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BENEFIT PLANS - COMPONENTS OF NET PERIODIC BENEFIT COSTS (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Nov. 07, 2020
Nov. 09, 2019
Nov. 07, 2020
Nov. 09, 2019
Pension Benefits        
Components of net periodic benefit cost:        
Service cost $ 3 $ 6 $ 10 $ 24
Interest cost 26 32 86 105
Expected return on plan assets (39) (43) (130) (140)
Amortization of:        
Actuarial loss (gain) 8 16 27 47
Net periodic benefit cost (2) 11 (7) 36
Contributions into Fund     0 0
Other Benefits        
Components of net periodic benefit cost:        
Service cost 3 2 6 6
Interest cost 1 2 4 6
Amortization of:        
Prior service cost (3) (3) (9) (8)
Actuarial loss (gain) (2) (3) (6) (8)
Net periodic benefit cost $ (1) $ (2) $ (5) $ (4)