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Warranty Obligation (Tables)
 9 Months Ended
Jan. 23, 2015
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Obligations
Changes in the Company’s product warranty obligations during the nine months ended January 23, 2015 and January 24, 2014 consisted of the following:
 
Nine months ended
(in millions)
January 23,
2015
 
January 24,
2014
Balance at the beginning of the period
$
32

 
$
35

Warranty claims provision
17

 
24

Settlements made
(17
)
 
(21
)
Balance at the end of the period
$
32

 
$
38