OTHER ASSETS - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	12 Months Ended
	Nov. 18, 2020	Apr. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments			$ 45	$ (36)	$ (35)
Investments in equity securities			402	400
Unrealized (gain) loss on FV-NI and NAV investments			(42)	156	2
Equity investments without readily determinable fair value			18	26
Cumulative impairments			7	7
Impairment to carrying amount			0	0	7
Purchase of investment			256	139	452
Exercise price (in dollars per share)		$ 0.01
Unfunded commitments related to private equity investment funds			111	98
Fair Value Measured at Net Asset Value Per Share
Schedule of Equity Method Investments [Line Items]
Unfunded commitments related to private equity investment funds			81	27
Alternative Investment			147	24
YES Network
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments			$ 41	$ 6	$ 16
Bally's
Schedule of Equity Method Investments [Line Items]
Penny warrants acquirable (up to) (in shares)	8,200,000
Warrants available for purchase (up to) (in shares)	3,300,000
Option available for purchase (up to) (in shares)	1,600,000
Option purchase price, starting at (in dollars per share)	$ 30
Option purchase price, maximum (in dollars per share)	$ 45
Vesting period	4 years
Purchase of investment		$ 93
Number of warrants convertible (in shares)		1,700,000