GOODWILL, INDEFINITE-LIVED INTANGIBLE ASSETS AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amortized intangible assets:
Goodwill	$ 4,716,000,000	$ 2,124,000,000	$ 2,124,000,000
Goodwill impairment	0	0	0
Accumulated goodwill impairment	$ 400,000	400,000
Amortization period, weighted average useful life	13 years
Amortization of definite-lived intangible assets and other assets	$ 327,000,000	175,000,000	179,000,000
Impairment charge	0	0	$ 0
Local News and Marketing Services
Amortized intangible assets:
Impairment charge	$ 0	$ 0
Customer relationships
Amortized intangible assets:
Amortization period, weighted average useful life	13 years
Network affiliation
Amortized intangible assets:
Amortization period, weighted average useful life	15 years
Favorable sports contracts
Amortized intangible assets:
Amortization period, weighted average useful life	12 years