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Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 30, 2013
Commitments and Contingencies Disclosure [Abstract]  
Changes in Estimated Liability for Product Warranty
 
 
Quarter Ended
 
 
March 30,
2013
 
March 31,
2012
 
 
(In millions)
Beginning balance
 
$
16

 
$
20

New warranties issued
 
6

 
9

Settlements
 
(6
)
 
(8
)
Changes in liability for pre-existing warranties, including expirations
 
(2
)
 
(1
)
Ending balance
 
$
14

 
$
20