XML 85 R71.htm IDEA: XBRL DOCUMENT v3.3.1.900
Summary of Valuation Allowances (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 26, 2015
Dec. 27, 2014
Dec. 28, 2013
Income Taxes [Line Items]      
Beginning balance $ 804    
Additions, charged to expense 9 $ 8 $ 14
Reductions (11) (16) (11)
Ending balance 763 804  
Valuation Allowance of Deferred Tax Assets      
Income Taxes [Line Items]      
Beginning balance 804 683 583
Additions, charged to expense   121 26
Additions, due to the Merger     84
Reductions (41)   (10)
Ending balance $ 763 $ 804 $ 683