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CONSOLIDATED STATEMENTS OF INCOME - USD ($)
shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Transmission revenues $ 91 $ 83 $ 266 $ 255
Equity earnings (Note 4) 24 17 88 63
Operation and maintenance expenses (14) (12) (36) (36)
Property taxes (4) (5) (14) (16)
General and administrative (1) (1) (5) (5)
Depreciation (21) (21) (64) (63)
Financial charges and other (Note 14) (17) (12) (50) (41)
Net income 58 49 185 157
Net income attributable to non-controlling interests       7
Net income attributable to controlling interests 58 49 185 150
Net income attributable to controlling interest allocation        
General Partner 4 2 9 5
Net income attributable to controlling interests 58 49 185 150
Common units        
Net income attributable to controlling interest allocation        
Limited partners $ 43 $ 45 $ 164 $ 143
Net income per common unit (Note 8) - basic (in dollars per unit) $ 0.65 $ 0.70 $ 2.51 $ 2.23
Net income per common unit (Note 8) - diluted (in dollars per unit) $ 0.65 $ 0.70 $ 2.51 $ 2.23
Weighted average common units outstanding - basic (in units) 66.1 64.0 65.3 63.8
Weighted average common units outstanding - diluted (in units) 66.1 64.0 65.3 63.8
Common units outstanding, end of period (in units) 66.6 64.0 66.6 64.0
Class B units        
Net income attributable to controlling interest allocation        
Limited partners $ 11 $ 2 $ 12 $ 2