Segment Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 25, 2012 Segment	Feb. 26, 2011	Feb. 27, 2010
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	$ 36,100	$ 37,534	$ 40,597
% of total	100.00%	100.00%	100.00%
Segment Information (Textual)
Number of retail operating segments	2
Retail food [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	27,906	28,911	31,637
% of total	77.00%	77.00%	78.00%
Retail food [Member] | Nonperishable grocery products [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	15,062	15,546	17,233
% of total	42.00%	41.00%	43.00%
Retail food [Member] | Perishable grocery products [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	7,797	8,076	8,655
% of total	22.00%	22.00%	21.00%
Retail food [Member] | Pharmacy products [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	2,353	2,391	2,541
% of total	6.00%	6.00%	6.00%
Retail food [Member] | General merchandise and health and beauty care products [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	1,654	1,794	2,081
% of total	5.00%	5.00%	5.00%
Retail food [Member] | Fuel [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	564	596	581
% of total	1.00%	2.00%	2.00%
Retail food [Member] | Other [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	476	508	546
% of total	1.00%	1.00%	1.00%
Independent business [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	8,194	8,623	8,960
% of total	22.70%	23.00%	22.10%
Independent business [Member] | Product sales to independent retail customers [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	8,182	8,400	8,788
% of total	23.00%	22.00%	22.00%
Independent business [Member] | Services to independent retail customers [Member]
Net Sales of the retail food and independent segment in terms of amounts and percentage
Net sales	$ 12	$ 223	$ 172
% of total		1.00%