CASH DISTRIBUTIONS (Details) (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
CASH DISTRIBUTIONS
Cash distributions (in dollars per unit)	$ 0.84	$ 0.81	$ 2.46	$ 2.37
Cash distributions	$ 54	$ 52	$ 157	$ 137	[1]
General Partner
Incentive distributions
Incentive distributions	$ 0	$ 0	$ 0	$ 0

[1] Recast as discussed in Note 2.