BENEFIT PLANS - COMPONENTS OF NET PERIODIC BENEFIT COSTS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Aug. 14, 2021	Aug. 15, 2020	Aug. 14, 2021	Aug. 15, 2020
Pension Benefits
Components of net periodic benefit cost:
Service cost	$ 4	$ 3	$ 7	$ 7
Interest cost	22	26	54	60
Expected return on plan assets	(40)	(39)	(93)	(91)
Amortization of:
Actuarial loss (gain)	9	8	21	19
Net periodic benefit cost	(5)	(2)	(11)	(5)
Contributions into Fund			0	0
Other Benefits
Components of net periodic benefit cost:
Service cost	1	1	2	3
Interest cost	1	1	2	3
Amortization of:
Prior service cost	(3)	(2)	(7)	(6)
Actuarial loss (gain)	(4)	(2)	(10)	(4)
Net periodic benefit cost	$ (5)	$ (2)	$ (13)	$ (4)