Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Partners' Equity

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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, 2016   57.1 145.3 135.4  
Partners' equity, beginning of period at Dec. 31, 2016 $ 443 $ 130 $ 62 $ 240 $ 11
General partner units, Outstanding, beginning of period at Dec. 31, 2016         6.9
Increase (Decrease) in Partners' Capital [Roll Forward]          
Net income 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
Increase (Decrease) in Partners' Capital [Roll Forward]          
Net income 1,274 899 0 349 $ 26
Distributions (1,113) $ (763) $ 0 $ (296) (54)
Units, Outstanding, end of period at Dec. 31, 2018   348.6 0.0 135.4  
Partners' equity, end of period at Dec. 31, 2018 $ 800 $ 1,806 $ 0 $ (990) $ (16)
General partner units, Outstanding, end of period at Dec. 31, 2018 9.9       9.9
Increase (Decrease) in Partners' Capital [Roll Forward]          
Net income $ 1,175 829 0 322 $ 24
Distributions (1,260) $ (843) $ 0 $ (328) (89)
Units, Outstanding, end of period at Dec. 31, 2019   348.6 0.0 135.4  
Partners' equity, end of period at Dec. 31, 2019 $ 715 $ 1,792 $ 0 $ (996) $ (81)
General partner units, Outstanding, end of period at Dec. 31, 2019 9.9       9.9