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Income Taxes Income Tax Reconciliation (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Feb. 22, 2019 | Feb. 23, 2018 | Feb. 24, 2017
Valuation Allowance, Deferred Tax Assets, Reversal of Valuation Allowances, Amount |  | $ 1.7 |  |
U.S. federal statutory tax rate |  | 21.00% | 32.90% | 35.00%
Tax expense at the U.S. federal statutory rate |  | $ 34.4 | $ 53.2 | $ 68.7
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount | [1] | (1.6) | 27.9 | 0.0
Foreign investment tax credits | [2] | 0.0 | (1.6) | 0.0
Valuation allowance provisions and adjustments | [3] | (1.3) | 0.4 | (2.2)
COLI income | [4] | (1.6) | (3.4) | (3.3)
Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Amount | [5] | 7.8 | 1.4 | (2.0)
State and local income taxes, net of federal |  | 5.7 | 6.7 | 6.5
Foreign operations, less applicable foreign tax credits | [6] | (0.8) | 4.0 | 9.3
Research tax credit |  | (2.9) | (2.3) | (1.8)
Tax reserve adjustments | [7] | 0.0 | (0.2) | (5.3)
Other |  | (1.8) | (5.3) | 1.8
Income tax expense |  | 37.9 | 80.8 | 71.7
income tax expense increase/decrease due to rate change |  | $ 27.9 |  |
FRANCE |  |  |  |
income tax expense increase/decrease due to rate change |  |  | 4.0 | $ 7.9
UNITED KINGDOM |  |  |  |
income tax expense increase/decrease due to rate change |  |  | $ 1.5 |
[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 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 death benefit gains 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] | (6)Reductions to the French corporate tax rate resulted in the revaluation of certain deferred tax assets of our French tax group, causing an increase to income tax expense of $4.0 and $7.9 in 2018 and 2017, respectively. During 2017, reductions to the United Kingdom corporate tax rate increased tax expense by $1.5.
[7] | Adjustments in 2017 related to a French income tax audit that was settled in 2017.

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