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BENEFIT PLANS (Details) (USD $)
In Millions, unless otherwise specified
4 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
May 24, 2014
Aug. 16, 2014
Aug. 17, 2013
Aug. 16, 2014
Pension Benefits
Aug. 17, 2013
Pension Benefits
Aug. 16, 2014
Pension Benefits
Aug. 17, 2013
Pension Benefits
Aug. 16, 2014
Other Benefits
Aug. 17, 2013
Other Benefits
Aug. 16, 2014
Other Benefits
Aug. 17, 2013
Other Benefits
Components of net periodic benefit cost:                      
Service cost       $ 10 $ 8 $ 24 $ 23 $ 2 $ 4 $ 6 $ 9
Interest cost       42 35 98 83 3 4 7 9
Expected return on plan assets       (56) (52) (130) (121)        
Amortization of:                      
Prior service cost               (2) (1) (4) (2)
Actuarial loss       12 24 28 55 (1)   (3)  
Net periodic benefit cost       8 15 20 40 2 7 6 16
Cost of other defined contribution plans   98 80                
Multiemployer pension plan charge (after-tax) $ 56