5.125% Senior Unsecured Notes due 2027
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	402			353
Senior Notes | Level 2 | Fair Value | 5.375% Senior Secured Notes due 2026
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	3,164			0
Senior Notes | Level 2 | Fair Value | 6.625% Senior Unsecured Notes due 2027
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	1,893			0
Term Loan | Level 2 | Carrying Value | Term Loan A
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	0			96
Term Loan | Level 2 | Carrying Value | Term Loan B
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	1,332			1,343
Term Loan | Level 2 | Carrying Value | Term Loan B-2
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	1,300			0
Term Loan | Level 2 | Carrying Value | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	3,300			0
Term Loan | Level 2 | Fair Value | Term Loan A
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	0			92
Term Loan | Level 2 | Fair Value | Term Loan B
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	1,334			1,275
Term Loan | Level 2 | Fair Value | Term Loan B-2
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	1,303			0
Term Loan | Level 2 | Fair Value | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure	$ 3,321			$ 0