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Noncontrolling Interests (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Jan. 26, 2014
Apr. 27, 2014
Apr. 28, 2013
Noncontrolling Interest [Line Items]      
Payments to Acquire Interest in Joint Venture   $ 7  
Contribution from noncontrolling interest   5 3
CHINA
     
Noncontrolling Interest [Line Items]      
Controlling interest in a company   60.00%  
Malaysia [Member]
     
Noncontrolling Interest [Line Items]      
Controlling interest in a company   70.00%  
Noncontrolling Interests [Member]
     
Noncontrolling Interest [Line Items]      
Contribution from noncontrolling interest   5 3
Restructuring charges, after tax $ 5