v3.25.2
Pay vs Performance Disclosure - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 28, 2025
Jun. 29, 2024
Jun. 28, 2025
Jun. 29, 2024
Pay vs Performance Disclosure        
Net income attributable to Kellanova $ 299 $ 344 $ 603 $ 611