v3.26.1
Pay vs Performance Disclosure - USD ($)
 5 Months Ended 7 Months Ended 12 Months Ended
May 25, 2025
Jan. 02, 2025
May 31, 2026
May 25, 2025
May 26, 2024
May 28, 2023
May 29, 2022
Pay vs Performance Disclosure              
Pay vs Performance Disclosure, Table    
Summary Comp. Table Total for Former PEO(2)
Comp. Actually Paid to Former PEO(3)
Average Summary Compensation Table Total for Non-PEO
NEOs(2)
Average
Compensation
Actually Paid
to Non-PEO
NEOs(3)
Value of Initial Fixed $100
Investment Based on:(4)
GAAP
Net Income
($mil.)
Year(1)
Summary Comp. Table for Current PEO(2)
Comp. Actually Paid to Current PEO(3)
Lamb Weston
Total
Shareholder
Return
Peer Group
Total
Shareholder
Return(5)

Adjusted EBITDA ($mil.)(6)
FY2026$16,004,614 $11,635,875 $10,056,827 $7,469,581 $57 $70 $290 $1,147 
FY2025$2,688,616 $5,919,862 $(1,974,061)$(10,590,201)$1,976,646 $(826,328)$65 $96 $357 $1,260 
FY2024$7,037,026 $(5,774,697)$2,739,197 $1,046,363 $113 $102 $726 $1,461 
FY2023$20,352,276 $40,007,566 $5,456,807 $9,221,443 $136 $100 $1,009 $1,249 
FY2022$7,858,113 $4,612,617 $1,984,243 $1,404,350 $84 $96 $201 $742 
        
Company Selected Measure Name     Adjusted EBITDA        
Named Executive Officers, Footnote     Michael J. Smith (current PEO) was appointed as the PEO effective January 3, 2025. Thomas P. Werner (former PEO) served as the PEO in fiscal 2025 through January 2, 2025 and served as the PEO for the entirety of fiscal 2024-2022. Our Non-PEO NEOs for the applicable fiscal years were as follows:
•FY2026: Bernadette M. Madarieta, Marc P.J.H. Schroeder, James D. Gray, Jan E.B. Craps and Sylvia J. Wilks
•FY2025: Bernadette M. Madarieta, Marc P.J.H. Schroeder, Eryk J. Spytek. Sylvia Wilks and Sharon L. Miller
•FY2024: Bernadette M. Madarieta, Michael J. Smith, Sukshma A. Rajagopalan and Marc P.J.H. Schroeder
•FY2023: Bernadette M. Madarieta, Michael J. Smith, Sharon L. Miller and Steven J. Younes
•FY2022: Bernadette M. Madarieta, Michael J. Smith, Sharon L. Miller, Eryk J. Spytek and Robert M. McNutt 		       
PEO Total Compensation Amount     $ 16,004,614        
PEO Actually Paid Compensation Amount     $ 11,635,875        
Adjustment To PEO Compensation, Footnote    
Fiscal Year 2026
Current PEO
(Mr. Smith)
Average
Non-PEO
NEOs
Summary Compensation Table Total$16,004,614 $10,056,827 
Minus Change in Pension Value Reported in SCT for the Fiscal Year
$— $— 
Plus Pension Value Service Cost for the Fiscal Year
$— $— 
Minus Stock Award Value & Option Award Value Reported in SCT for the Fiscal Year
$13,084,493 $9,114,235 
Plus Year End Fair Value of Equity Awards Granted During the Covered Year that Remain Outstanding and Unvested as of Last Day of the Fiscal Year
$9,228,903 $6,842,049 
Plus Year over Year Change in Fair Value as of the Last Day of the Fiscal Year of Outstanding and Unvested Equity Awards Granted in Prior Fiscal Years
$(367,926)$(112,020)
Plus Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Fiscal Year
$— $27,017 
Plus Year over Year Change in Fair Value as of the Vesting Date of Equity Awards Granted in Prior Fiscal Years that Vested During the Fiscal Year$(145,223)$(163,359)
Minus Fair Value at the End of the Prior Year of Equity Awards that Failed to Meet Vesting Conditions in the Fiscal Year
$— $66,698 
Plus Value of Dividends or other Earnings Paid on Stock or Option Awards Not Otherwise Reflected in Fair Value or Total Compensation for the Fiscal Year
$— $— 
Compensation Actually Paid$11,635,875 $7,469,581 
In the table above, the unvested equity values are computed in accordance with the methodology used for financial reporting purposes, and for unvested awards subject to performance-based vesting conditions, based on the probable outcome of such performance-based vesting conditions as of the last day of the year.
        
Non-PEO NEO Average Total Compensation Amount     $ 10,056,827 $ 1,976,646 $ 2,739,197 $ 5,456,807 $ 1,984,243
Non-PEO NEO Average Compensation Actually Paid Amount     $ 7,469,581 (826,328) 1,046,363 9,221,443 1,404,350
Adjustment to Non-PEO NEO Compensation Footnote    
Fiscal Year 2026
Current PEO
(Mr. Smith)
Average
Non-PEO
NEOs
Summary Compensation Table Total$16,004,614 $10,056,827 
Minus Change in Pension Value Reported in SCT for the Fiscal Year
$— $— 
Plus Pension Value Service Cost for the Fiscal Year
$— $— 
Minus Stock Award Value & Option Award Value Reported in SCT for the Fiscal Year
$13,084,493 $9,114,235 
Plus Year End Fair Value of Equity Awards Granted During the Covered Year that Remain Outstanding and Unvested as of Last Day of the Fiscal Year
$9,228,903 $6,842,049 
Plus Year over Year Change in Fair Value as of the Last Day of the Fiscal Year of Outstanding and Unvested Equity Awards Granted in Prior Fiscal Years
$(367,926)$(112,020)
Plus Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Fiscal Year
$— $27,017 
Plus Year over Year Change in Fair Value as of the Vesting Date of Equity Awards Granted in Prior Fiscal Years that Vested During the Fiscal Year$(145,223)$(163,359)
Minus Fair Value at the End of the Prior Year of Equity Awards that Failed to Meet Vesting Conditions in the Fiscal Year
$— $66,698 
Plus Value of Dividends or other Earnings Paid on Stock or Option Awards Not Otherwise Reflected in Fair Value or Total Compensation for the Fiscal Year
$— $— 
Compensation Actually Paid$11,635,875 $7,469,581 
In the table above, the unvested equity values are computed in accordance with the methodology used for financial reporting purposes, and for unvested awards subject to performance-based vesting conditions, based on the probable outcome of such performance-based vesting conditions as of the last day of the year.
        
Compensation Actually Paid vs. Total Shareholder Return     The graph below illustrates the relationship between our TSR and the Peer Group TSR over the five fiscal years ending May 31, 2026 based on a hypothetical investment of $100 on May 31, 2021, as well as the relationship between TSR and CAP for the PEO and Non-PEO NEOs.
4891
        
Compensation Actually Paid vs. Net Income     The graph below reflects the relationship between the PEO CAP and Average Non-PEO NEOs CAP and our GAAP Net Income.
5055
        
Compensation Actually Paid vs. Company Selected Measure     The graph below reflects the relationship between the PEO CAP and Average Non-PEO NEOs CAP and the Company’s Adjusted EBITDA.
5260
        
Total Shareholder Return Vs Peer Group     The graph below illustrates the relationship between our TSR and the Peer Group TSR over the five fiscal years ending May 31, 2026 based on a hypothetical investment of $100 on May 31, 2021, as well as the relationship between TSR and CAP for the PEO and Non-PEO NEOs.
4891
        
Total Shareholder Return Amount     $ 57 65 113 136 84
Peer Group Total Shareholder Return Amount     70 96 102 100 96
Net Income (Loss)     $ 290,000,000 $ 357,000,000 $ 726,000,000 $ 1,009,000,000 $ 201,000,000
Company Selected Measure Amount     1,147,000,000 1,260,000,000 1,461,000,000 1,249,000,000 742,000,000
PEO Name Michael J. Smith Thomas P. Werner Michael J. Smith Thomas P. Werner Thomas P. Werner Thomas P. Werner Thomas P. Werner
Additional 402(v) Disclosure     Amounts reported in these columns represent (i) the total compensation reported in the Summary Compensation Table (“SCT”) for the applicable year in the case of our current PEO, Mr. Smith and our former PEO, Mr. Werner, and (ii) the average of the total compensation reported in the SCT for the applicable year for our Non-PEO NEOs reported for the applicable year.Amounts reported in these columns represent compensation actually paid; adjustments were made to the amounts reported in the SCT for the applicable year. A reconciliation of the adjustments for our current PEO, Mr. Smith, our former PEO, Mr. Werner, and for the average of the Non-PEO NEOs is set forth in the following table, which describes the adjustments, each of which is prescribed by the SEC rules, to calculate the CAP Amounts from SCT amounts.Total Shareholder Return (TSR) is cumulative for the measurement periods beginning on May 31, 2021 and ending on each of our 2022, 2023, 2024, 2025, and 2026 fiscal year ends, respectively, calculated in accordance with Item 201(e) of Regulation S-K.Adjusted EBITDA is the company-selected measure. Values shown reflect Adjusted EBITDA as calculated for purposes of our executive compensation program for the applicable reporting fiscal year (a non-GAAP financial measure). See Appendix B in this Proxy Statement for a reconciliation from GAAP reported results. Total Shareholder Return (TSR) is cumulative for the measurement periods beginning on May 31, 2021 and ending on each of our 2022, 2023, 2024, 2025 and 2026 fiscal year ends, respectively, calculated in accordance with Item 201(e) of Regulation S-K.        
Measure:: 1              
Pay vs Performance Disclosure              
Name     Adjusted EBITDA        
Measure:: 2              
Pay vs Performance Disclosure              
Name     Net Sales        
Measure:: 3              
Pay vs Performance Disclosure              
Name     Free Cash Flow        
Measure:: 4              
Pay vs Performance Disclosure              
Name     Relative Shareholder Return        
Measure:: 5              
Pay vs Performance Disclosure              
Name     Absolute Shareholder Return        
Mr. Smith [Member]              
Pay vs Performance Disclosure              
PEO Total Compensation Amount     $ 16,004,614 $ 2,688,616      
PEO Actually Paid Compensation Amount     11,635,875 (1,974,061)      
Mr. Werner [Member]              
Pay vs Performance Disclosure              
PEO Total Compensation Amount       5,919,862 $ 7,037,026 $ 20,352,276 $ 7,858,113
PEO Actually Paid Compensation Amount       $ (10,590,201) $ (5,774,697) $ 40,007,566 $ 4,612,617
PEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0        
PEO | Pension Adjustments Service Cost              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0        
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (13,084,493)        
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     9,228,903        
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (367,926)        
PEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0        
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (145,223)        
PEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0        
PEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0        
Non-PEO NEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0        
Non-PEO NEO | Pension Adjustments Service Cost              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     0        
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (9,114,235)        
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     6,842,049        
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (112,020)        
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     27,017        
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (163,359)        
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     (66,698)        
Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year              
Pay vs Performance Disclosure              
Adjustment to Compensation, Amount     $ 0