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Quarterly Financial Data (Unaudited) - Summarized Quarterly Result (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]                      
Revenue $ 639 $ 751 $ 776 $ 785 $ 764 $ 822 $ 777 $ 764 $ 2,951 $ 3,127 $ 2,648
Operating expenses:                      
Cost of products 514 601 623 627 607 654 620 616 2,365 2,497 2,147
Warehousing, selling and administrative 134 136 136 135 135 142 139 141      
Impairment charges 128               128    
Operating profit (loss) (137) 14 17 23 22 26 18 7 (83) 73 (41)
Net income (loss) $ (139) $ 10 $ 14 $ 18 $ 16 $ 20 $ 14 $ 2 $ (97) $ 52 $ (52)
Earnings (loss) per share:                      
Basic earnings (loss) per common share $ (1.27) $ 0.09 $ 0.12 $ 0.17 $ 0.14 $ 0.18 $ 0.12 $ 0.02 $ (0.89) $ 0.47 $ (0.48)
Diluted earnings (loss) per common share $ (1.27) $ 0.09 $ 0.12 $ 0.16 $ 0.14 $ 0.18 $ 0.12 $ 0.02 $ (0.89) $ 0.47 $ (0.48)