ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - CHANGES IN AOCI BY COMPONENT (Details) - USD ($) $ in Millions		3 Months Ended				4 Months Ended		6 Months Ended
		Aug. 17, 2019	Feb. 02, 2019	Nov. 10, 2018	Aug. 18, 2018	May 25, 2019	May 26, 2018	Aug. 17, 2019	Aug. 18, 2018
Accumulated other comprehensive income (loss)
Balance at the beginning of the period						$ 7,886		$ 7,886
Cumulative effect of accounting change	[1]							(146)
Amounts reclassified out of AOCI		$ 10			$ 9			18	$ 25
Total other comprehensive (loss) income		(45)	$ 56	$ 48	5	(146)	$ 16	(191)	21
Balance at the end of the period		8,711	7,886					8,711
Accumulated Other Comprehensive Loss
Accumulated other comprehensive income (loss)
Balance at the beginning of the period				(450)		(346)	(471)	(346)	(471)
Cumulative effect of accounting change								(146)
OCI before reclassifications								(63)	(4)
Amounts reclassified out of AOCI								18	25
Total other comprehensive (loss) income		(45)	56	48	5	(146)	16	(191)	21
Balance at the end of the period		(537)	(346)		(450)			(537)	(450)
Cash Flow Hedging Activities
Accumulated other comprehensive income (loss)
Balance at the beginning of the period				26		6	24	6	24
Cumulative effect of accounting change								(5)
OCI before reclassifications								(63)
Amounts reclassified out of AOCI								2	2
Total other comprehensive (loss) income								(66)	2
Balance at the end of the period		(60)	6		26			(60)	26
OCI before reclassifications, tax								(26)	(1)
Amounts reclassified out of AOCI, tax								2	2
Available for sale Securities
Accumulated other comprehensive income (loss)
Balance at the beginning of the period							4		4
OCI before reclassifications									(4)
Total other comprehensive (loss) income									(4)
OCI before reclassifications, tax									(1)
Pension and Postretirement Defined Benefit Plans
Accumulated other comprehensive income (loss)
Balance at the beginning of the period				$ (476)		$ (352)	$ (499)	(352)	(499)
Cumulative effect of accounting change								(141)
Amounts reclassified out of AOCI		9			8			16	23
Total other comprehensive (loss) income								(125)	23
Balance at the end of the period		(477)	$ (352)		(476)			(477)	(476)
Amounts reclassified out of AOCI, tax		$ 2			$ 3			$ 5	$ 7

[1] Related to the adoption of Accounting Standards Update (“ASU”) 2018-02, "Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income," (see Note 5 for additional details)