XML 263 R139.htm IDEA: XBRL DOCUMENT v3.20.1
Equipment (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Dec. 31, 2018
Jul. 01, 2018
Dec. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Jul. 02, 2018
Jul. 01, 2018
Dec. 31, 2017
Equipment                
Cost                
Opening balance $ 93 $ 84 $ 34          
Additions 5 9 4          
Closing balance 34 93 38          
Cost 93 93 38 $ 38 $ 34 $ 29 $ 93 $ 84
Accumulated depreciation                
Opening balance (58) (55) (5)          
Depreciation (5) (3) (10)          
Closing balance (5) (58) (15)          
Accumulated depreciation $ (58) $ (58) $ (15) (15) (5) 0 (58) (55)
Net book value       $ 23 $ 29 $ 29 35 $ 29
Fresh Start Adjustments                
Cost                
Fresh Start adjustments, net             (6)  
Fresh Start Adjustments | Equipment                
Cost                
Fresh Start adjustments, gross             (64)  
Fresh Start adjustments, net             (6)  
Accumulated depreciation                
Fresh Start adjustments             $ 58