v3.26.1
Segments and Disaggregated Revenue - Schedule of Segment Reporting Information by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Jan. 31, 2026
Segment Reporting Information [Line Items]      
Net sales $ 175,684 $ 163,981  
Membership and other income 2,067 1,628  
Total revenues 177,751 165,609  
Cost of sales 133,058 124,303  
Operating, selling, general and administrative expenses 37,200 34,171  
Operating income 7,493 7,135  
Interest, net 620 544  
Other (gains) and losses (275) 597  
Income before income taxes 7,148 5,994  
Depreciation and amortization 3,821 3,369  
Capital expenditures 6,684 4,986  
Total assets 289,607 262,372 $ 284,668
Corporate and support      
Segment Reporting Information [Line Items]      
Membership and other income 42 6  
Operating, selling, general and administrative expenses 722 526  
Operating income (680) (520)  
Depreciation and amortization 478 391  
Capital expenditures 578 589  
Total assets 14,742   15,762
Walmart U.S.      
Segment Reporting Information [Line Items]      
Net sales 117,169 112,163  
Walmart U.S. | Operating Segments      
Segment Reporting Information [Line Items]      
Net sales 117,169 112,163  
Membership and other income 926 636  
Total revenues 118,095 112,799  
Cost of sales 84,640 81,352  
Operating, selling, general and administrative expenses 27,558 25,751  
Operating income 5,897 5,696  
Depreciation and amortization 2,509 2,240  
Capital expenditures 5,011 3,772  
Total assets 170,738   165,627
Walmart International      
Segment Reporting Information [Line Items]      
Net sales 35,110 29,754  
Walmart International | Operating Segments      
Segment Reporting Information [Line Items]      
Net sales 35,110 29,754  
Membership and other income 425 379  
Total revenues 35,535 30,133  
Cost of sales 27,687 23,464  
Operating, selling, general and administrative expenses 6,246 5,376  
Operating income 1,602 1,293  
Depreciation and amortization 631 549  
Capital expenditures 821 481  
Total assets 86,016   86,093
Sam's Club U.S.      
Segment Reporting Information [Line Items]      
Net sales 23,405 22,064  
Fuel-related expenses 2,700 2,200  
Sam's Club U.S. | Operating Segments      
Segment Reporting Information [Line Items]      
Net sales 23,405 22,064  
Membership and other income 674 607  
Total revenues 24,079 22,671  
Cost of sales 20,731 19,487  
Operating, selling, general and administrative expenses 2,674 2,518  
Operating income 674 666  
Depreciation and amortization 203 189  
Capital expenditures 274 $ 144  
Total assets $ 18,111   $ 17,186