XML 84 R69.htm IDEA: XBRL DOCUMENT v3.19.2
PARTNERSHIP CAPITAL - Additional Information (Details)
$ / shares in Units, $ / shares in Units, shares in Millions, $ in Millions, $ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 17, 2019
USD ($)
$ / shares
shares
Sep. 12, 2018
USD ($)
shares
Sep. 12, 2018
CAD ($)
$ / shares
shares
Jan. 23, 2018
USD ($)
shares
Jan. 23, 2018
CAD ($)
$ / shares
shares
Jun. 30, 2019
USD ($)
shares
Jun. 30, 2018
USD ($)
shares
Jun. 30, 2019
USD ($)
day
shares
Jun. 30, 2018
USD ($)
shares
Dec. 31, 2018
USD ($)
shares
Schedule of Partnership Units [Line Items]                    
Repurchase Of Equity               $ (29)    
Proceeds from issuing shares           $ 2 $ 4 $ 4 $ 8  
Volume weighted average of trading price, number of trading days | day               5    
Issue of equity           $ 2 $ 4 $ 4 $ 8  
Preferred Unitholders Capital [Member]                    
Schedule of Partnership Units [Line Items]                    
Repurchase Of Equity               $ (1)    
Issued for cash | shares               0.0   18.0
Issue of equity               $ 0   $ 342
Preferred Units, Units Repurchased | shares               0.1   (0.1)
Repurchase of Preferred Equity               $ 1   $ 1
Preferred Unitholders Capital [Member] | Series 11 Preferred Units [Member]                    
Schedule of Partnership Units [Line Items]                    
Issued for cash | shares   10.0 10.0              
Number of share issued, price per share | $ / shares     $ 25              
Proceeds from issuing shares   $ 190 $ 250              
Quarterly fixed distribution rate   5.10% 5.10%              
Share underwriting related cost   $ 5                
Preferred Unitholders Capital [Member] | Series 9 Preferred Units                    
Schedule of Partnership Units [Line Items]                    
Issued for cash | shares       8.0 8.0          
Number of share issued, price per share | $ / shares         $ 25          
Proceeds from issuing shares       $ 161 $ 200          
Quarterly fixed distribution rate       5.00% 5.00%          
Share underwriting related cost       $ 4            
Special General Partner | Issued capital [member]                    
Schedule of Partnership Units [Line Items]                    
Weighted average number of shares outstanding | shares           1.6 1.6 1.6 1.6  
Partners' Capital Account, Units, Treasury Units Purchased1 | shares               0.0   0.0
Repurchase Of Equity               $ 0   $ 0
Issued for cash | shares               0.0   0.0
Issue of equity               $ 0   $ 0
Limited Partners 1 [Member]                    
Schedule of Partnership Units [Line Items]                    
Repurchase Of Equity               (28)    
Issue of equity           $ 2 $ 4 $ 4 $ 8  
Limited Partners 1 [Member] | Issued capital [member]                    
Schedule of Partnership Units [Line Items]                    
Weighted average number of shares outstanding | shares           279.7 276.7 278.9 276.6  
Partners' Capital Account, Units, Treasury Units Purchased1 | shares               (0.8)   (0.9)
Repurchase Of Equity               $ (28)   $ 30
Share Repurchase Related Cost               $ 1    
Issued for cash | shares 13.5             0.2   0.3
Number of share issued, price per share | $ / shares $ 42.5                  
Proceeds from issuing shares $ 575                  
Share issue related cost $ 24                  
Dividend reinvestment plan, unit issued (less than) | shares               1.0 1.0  
Dividend reinvestment plan, proceeds               $ 4 $ 8  
Issue of equity           $ 2 $ 4 $ 4 $ 8 $ 14
Non-controlling Interest - Redeemable Partnership Units [Member] | Issued capital [member]                    
Schedule of Partnership Units [Line Items]                    
Weighted average number of shares outstanding | shares           115.8 115.8 115.8 115.8  
Issued for cash | shares 6.1                  
Proceeds from issuing shares $ 250                  
Non-controlling Interest - Exchange LP Units, equity [Member] | Issued capital [member]                    
Schedule of Partnership Units [Line Items]                    
Issued for cash | shares               0.0   5.7
Issue of equity               $ 0   $ 232
Exchange LP unit conversion, shares | shares               3.1   1.3
Exchange LP unit conversion, value               $ (51)   $ (20)