Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Partners' Equity

v3.8.0.1
Consolidated Statements of Partners' Equity - USD ($)
shares in Millions, $ in Millions
Total
Common Units [Member]
Class B Units [Member]
Subordinated Units [Member]
General Partner [Member]
Units, Outstanding, beginning of period at Dec. 31, 2014   57.1 145.3 135.4  
Partners' equity, beginning of period at Dec. 31, 2014 $ 1,131 $ 496 $ (38) $ 648 $ 25
General partner units, Outstanding, beginning of period at Dec. 31, 2014         6.9
Increase (Decrease) in Partners' Capital [Roll Forward]          
Net income (loss) (319) (93) 0 (220) $ (6)
Distributions (99) (97) 0 0 (2)
Amortization of beneficial conversion feature of Class B units 0 $ 0 $ 1 $ (1) 0
Units, Outstanding, end of period at Dec. 31, 2015   57.1 145.3 135.4  
Partners' equity, end of period at Dec. 31, 2015 713 $ 306 $ (37) $ 427 $ 17
General partner units, Outstanding, end of period at Dec. 31, 2015         6.9
Increase (Decrease) in Partners' Capital [Roll Forward]          
Net income (loss) (171) (50) 0 (117) $ (4)
Distributions (99) (97) 0 0 (2)
Amortization of beneficial conversion feature of Class B units 0 $ (29) $ 99 $ (70) 0
Units, Outstanding, end of period at Dec. 31, 2016   57.1 145.3 135.4  
Partners' equity, end of period at Dec. 31, 2016 $ 443 $ 130 $ 62 $ 240 $ 11
General partner units, Outstanding, end of period at Dec. 31, 2016 6.9       6.9
Increase (Decrease) in Partners' Capital [Roll Forward]          
Net income (loss) $ 490 294 0 186 $ 10
Distributions (294) $ (226) $ 0 $ (59) $ (9)
Conversion of Class B units into common units, units   291.5 (145.3) 0.0 3.0
Conversion of Class B units into common units 0 $ 2,066 $ (2,066) $ 0 $ 0
Amortization of beneficial conversion feature of Class B units 0 $ (594) $ 2,004 $ (1,410) 0
Units, Outstanding, end of period at Dec. 31, 2017   348.6 0.0 135.4  
Partners' equity, end of period at Dec. 31, 2017 $ 639 $ 1,670 $ 0 $ (1,043) $ 12
General partner units, Outstanding, end of period at Dec. 31, 2017 9.9       9.9