Revenue Recogntion Revenue Recognition-Summary of Information about Disaggregated Revenue of Reportable Segments(Details) - USD ($) $ in Millions	4 Months Ended
	Jun. 16, 2018	Jun. 17, 2017
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 4,755	$ 3,517
Retailers
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	3,715	2,463
Military
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	133	143
Individuals
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	894	899
Other
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	13	12
Nonperishable grocery products(1)
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	3,100	2,237
Perishable grocery products(2)
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	1,455	1,079
Pharmacy products
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	90	92
Services revenue
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	86	88
Equipment sales
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	9	9
Other
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	15	12
Wholesale
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	3,814	2,556
Wholesale | Retailers
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	3,675	2,408
Wholesale | Military
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	133	143
Wholesale | Individuals
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Wholesale | Other
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	6	5
Wholesale | Nonperishable grocery products(1)
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	2,617	1,749
Wholesale | Perishable grocery products(2)
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	1,134	760
Wholesale | Pharmacy products
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Wholesale | Services revenue
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	41	28
Wholesale | Equipment sales
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	9	9
Wholesale | Other
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	13	10
Retail
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	901	906
Retail | Retailers
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Retail | Military
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Retail | Individuals
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	894	899
Retail | Other
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	7	7
Retail | Nonperishable grocery products(1)
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	483	488
Retail | Perishable grocery products(2)
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	321	319
Retail | Pharmacy products
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	90	92
Retail | Services revenue
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	5	5
Retail | Equipment sales
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Retail | Other
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	2	2
Corporate
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	40	55
Corporate | Retailers
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	40	55
Corporate | Military
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Corporate | Individuals
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Corporate | Other
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Corporate | Nonperishable grocery products(1)
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Corporate | Perishable grocery products(2)
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Corporate | Pharmacy products
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Corporate | Services revenue
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	40	55
Corporate | Equipment sales
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0
Corporate | Other
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 0	$ 0