v3.26.1
Employee Benefit Plan, Schedule, Asset Held for Investment (Details) - EBP 001 - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
EBP, Schedule of Asset Held for Investment [Line Items]    
Total investments $ 8,247,407,098 $ 7,859,328,486
Notes receivable from participants 177,241,098 $ 159,639,599
EBP, Asset Held for Investment $ 8,424,648,196  
Minimum    
EBP, Schedule of Asset Held for Investment [Line Items]    
EBP, Asset Held for Investment, Participant Loan, Interest Rate 3.25%  
Maximum    
EBP, Schedule of Asset Held for Investment [Line Items]    
EBP, Asset Held for Investment, Participant Loan, Interest Rate 8.50%  
Investment, Identifier [Axis]: American Funds EuroPacific Growth Fund (Class R-6)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Issuer Name [Extensible Enumeration] American Funds EuroPacific Growth Fund (Class R-6) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Mutual Funds  
Number of Units/Shares 1,209,364  
Current Value $ 73,263,277  
Investment, Identifier [Axis]: Baird Aggregate Bond Fund (Institutional Shares)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Issuer Name [Extensible Enumeration] Baird Aggregate Bond Fund (Institutional Shares) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Mutual Funds  
Number of Units/Shares 4,666,543  
Current Value $ 46,385,434  
Investment, Identifier [Axis]: Dimensional Fund Advisors U.S. Small Cap Portfolio (I) Fund    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Issuer Name [Extensible Enumeration] Dimensional Fund Advisors U.S. Small Cap Portfolio (I) Fund [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Mutual Funds  
Number of Units/Shares 1,265,500  
Current Value $ 66,160,317  
Investment, Identifier [Axis]: Invesco Stable Value Trust Fund (Class B1)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Issuer Name [Extensible Enumeration] Invesco Stable Value Trust Fund (Class B1) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 50,876,720  
Current Value $ 138,640,640  
Investment, Identifier [Axis]: Publix Stock Fund Common stock of Publix Super Markets, Inc.    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] Common stock of Publix Super Markets, Inc. [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Publix Stock  
Number of Units/Shares 279,232,032  
Current Value $ 5,486,909,421  
Investment, Identifier [Axis]: Publix Stock Fund State Street Institutional U.S. Government Money Market Fund (Premier Class)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Institutional U.S. Government Money Market Fund (Premier Class) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Mutual Funds  
Number of Units/Shares 2,493,892  
Current Value $ 45,273,261  
Investment, Identifier [Axis]: State Street S&P 500 Index Fund (Class II)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street S&P 500 Index Fund (Class II) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 15,626,494  
Current Value $ 476,639,305  
Investment, Identifier [Axis]: State Street S&P Mid Cap Index Fund (Class XIV)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street S&P Mid Cap Index Fund (Class XIV) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 3,571,392  
Current Value $ 97,763,273  
Investment, Identifier [Axis]: State Street Target Retirement 2025 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2025 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 4,920,159  
Current Value $ 55,157,752  
Investment, Identifier [Axis]: State Street Target Retirement 2030 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2030 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 9,426,245  
Current Value $ 108,791,160  
Investment, Identifier [Axis]: State Street Target Retirement 2035 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2035 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 10,309,977  
Current Value $ 121,437,361  
Investment, Identifier [Axis]: State Street Target Retirement 2040 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2040 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 9,363,308  
Current Value $ 111,669,766  
Investment, Identifier [Axis]: State Street Target Retirement 2045 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2045 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 9,334,975  
Current Value $ 112,454,575  
Investment, Identifier [Axis]: State Street Target Retirement 2050 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2050 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 10,878,468  
Current Value $ 132,163,285  
Investment, Identifier [Axis]: State Street Target Retirement 2055 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2055 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 11,763,735  
Current Value $ 143,488,214  
Investment, Identifier [Axis]: State Street Target Retirement 2060 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2060 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 10,233,500  
Current Value $ 124,825,483  
Investment, Identifier [Axis]: State Street Target Retirement 2065 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2065 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 7,368,265  
Current Value $ 89,856,511  
Investment, Identifier [Axis]: State Street Target Retirement 2070 Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement 2070 Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 1,677,453  
Current Value $ 20,460,552  
Investment, Identifier [Axis]: State Street Target Retirement Fund (Class I)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Party-in-Interest true  
Investment, Issuer Name [Extensible Enumeration] State Street Target Retirement Fund (Class I) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 2,799,881  
Current Value $ 30,710,574  
Investment, Identifier [Axis]: T. Rowe Price Large Cap Growth Trust Fund (Class D)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Issuer Name [Extensible Enumeration] T. Rowe Price Large Cap Growth Trust Fund (Class D) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 22,759,823  
Current Value $ 622,481,160  
Investment, Identifier [Axis]: T. Rowe Price U.S. Value Equity Trust Fund (Class B)    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investment, Issuer Name [Extensible Enumeration] T. Rowe Price U.S. Value Equity Trust Fund (Class B) [Member]  
Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Participant-Directed [Member]  
Investment, Current Value, Type [Extensible Enumeration] Common Collective Trust [Member]  
Number of Units/Shares 2,846,131  
Current Value $ 142,875,777