BENEFIT PLANS - COMPONENTS OF NET PERIODIC BENEFIT COSTS (Details) - USD ($) $ in Millions	4 Months Ended
	May 25, 2019	May 26, 2018
Pension Benefits
Components of net periodic benefit cost:
Service cost	$ 11	$ 15
Interest cost	41	43
Expected return on plan assets	(56)	(54)
Amortization of:
Actuarial loss (gain)	16	25
Net periodic benefit cost	12	29
Other Benefits
Components of net periodic benefit cost:
Service cost	2	2
Interest cost	2	2
Amortization of:
Prior service cost	(3)	(3)
Actuarial loss (gain)	(3)	(3)
Net periodic benefit cost	$ (2)	$ (2)