NET INCOME PER COMMON UNIT (Details 2) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Unit [Abstract]
Net income attributable to controlling interests, including GTN and Bison's former parent				$ 114	[1]
Net income attributed to GTN and Bison's former parent				(26)
Net income attributable to controlling interests	31	37	125	88	[1],[2]
Net income allocated to General Partner, including incentive distribution rights	(1)	(1)	(3)	(2)	[1]
Net income allocable to common units	$ 30	$ 36	$ 122	$ 86	[1],[2]
Weighted average common units outstanding (millions) - basic (in units)	62.6	62.3	62.4	57.8	[1]
Weighted average common units outstanding (millions) - diluted (in units)	62.6	62.3	62.4	57.8	[1]
Net income per common unit - basic (in dollars per unit)	$ 0.48	$ 0.58	$ 1.96	$ 1.50	[1],[2]
Net income per common unit - diluted (in dollars per unit)	$ 0.48	$ 0.58	$ 1.96	$ 1.50	[1],[2]

[1] Recast as discussed in Note 2.

[2] Recast as discussed in Note 7.