Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 04, 2023	Feb. 26, 2022
Deferred tax assets:
Accounts receivable	$ 26,769	$ 22,958
Accrued expenses	155,796	99,826
Pension, retirement and other benefits	40,100	67,686
Long-lived assets	364,618	299,507
Operating lease liabilities	781,721	883,713
Credits	21,955	22,917
Net operating losses	1,200,659	1,487,875
Other	271	225
Total gross deferred tax assets	2,591,889	2,884,707
Valuation allowance	(1,649,193)	(1,822,710)
Total deferred tax assets	942,696	1,061,997
Deferred tax liabilities:
Outside basis difference	5,622	5,682
Inventory	244,554	251,221
Operating lease right of use assets	680,152	785,023
Total gross deferred tax liabilities	930,328	1,041,926
Net deferred tax assets	$ 12,368	$ 20,071