v3.25.4
Common stock, stock option plans and stock compensation agreements - Narrative (Details)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 28, 2025
USD ($)
StockBasedCompensationPlans
$ / shares
shares
Dec. 29, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of stock-based compensation plans | StockBasedCompensationPlans 1    
Compensation cost charged for Long term incentive plan | $ $ 1,400 $ 1,200 $ 1,100
Total income tax benefit recognized | $ 283 251 221
Exercise of options, tax benefit | $ 215 94 126
Total compensation cost not yet recognized for option | $ $ 1,100 $ 1,000 $ 900
Weighted average period for total compensation cost not yet recognized 1 year 9 months 3 days 1 year 9 months 21 days 1 year 9 months 18 days
Average fair value of option granted (in dollars per share) | $ / shares $ 27.07 $ 27.67 $ 27.85
Total intrinsic value of options exercised | $ $ 1,442 $ 560 $ 729
Stock options outstanding (in shares) | shares 93,072 112,629 112,238
Stock option average life 5 years 6 months 5 years 3 months 18 days 5 years 6 months
Stock options exercisable (in shares) | shares   74,683 66,998
Stock options average price (in dollars per share) | $ / shares   $ 135.72 $ 123.39
Employee Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options expiration period 10 years    
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Average fair value of RSU's and PSU's granted (in dollars per share) | $ / shares $ 146.95 $ 147.51 $ 152.63
Fair Value of RSU or PSU units settled | $ $ 1,104 $ 833 $ 605
Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Average fair value of RSU's and PSU's granted (in dollars per share) | $ / shares $ 155.71 $ 133.76 $ 145.17
Fair Value of RSU or PSU units settled | $ $ 67 $ 146 $ 140
Minimum | Employee Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 6 months    
Minimum | Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 6 months    
Minimum | Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage 0.00%    
Maximum | Employee Stock Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Maximum | Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Maximum | Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage 200.00%    
2022 Long-Term Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized for issuance under long-term incentive plan (in shares) | shares 150,000    
Shares issued subject to stock options or stock appreciation rights (in shares) | shares 110,000    
Shares subject to full value awards (in shares) | shares 40,000    
Shares subject to full value award, excess (in shares) | shares 40,000    
Shares available for future grants under long-term incentive plan | shares 93,000