RELATED PARTY TRANSACTIONS (Tables)

12 Months Ended

Dec. 31, 2015

RELATED PARTY TRANSACTIONS

Summary of capital and operating costs charged to pipeline systems by related party

Year ended December 31 (millions of dollars)		2015	2014	2013
Capital and operating costs charged by TransCanada's subsidiaries to:
	GTN(a)(b)	30	30	28
	Northern Border(a)	36	35	30
	Bison(a)(b)(d)	4	6	5
	Great Lakes(a)	30	30	31
	North Baja	5	5	4
	Tuscarora	4	4	4
Impact on the Partnership's net income attributable to controlling interests:
	GTN(b)(c)	25	19	19
	Northern Border	14	16	14
	Bison(b)(d)	4	4	4
	Great Lakes	13	13	14
	North Baja	5	4	4
	Tuscarora	4	4	4

Summary of amount payable to related party for costs charged

December 31 (millions of dollars)		2015	2014
Amount payable to TransCanada's subsidiaries for costs charged in the year by:
	GTN(a)	3	10
	Northern Border(a)	5	10
	Bison(a)	–	2
	Great Lakes(a)	3	9
	North Baja	–	1
	Tuscarora	1	1

(a)	Represents 100 percent of the costs.
(b)	Recast as discussed in Note 2 and Note 6.
(c)	In 2015, the Partnership acquired remaining 30 percent interest in GTN (Refer to Note 6).
(d)	In 2014, the Partnership acquired remaining 30 percent interest in Bison (Refer to Note 6).