v3.26.1
Segment Information (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 31, 2026
USD ($)
Aug. 01, 2025
USD ($)
Jul. 31, 2026
USD ($)
segment
business_line
Aug. 01, 2025
USD ($)
Segment Reporting [Line Items]        
Number of operating segments | segment     3  
Number of reportable segments | segment     1  
Current Earnings        
Net sales $ 25,956 $ 23,959 $ 49,034 $ 44,888
Cost of sales 17,379 15,858 32,914 29,800
Selling, general and administrative: 4,456 4,175 8,879 8,222
Depreciation and amortization 572 457 1,138 902
Operating income $ 3,549 $ 3,469 $ 6,103 $ 5,964
Current Earnings, Percentages [Abstract]        
Net sales 100.00% 100.00% 100.00% 100.00%
Cost of sales 66.96% 66.19% 67.13% 66.39%
Selling, general and administrative 17.17% 17.42% 18.10% 18.31%
Depreciation and amortization 2.20% 1.91% 2.32% 2.01%
Operating income 13.67% 14.48% 12.45% 13.29%
Foundation Building Materials        
Segment Reporting [Line Items]        
Number of operating segments | segment     2  
Number of business lines | business_line     2  
Reportable Segment        
Current Earnings        
Net sales $ 24,015 $ 23,821 $ 45,339 $ 44,750
Cost of sales 15,775 15,751 29,855 29,694
Employee compensation and benefits 2,843 2,815 5,690 5,628
Occupancy and facility costs 478 471 970 940
Advertising 269 249 477 448
Other segment items 632 612 1,278 1,177
Selling, general and administrative: 4,222 4,147 8,415 8,193
Depreciation and amortization 472 447 938 892
Operating income $ 3,546 $ 3,476 $ 6,131 $ 5,971
Current Earnings, Percentages [Abstract]        
Net sales 100.00% 100.00% 100.00% 100.00%
Cost of sales 65.69% 66.12% 65.85% 66.36%
Employee compensation and benefits 11.84% 11.82% 12.56% 12.58%
Occupancy and facility costs 1.99% 1.98% 2.14% 2.10%
Advertising 1.12% 1.05% 1.05% 1.00%
Other segment items 2.62% 2.56% 2.81% 2.63%
Selling, general and administrative 17.57% 17.41% 18.56% 18.31%
Depreciation and amortization 1.97% 1.88% 2.07% 1.99%
Operating income 14.77% 14.59% 13.52% 13.34%