CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Transmission revenues	$ 93	$ 103	$ 299	$ 328
Equity earnings (Note 5)	31	34	115	129
Operation and maintenance expenses	(18)	(15)	(51)	(48)
Property taxes	(6)	(7)	(19)	(21)
General and administrative	(2)	(2)	(6)	(4)
Depreciation and amortization	(19)	(25)	(58)	(73)
Financial charges and other (Note 15)	(20)	(23)	(63)	(69)
Net income before taxes	59	65	217	242
Income taxes			(1)	(1)
Net Income	59	65	216	241
Net income attributable to non-controlling interests	3	3	12	10
Net income attributable to controlling interests	56	62	204	231
Net income attributable to controlling interest allocation (Note 9)
General Partner	1	1	4	5
Class B units	1	4	1	4
Net income attributable to controlling interests	56	62	204	231
Common Units
Net income attributable to controlling interest allocation (Note 9)
Net income attributable to common units	$ 54	$ 57	$ 199	$ 222
Net income per common unit (Note 9) - basic and diluted (in dollars per unit)	$ 0.76	$ 0.79	$ 2.79	$ 3.11
Weighted average common units outstanding - basic and diluted (in units)	71.3	71.3	71.3	71.3
Common units outstanding, end of period (in units)	71.3	71.3	71.3	71.3