XML 58 R43.htm IDEA: XBRL DOCUMENT v3.20.2
DISPOSITION OF BUSINESSES Disposition of Businesses - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Feb. 06, 2020
Jan. 14, 2020
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Feb. 15, 2020
Feb. 07, 2019
Disclosure of subsidiaries [line items]                
Proceeds From Partial Disposition Of Subsidiaries To Non-Controlling Interest, Net Of Taxes     $ 0 $ 0 $ 168 $ 165    
Colombian Regulated Distribution Operation [Member]                
Disclosure of subsidiaries [line items]                
Disposal of ownership interest, percentage   17.00%            
Proceeds from Disposition of Subsidiary   $ 88            
Gain (Loss) on Disposition of Business   36            
Increase (decrease) through transfer between revaluation surplus and retained earnings, equity         61      
Reclassification adjustments on cash flow hedges, net of tax   44            
Chilean toll roads                
Disclosure of subsidiaries [line items]                
Disposal of ownership interest, percentage 33.00%             33.00%
Gain (Loss) on Disposition of Business $ 140              
Reclassification adjustments on cash flow hedges, net of tax         44 $ 38    
Proceeds From Partial Disposition Of Subsidiaries To Non-Controlling Interest, Net Of Taxes $ 170              
North American Rail Operation                
Disclosure of subsidiaries [line items]                
Disposal of ownership interest, percentage             51.00%  
Proceeds from Disposition of Subsidiary             $ 40  
Gain (Loss) on Disposition of Business         $ 0      
Deferred consideration, acquisition-date fair value             195  
Consortium | Colombian Regulated Distribution Operation [Member]                
Disclosure of subsidiaries [line items]                
Proceeds from Disposition of Subsidiary   495            
Gain (Loss) on Disposition of Business   $ 197            
Consortium | North American Rail Operation                
Disclosure of subsidiaries [line items]                
Proceeds from Disposition of Subsidiary             $ 420