v3.25.2
UNAUDITED QUARTERLY FINANCIAL DATA - Effect of Restatements (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Dec. 28, 2024
Sep. 28, 2024
Jun. 29, 2024
Mar. 30, 2024
Dec. 30, 2023
Jun. 29, 2024
Sep. 28, 2024
Dec. 28, 2024
Dec. 30, 2023
Dec. 31, 2022
Jan. 01, 2022
Balance sheet:                      
Cash and cash equivalents $ 47 $ 51 $ 47 $ 71 $ 89 $ 47 $ 51 $ 47 $ 89    
Inventories 367 355 372 333 348 372 355 367 348    
Total current assets 640 622 657 670 709 657 622 640 709    
Total assets 1,983 1,920 1,912 1,894 1,892 1,912 1,920 1,983 1,892    
Notes payable 51 6 4 3 4 4 6 51 4    
Other current liabilities 97 105 106 92 106 106 105 97 106    
Total current liabilities 851 778 784 792 837 784 778 851 837    
Retained earnings 27 23 46 23 3 46 23 27 3    
Total equity 328 328 345 320 302 345 328 328 302 $ 687 $ 570
Total liabilities and equity 1,983 1,920 1,912 1,894 1,892 1,912 1,920 1,983 1,892    
Statement of comprehensive income:                      
Cost of goods sold 442 491 469 502 462 971 1,462 1,904 2,006 2,064  
Operating profit 20 (2) 54 48 24 102 100 120 95 75  
Income before income taxes 11 (11) 50 46 24 96 85 96 148 (26)  
Income taxes (7) (3) 13 12 7 25 22 15 36 (1)  
Net income (loss) 18 (8) 37 34 17 71 63 81 112 (25)  
Comprehensive income $ 10 $ (8) $ 34 $ 31 $ 17 $ 65 $ 57 $ 67 $ 115 $ (26)  
Earnings per share, basic (in dollars per share) $ 0.21 $ (0.10) $ 0.43 $ 0.40 $ 0.21 $ 0.82 $ 0.73 $ 0.94 [1] $ 1.31 [1] $ (0.29) [1]  
Earnings per share, diluted (in dollars per share) $ 0.20 $ (0.10) $ 0.42 $ 0.39 $ 0.21 $ 0.81 $ 0.71 $ 0.91 [1] $ 1.31 [1] $ (0.29) [1]  
Operating activities                      
Net income $ 18 $ (8) $ 37 $ 34 $ 17 $ 71 $ 63 $ 81 $ 112 $ (25)  
Changes in operating assets and liabilities, net of acquisitions:                      
Inventories       14   (26) (8) (23) 83 (102)  
Income taxes payable       5   5 8 9 8 0  
Net cash provided by (used in) operating activities       10   37 98 107 422 53  
Financing activities                      
Net increase (reduction) of notes payable, with maturities less than or equal to 90 days       (2)   0 2        
Net cash provided by (used in) financing activities       (18)   (30) (40) (16) (188) 18  
Increase (decrease) in cash and cash equivalents       (17)   (42) (38) (42) 89 0  
Cash and cash equivalents at end of period 47 51 47 71 89 47 51 47 89 $ 0 $ 0
As Reported                      
Balance sheet:                      
Cash and cash equivalents 40 47 44 70   44 47 40      
Inventories 353 339 360 328 345 360 339 353 345    
Total current assets 619 602 642 664 706 642 602 619 706    
Total assets 1,962 1,900 1,897 1,888 1,889 1,897 1,900 1,962 1,889    
Notes payable   2 1 2   1 2        
Other current liabilities 94 101 103 90 105 103 101 94 105    
Total current liabilities 841 770 778 789 836 778 770 841 836    
Retained earnings 16 11 37 20 1 37 11 16 1    
Total equity 317 316 336 317 300 336 316 317 300    
Total liabilities and equity 1,962 1,900 1,897 1,888 1,889 1,897 1,900 1,962 1,889    
Statement of comprehensive income:                      
Cost of goods sold 440 495 476 504 465 980 1,475 1,915 2,009    
Operating profit 22 (6) 47 46 21 93 87 109 92    
Income before income taxes 13 (15) 43 44 21 87 72 85 145    
Income taxes (6) (4) 12 11 6 23 19 13 35    
Net income (loss) 19 (11) 31 33 15 64 53 72 110    
Comprehensive income $ 11 $ (11) $ 28 $ 30 $ 15 $ 58 $ 47 $ 58 $ 113    
Earnings per share, basic (in dollars per share) $ 0.21 $ (0.13) $ 0.37 $ 0.38 $ 0.18 $ 0.75 $ 0.62 $ 0.83 $ 1.28    
Earnings per share, diluted (in dollars per share) $ 0.22 $ (0.13) $ 0.36 $ 0.37 $ 0.18 $ 0.73 $ 0.60 $ 0.82 $ 1.28    
Operating activities                      
Net income $ 19 $ (11) $ 31 $ 33 $ 15 $ 64 $ 53 $ 72 $ 110    
Changes in operating assets and liabilities, net of acquisitions:                      
Inventories       16   (17) 5 (12) 86    
Income taxes payable       4   3 5 7 7    
Net cash provided by (used in) operating activities       10   37 98 100 422    
Financing activities                      
Net increase (reduction) of notes payable, with maturities less than or equal to 90 days       (3)   (3) (2)        
Net cash provided by (used in) financing activities       (19)   (33) (44)        
Increase (decrease) in cash and cash equivalents       (18)   (45) (42) (49)      
Cash and cash equivalents at end of period 40 47 44 70   44 47 40      
Adjustment                      
Balance sheet:                      
Cash and cash equivalents 7 4 3 1   3 4 7      
Inventories 14 16 12 5 3 12 16 14 3    
Total current assets 21 20 15 6 3 15 20 21 3    
Total assets 21 20 15 6 3 15 20 21 3    
Notes payable   4 3 1   3 4        
Other current liabilities 3 4 3 2 1 3 4 3 1    
Total current liabilities 10 8 6 3 1 6 8 10 1    
Retained earnings 11 12 9 3 2 9 12 11 2    
Total equity 11 12 9 3 2 9 12 11 2    
Total liabilities and equity 21 20 15 6 3 15 20 21 3    
Statement of comprehensive income:                      
Cost of goods sold 2 (4) (7) (2) (3) (9) (13) (11) (3)    
Operating profit (2) 4 7 2 3 9 13 11 3    
Income before income taxes (2) 4 7 2 3 9 13 11 3    
Income taxes (1) 1 1 1 1 2 3 2 1    
Net income (loss) (1) 3 6 1 2 7 10 9 2    
Comprehensive income $ (1) $ 3 $ 6 $ 1 $ 2 $ 7 $ 10 $ 9 $ 2    
Earnings per share, basic (in dollars per share) $ 0 $ 0.03 $ 0.06 $ 0.02 $ 0.03 $ 0.07 $ 0.11 $ 0.11 $ 0.03    
Earnings per share, diluted (in dollars per share) $ (0.02) $ 0.03 $ 0.06 $ 0.02 $ 0.03 $ 0.08 $ 0.11 $ 0.09 $ 0.03    
Operating activities                      
Net income $ (1) $ 3 $ 6 $ 1 $ 2 $ 7 $ 10 $ 9 $ 2    
Changes in operating assets and liabilities, net of acquisitions:                      
Inventories       (2)   (9) (13) (11) (3)    
Income taxes payable       1   2 3 2 1    
Net cash provided by (used in) operating activities       0   0 0 7 $ 0    
Financing activities                      
Net increase (reduction) of notes payable, with maturities less than or equal to 90 days       1   3 4        
Net cash provided by (used in) financing activities       1   3 4        
Increase (decrease) in cash and cash equivalents       1   3 4 7      
Cash and cash equivalents at end of period $ 7 $ 4 $ 3 $ 1   $ 3 $ 4 $ 7      
[1] On October 2, 2023, Kellanova, the former parent company of WK Kellogg Co, distributed 85,631,304 shares of WK Kellogg Co common stock to Kellanova's share owners in connection with its Spin-Off of WK Kellogg Co. See Note 1 "Description of the Company and Basis of Presentation" to the Consolidated Financial Statements for more information. Basic and diluted earnings per share ("EPS") were retrospectively recast for the number of shares of WK Kellogg Co common stock outstanding immediately following the Spin-Off for the year-ended December 31, 2022.