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Reserves for Closed Properties (Details) (USD $)
In Millions, unless otherwise specified
4 Months Ended 12 Months Ended
Jan. 19, 2014
Sep. 29, 2013
Restructuring Reserve [Roll Forward]    
Beginning Balance $ 36 $ 41
Additions 1 5
Usage (3) (11)
Adjustments 3 1
Ending Balance $ 37 $ 36