FAIR VALUE MEASUREMENTS - Schedule of Carrying Value and Fair Value of Notes and Debentures (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
FAIR VALUE MEASUREMENTS:
Investments in equity securities measured at fair value		$ 113		$ 228
Debt discount and deferred financing costs		$ 58		36
Bally's
FAIR VALUE MEASUREMENTS:
Option purchase price, minimum (in dollars per share)		$ 30
Option purchase price, maximum (in dollars per share)		$ 45
Bally's | Options and Warrants
FAIR VALUE MEASUREMENTS:
Measurement adjustments	$ (7)	$ (8)	$ (8)
Interest Rate Swap
FAIR VALUE MEASUREMENTS:
Derivative asset		$ 1		1
STG Second Lien Secured Notes 9.750 Percent Due 2033 | Senior Notes
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)		9.75%
STG Senior Unsecured Notes 8.125 Percent Due 2027 | Senior Notes
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)		8.125%
5.500% Senior Notes due 2030 | Senior Notes
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)		5.50%
STG 5.125% Senior Notes | Senior Notes
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)		5.125%
STG Second-Out First Lien Secured Notes 4.375 Percent due 2032 | Senior Notes
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)		4.375%
4.125% Senior Secured Notes due 2030 | Senior Notes
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)		4.125%
STG 4.125% Unsecured Notes due 2030 | Senior Notes
FAIR VALUE MEASUREMENTS:
Interest rate (as a percent)		4.125%
Level 1 | Fair Value
FAIR VALUE MEASUREMENTS:
Investments in equity securities measured at fair value		$ 0		19
Deferred compensation assets		49		47
Deferred compensation liabilities		44		46
Level 1 | Fair Value | Money market funds
FAIR VALUE MEASUREMENTS:
Money market funds		440		601
Level 2 | Face Value | STG Second Lien Secured Notes 9.750 Percent Due 2033 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		432		0
Level 2 | Face Value | STG Senior Unsecured Notes 8.125 Percent Due 2027 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		1,430		0
Level 2 | Face Value | 5.500% Senior Notes due 2030 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		485		485
Level 2 | Face Value | STG 5.125% Senior Notes | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		89		274
Level 2 | Face Value | STG Second-Out First Lien Secured Notes 4.375 Percent due 2032 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		238		0
Level 2 | Face Value | 4.125% Senior Secured Notes due 2030 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		0		737
Level 2 | Face Value | STG 4.125% Unsecured Notes due 2030 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		4		0
Level 2 | Face Value | Term Loan B-2, due September 30, 2026 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		0		1,175
Level 2 | Face Value | Term Loan B-3, due April 1, 2028 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		3		714
Level 2 | Face Value | Term Loan B-4, due April 21, 2029 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		0		731
Level 2 | Face Value | Term Loan B-6, due December 31, 2029 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		710		0
Level 2 | Face Value | Term Loan B-7, due December 31, 2030 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		729		0
Level 2 | Face Value | Debt of variable interest entities
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		6		7
Level 2 | Fair Value
FAIR VALUE MEASUREMENTS:
Investments in equity securities measured at fair value		111		141
Level 2 | Fair Value | STG Second Lien Secured Notes 9.750 Percent Due 2033 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		462		0
Level 2 | Fair Value | STG Senior Unsecured Notes 8.125 Percent Due 2027 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		1,449		0
Level 2 | Fair Value | 5.500% Senior Notes due 2030 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		394		328
Level 2 | Fair Value | STG 5.125% Senior Notes | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		86		249
Level 2 | Fair Value | STG Second-Out First Lien Secured Notes 4.375 Percent due 2032 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		168		0
Level 2 | Fair Value | 4.125% Senior Secured Notes due 2030 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		0		546
Level 2 | Fair Value | STG 4.125% Unsecured Notes due 2030 | Senior Notes
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		3		0
Level 2 | Fair Value | Term Loan B-2, due September 30, 2026 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		0		1,160
Level 2 | Fair Value | Term Loan B-3, due April 1, 2028 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		2		575
Level 2 | Fair Value | Term Loan B-4, due April 21, 2029 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		0		589
Level 2 | Fair Value | Term Loan B-6, due December 31, 2029 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		607		0
Level 2 | Fair Value | Term Loan B-7, due December 31, 2030 | Term Loan
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		624		0
Level 2 | Fair Value | Debt of variable interest entities
FAIR VALUE MEASUREMENTS:
Debt fair value disclosure		6		7
Level 2 | Fair Value | Interest Rate Swap
FAIR VALUE MEASUREMENTS:
Derivative asset		1		1
Level 3 | Face Value | Options and Warrants
FAIR VALUE MEASUREMENTS:
Measurement adjustments	$ (3)	(8)	$ (4)
Level 3 | Fair Value
FAIR VALUE MEASUREMENTS:
Investments in equity securities measured at fair value		$ 2		$ 68