XML 44 R32.htm IDEA: XBRL DOCUMENT v3.5.0.2
Business Segments - Summary of Operating Results by Reportable Segment (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Revenue:        
Total revenue $ 501 $ 750 $ 1,049 $ 1,613
Operating profit (loss):        
Total operating loss $ (57) $ (27) $ (122) $ (35)
Operating profit (loss) % of revenue:        
Total operating loss % (11.40%) (3.60%) (11.60%) (2.20%)
United States [Member]        
Revenue:        
Total revenue $ 337 $ 496 $ 694 $ 1,097
Operating profit (loss):        
Total operating loss $ (44) $ (23) $ (103) $ (35)
Operating profit (loss) % of revenue:        
Total operating loss % (13.10%) (4.60%) (14.80%) (3.20%)
Canada [Member]        
Revenue:        
Total revenue $ 55 $ 89 $ 118 $ 205
Operating profit (loss):        
Total operating loss $ (8) $ (5) $ (14) $ (2)
Operating profit (loss) % of revenue:        
Total operating loss % (14.50%) (5.60%) (11.90%) (1.00%)
International [Member]        
Revenue:        
Total revenue $ 109 $ 165 $ 237 $ 311
Operating profit (loss):        
Total operating loss $ (5) $ 1 $ (5) $ 2
Operating profit (loss) % of revenue:        
Total operating loss % (4.60%) 0.60% (2.10%) 0.60%