Sale of Canadian Plant (Details) - Disposal Group, Not Discontinued Operations - Manufacturing assets in Port Colborne, Ontario, Canada - USD ($) $ in Millions		3 Months Ended
	Oct. 30, 2015	Sep. 30, 2015	Jul. 07, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration for the sale of assets			$ 30
Pre-tax restructuring-related charges with the sale of the plant		$ 2
Forecast
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gain on sale of plant	$ 10