Income Taxes - Net Operating Losses and Tax Credits (Details) - USD ($) $ in Thousands	Mar. 04, 2023	Feb. 26, 2022
Valuation Allowance
Valuation allowance	$ 1,636,461	$ 1,818,069
Federal
Net Operating Losses and Tax Credits
Net operating loss carryforwards	2,133,742
Federal business tax credit carryforwards	11,363
Federal | Tax Period Between Fiscal 2029 And 2031 [Member]
Net Operating Losses and Tax Credits
Net operating losses subject to expiration	884,668
Federal | Tax Period Between Fiscal 2032 and 2038
Net Operating Losses and Tax Credits
Net operating losses subject to expiration	193,961
State
Net Operating Losses and Tax Credits
Net operating loss carryforwards	12,279,752
Net tax effect of state carryforwards	$ 754,483