Assets and Liabilities of Discontinued Operations (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016	Sep. 24, 2016
Assets
Cash and cash equivalents	$ 36		$ 142
Current assets of discontinued operations	141	$ 142
Liabilities
Current liabilities of discontinued operations	68	104
Discontinued Operations, Held-for-Sale
Assets
Cash and cash equivalents	36	44
Receivables, net	55	88
Inventories	67	82
Prepaid expenses and other current assets	5	4
Property and equipment, net	31	31
Other assets	2	6
Valuation allowance	(55)	(113)
Current assets of discontinued operations	141	142
Liabilities
Trade accounts payable	43	60
Accrued expenses and other current liabilities	20	27
Income taxes payable		2
Short-term borrowings and current maturities of long-term debt		9
Deferred income taxes and other long-term liabilities	5	6
Current liabilities of discontinued operations	$ 68	$ 104