v3.4.0.3
Equity, Equity Activity (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2016
USD ($)
$ / shares
Mar. 31, 2015
USD ($)
Changes in carrying amount of Equity    
Balance at December 31, 2015 $ 1,778  
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification (86)  
Distributions [1] (98)  
Net earnings 92 $ 70
Contributions [2] 4  
Other 1  
Balance at March 31, 2016 $ 1,696  
Incentive Distribution, Distribution Split Marginal Percentage 50.00%  
Incentive Distribution, Minimum Distribution Level | $ / shares 0.3881  
Common    
Changes in carrying amount of Equity    
Balance at December 31, 2015 $ 1,707  
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification (2)  
Distributions [1] (73)  
Net earnings 60  
Contributions [2] 3  
Other 1  
Balance at March 31, 2016 1,701  
General Partner    
Changes in carrying amount of Equity    
Balance at December 31, 2015 (13)  
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification 0  
Distributions [1] (25)  
Net earnings 32  
Contributions [2] 1  
Other 0  
Balance at March 31, 2016 (5)  
Noncontrolling Interest    
Changes in carrying amount of Equity    
Balance at December 31, 2015 84  
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification (84)  
Distributions [1] 0  
Net earnings 0  
Contributions [2] 0  
Other 0  
Balance at March 31, 2016 0  
ATM Program    
Changes in carrying amount of Equity    
Equity offering, net of issuance costs 5  
ATM Program | Common    
Changes in carrying amount of Equity    
Equity offering, net of issuance costs 5  
ATM Program | General Partner    
Changes in carrying amount of Equity    
Equity offering, net of issuance costs 0  
ATM Program | Noncontrolling Interest    
Changes in carrying amount of Equity    
Equity offering, net of issuance costs $ 0  
[1] As the result of the reassessment performed, we deconsolidated RGS causing the derecognition of noncontrolling interest and an opening equity impact totaling $86 million. The cumulative effect to opening equity of $2 million related to the difference in earnings under the equity method of accounting in prior periods.
[2] Represents cash distributions declared and paid during the three months ended March 31, 2016 relating to the fourth quarter of 2015.