RELATED PARTY TRANSACTIONS (Tables)

12 Months Ended

Dec. 31, 2012

RELATED PARTY TRANSACTIONS

Schedule of costs charged by related party

Year ended December 31 (millions of dollars)		2012	2011	2010
Capital and operating costs charged by TransCanada's subsidiaries to:
	Great Lakes(a)	33	31	30
	Northern Border(a)	31	29	26
	GTN(a)(b)	29	22	–
	Bison(a)(b)	6	8	–
	North Baja	4	4	4
	Tuscarora	4	5	4
Impact on the Partnership's net income:
	Great Lakes	15	14	13
	Northern Border	14	13	13
	GTN(b)	7	5	–
	Bison(b)	1	1	–
	North Baja	4	4	3
	Tuscarora	4	5	4

Schedule of amounts payable to related party for costs charged during the period

December 31 (millions of dollars)		2012	2011
Amount payable to TransCanada's subsidiaries for costs charged in the year by:
	Great Lakes(a)	4	3
	Northern Border(a)	4	3
	GTN(a)	3	3
	Bison(a)	1	1
	North Baja	1	1
	Tuscarora	1	1

^(a)

Represents 100 percent of the costs.

^(b)

25 percent interests in each of GTN and Bison were acquired in May 2011.