BENEFIT PLANS - COMPONENTS OF NET PERIODIC BENEFIT COSTS (Details) - USD ($) $ in Millions	4 Months Ended
	May 22, 2021	May 23, 2020
Pension Benefits
Components of net periodic benefit cost:
Service cost	$ 3	$ 4
Interest cost	32	34
Expected return on plan assets	(53)	(52)
Amortization of:
Actuarial loss (gain)	12	11
Net periodic benefit cost	(6)	(3)
Contributions into Fund	0	0
Other Benefits
Components of net periodic benefit cost:
Service cost	1	2
Interest cost	1	2
Amortization of:
Prior service cost	(4)	(4)
Actuarial loss (gain)	(6)	(2)
Net periodic benefit cost	$ (8)	$ (2)