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Employee and Retiree Benefits - Postretirement Health Care and Deferred Compensation Benefits (Details) - USD ($) $ in Millions | Aug. 31, 2024 | Aug. 26, 2023
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Retirement Benefits [Abstract] |  |
Non-qualified deferred compensation | $ 5.2 | $ 6.7
Supplemental executive retirement plan | 0.9 | 1.2
Executive deferred compensation plan | 2.2 | 1.8
Total deferred compensation benefits | 8.3 | 9.7
Less current portion | 1.7 | 1.8
Deferred compensation benefits, net of current portion | $ 6.6 | $ 7.9

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