CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash Generated From Operations
Net income	$ 157	$ 151
Depreciation	63	64
Amortization of debt issue costs (Note 14)	1	1
Accruals for costs related to the 2014 Bison Acquisition		2
Change in other liabilities		1
Equity allowance for funds used during construction	(1)
Change in operating working capital (Note 10)	9	36
Total cash generated from operations	229	255
Investing Activities
Investment in Great Lakes	(4)	(4)
Adjustment to the 2013 acquisition (Note 11)		(25)
Acquisition of the remaining 30 percent interest in GTN (Note 6)	(264)
Capital expenditures	(45)	(8)
Other	1	1
Total investing activities	(282)	(11)
Financing Activities
Distributions paid (Note 9)	(169)	(157)
Distributions paid to non-controlling interests	(9)	(42)
ATM Equity issuance, net (Note 7)	26	73
Equity contribution by the General Partner (Note 6)	2
Long-term debt issued, net of discount	598	15
Long-term debt repaid	(390)	(60)
Debt issuance costs	(3)
Total financing activities	55	(171)
Increase/(decrease) in cash and cash equivalents	2	73
Cash and cash equivalents, beginning of period	26	25
Cash and cash equivalents, end of period	28	98
Northern Border
Investing Activities
Cumulative distributions in excess of equity earnings	18	15
Great Lakes
Investing Activities
Cumulative distributions in excess of equity earnings	$ 12	$ 10