BENEFIT PLANS - Additional Information (Detail) $ in Millions		3 Months Ended	12 Months Ended
	Sep. 11, 2014 USD ($)	Nov. 29, 2014 USD ($)	Feb. 27, 2016 USD ($) Employees Agreement plan	Feb. 28, 2015 USD ($)	Feb. 22, 2014 USD ($)
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Contribution to pension plans			$ 45
Contribution to other postretirement benefits plan			13
Defined benefit plan periodic cost increased in next fiscal year			$ 182
Defined benefit plan assets unrecognized gain loss recognized period			3 years
Assumed healthcare cost trend rate			7.00%
Specified age of employee for post retirement benefit plans				65 years
Company's service and interest cost would impact due to a 100 basis point change in the trend rate			$ 1
Company's accumulated postretirement benefit obligation would impact due to a 100 basis point decrease in the trend rate			3
Company's accumulated postretirement benefit obligation would impact due to a 100 basis point increase in the trend rate			$ 3
Discount rate				3.80%	4.65%
Expected return on plan assets			6.50%		7.00%
Total contribution expenses of defined contribution plans			$ 8	$ 16	$ 11
Contribution to pension plans			$ 43	$ 39	39
Number of plans included in other multiemployer pension plans | plan			11
Company's number of employees (employees) | Employees			38,000
Number of collective bargaining agreements covering employees renegotiated (agreements) | Agreement			9
Number of employees renegotiated collective bargaining agreement (employees) | Employees			1,600
Number of employees expired without renegotiated collective bargaining agreement (employees) | Employees			100
Number of collective bargaining agreements covering employees expired without renegotiated (agreements) | Agreement			3
Number of collective bargaining agreements covering employees expired (agreements) | Agreement			24
Minimum
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Discount rate			4.16%
Expected return on plan assets				7.00%
Minimum | Green Zone
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Maximum percentage of funded status			80.00%
Maximum
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Discount rate			3.95%
Expected return on plan assets				6.50%
Maximum | Red Zone
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Maximum percentage of funded status			65.00%
Maximum | Yellow Zone
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Maximum percentage of funded status			80.00%
Number of Employees Covered by Collective Bargaining Agreements
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Number of employees covered by collective bargaining agreements (employees) | Employees			16,000
Number of collective bargaining agreements covering employees renegotiated (agreements) | Agreement			55
Collective Bargaining Agreements Covering Employees Expire Within One Year
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Number of employee expire collective bargaining agreement (employees) | Employees			8,400
Pension Benefits
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Reduction in postretirement benefit obligation			$ 0	$ 0
Benefits paid			115	97
Contribution to pension plans			27	165
Pension Benefits | Minimum
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Contribution to pension plans			30
Pension Benefits | Maximum
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Contribution to pension plans			35
Lump Sum Pension Settlement
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Benefits paid		$ 272
Settlement of asset retirement obligations through noncash payments		$ 64
Discount rate		4.10%
Expected return on plan assets		6.50%
Finalization of pension and other postretirement benefit plan valuation, before tax		$ (200)
Pension and other postretirement benefit plans, adjustment, before reclassification adjustments		$ 141
Other Postretirement Benefits
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Reduction in postretirement benefit obligation			21	5
Defined benefit plan periodic cost increased			6
Benefits paid			4	4
Contribution to pension plans			15	4
Multiemployer Postretirement Benefit Plans Other than Pensions
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Contribution to multi-employer plans			$ 95	$ 89	$ 87
Retirees Before Age 65
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Assumed healthcare cost trend rate			0.25%
Assumed healthcare cost ultimate trend rate			4.50%
Retirees After Age 65
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Assumed healthcare cost trend rate			7.80%
Assumed healthcare cost ultimate trend rate			4.50%
SUPERVALU Retirement Plan
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Employer discretionary contribution amount	$ 47		$ 100