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Major Component of Discontinued Operations, Net of Tax (Detail) - Discontinued Operations, Held-for-Sale - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Sales $ 21 $ 115
Cost of goods sold and occupancy costs 16 88
Operating expenses 4 21
Restructuring charges 1 1
Other income (expense), net 1 (1)
Net increase of loss on discontinued operations held for sale   (1)
Net loss on sale of discontinued operations (3) (4)
Income tax expense (benefit) 1 (6)
Discontinued operations, net of tax $ (3) $ 5