CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Transmission revenues	$ 113	$ 115
Equity earnings (Note 5)	54	59
Operation and maintenance expenses	(16)	(16)
Property taxes	(7)	(7)
General and administrative	(2)	(1)
Depreciation and amortization	(20)	(24)
Financial charges and other (Note 15)	(22)	(23)
Net income before taxes	100	103
Income taxes		(1)
Net Income	100	102
Net income attributable to non-controlling interests	7	6
Net income attributable to controlling interests	93	96
Net income attributable to controlling interest allocation (Note 9)
General Partner	2	2
Net income attributable to controlling interests	93	96
Common units
Net income attributable to controlling interest allocation (Note 9)
Net income attributable to common units	$ 91	$ 94
Net income per common unit (Note 9) - basic and diluted	$ 1.28	$ 1.32
Weighted average common units outstanding - basic and diluted	71.3	71.2
Common units outstanding, end of period	71.3	71.3