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Income Taxes Income Tax Reconciliation (Details) - USD ($) $ in Millions | 12 Months Ended
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Feb. 28, 2020 | Feb. 22, 2019 | Feb. 23, 2018
U.S. federal statutory tax rate |  | 21.00% |  | 32.90%
Tax expense at the U.S. federal statutory rate |  | $ 51.5 | $ 34.4 | $ 53.2
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount | [1] | 0.0 | (1.6) | 27.9
Foreign investment tax credits | [2] | 0.0 | 0.0 | (1.6)
Valuation allowance provisions and adjustments | [3] | (1.3) | (1.3) | 0.4
COLI income | [4] | (1.4) | (1.6) | (3.4)
Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Amount | [5] | 4.9 | 7.8 | 1.4
State and local income taxes, net of federal |  | 6.4 | 5.7 | 6.7
Foreign operations, less applicable foreign tax credits | [6] | (1.2) | (0.8) | 4.0
Research tax credit |  | (2.9) | (2.9) | (2.3)
Tax reserve adjustments | [7] | 0.0 | 0.0 | (0.2)
Other |  | 1.1 | (1.8) | (5.3)
Income tax expense |  | $ 45.5 | $ 37.9 | $ 80.8
[1] | We remeasured certain deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which are generally 21.0%. Those items that reversed in 2018 were remeasured using a tax rate of 32.9%. We recorded a provisional decrease to deferred tax assets of $23.9 attributable to the rate reduction and a provisional tax liability of $4.0 related to transition tax for 2018. During 2019, we recorded adjustments reducing the impact of the rate change and the transition tax by $1.0 and $0.6 respectively, representing a tax rate reduction of 1%.
[2] | Investment tax credits were granted by the Czech Republic for investments in qualifying manufacturing equipment.
[3] | The valuation allowance provisions were based on current year activity, and the valuation allowance adjustments, including a reversal of valuation allowance at an affiliate in the U.K., were based on various factors, which are further detailed below.
[4] | The increase in the cash surrender value of COLI policies, net of normal insurance expenses, plus maturity benefits are non-taxable
[5] | The foreign operations, less applicable foreign tax credits, amounts include the rate differential between local statutory rates and the U.S. rate on foreign operations.
[6] | Scheduled changes to the French corporate tax rate resulted in the revaluation of certain deferred tax assets of our French tax group.
[7] |

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