Reconciliation Of Income Taxes at Federal Statutory Rate to Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Income Tax Rate Reconciliation [Line Items]
Federal tax computed at the statutory rate	$ 16	$ (119)	$ 44
State taxes, net of Federal benefit	5	4	3
Foreign income taxed at rates other than Federal	(10)	(10)	(28)
Increase (decrease) in valuation allowance	(3)	112	8
Non-deductible goodwill impairment			15
Non-deductible Merger expenses	11		13
Non-deductible foreign interest	11	13	8
Other non-deductible expenses	5	12	4
Non-taxable income and additional deductible expenses	(4)
Change in unrecognized tax benefits		(2)
Tax expense from intercompany transactions	7	2	2
Subpart F and dividend income, net of foreign tax credits	1	2	75
Change in tax rate	1		2
Deferred taxes on undistributed foreign earnings			5
Other items, net	(1)	(2)	(4)
Income tax expense	$ 39	$ 12	$ 147