PLANT, PROPERTY AND EQUIPMENT (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
PLANT, PROPERTY AND EQUIPMENT
Cost	$ 2,716	$ 2,711
Accumulated Depreciation	(674)	(600)
Net Book Value	2,042	2,111	[1]
Pipeline
PLANT, PROPERTY AND EQUIPMENT
Cost	2,045	2,040
Accumulated Depreciation	(522)	(462)
Net Book Value	1,523	1,578
Compression
PLANT, PROPERTY AND EQUIPMENT
Cost	520	514
Accumulated Depreciation	(120)	(112)
Net Book Value	400	402
Metering and other equipment
PLANT, PROPERTY AND EQUIPMENT
Cost	146	142
Accumulated Depreciation	(32)	(26)
Net Book Value	114	116
Construction in progress
PLANT, PROPERTY AND EQUIPMENT
Cost	5	15
Net Book Value	$ 5	$ 15

[1] (a) Recast as discussed in Note 2 and Note 6.