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Employee Benefit Plan Obligations Employee Benefit Plan Obligation (Tables) | 12 Months Ended
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Feb. 23, 2018
Defined Benefit Plan Disclosure [Line Items] |
Employee Benefit Plan Obligation Summary [Table Text Block] |
Employee Benefit Plan Obligations (net) | February 23, 2018 | February 24, 2017
Defined contribution retirement plans | $ | 23.9 |  |  | $ | 23.8 |  |
Post-retirement medical benefits | 43.4 |  |  | 46.0 |  |
Defined benefit pension plans | 47.0 |  |  | 50.1 |  |
Deferred compensation plans and agreements | 55.2 |  |  | 49.2 |  |
| $ | 169.5 |  |  | $ | 169.1 |  |
Employee benefit plan assets |  |  |  |
Short-term asset | $ | — |  |  | $ | 0.2 |  |
Long-term asset | 0.5 |  |  | — |  |
| $ | 0.5 |  |  | $ | 0.2 |  |
Employee benefit plan obligations |  |  |  |
Current portion | $ | 39.2 |  |  | $ | 35.0 |  |
Long-term portion | 130.8 |  |  | 134.3 |  |
| $ | 170.0 |  |  | $ | 169.3 |  |
Schedule of Accumulated and Projected Benefit Obligations [Table Text Block] | The funded status of our defined benefit pension plans (excluding our investments in COLI policies) is as follows:
Defined Benefit Pension Plan Obligations | February 23, 2018 | February 24, 2017
Qualified Plans | Non-qualified Supplemental Retirement Plans | Qualified Plans | Non-qualified Supplemental Retirement Plans
Foreign | Domestic | Foreign
Plan assets | $ | 33.1 |  |  | $ | — |  |  | $ | 7.9 |  |  | $ | 38.8 |  |  | $ | — |  |
Projected benefit plan obligations | 47.5 |  |  | 32.6 |  |  | 7.9 |  |  | 55.1 |  |  | 33.8 |  |
Funded status | $ | (14.4 | ) |  | $ | (32.6 | ) |  | $ | — |  |  | $ | (16.3 | ) |  | $ | (33.8 | ) |
Short-term asset | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 0.2 |  |  | $ | — |  |
Long-term asset | 0.5 |  |  | — |  |  | — |  |  | — |  |  | — |  |
Current liability | (0.1 | ) |  | (3.8 | ) |  | — |  |  | (0.1 | ) |  | (3.5 | ) |
Long-term liability | (14.8 | ) |  | (28.8 | ) |  | — |  |  | (16.4 | ) |  | (30.3 | ) |
Total benefit plan obligations | $ | (14.4 | ) |  | $ | (32.6 | ) |  | $ | — |  |  | $ | (16.3 | ) |  | $ | (33.8 | ) |
Accumulated benefit obligation | $ | 42.5 |  |  | $ | 32.4 |  |  | $ | 7.9 |  |  | $ | 51.0 |  |  | $ | 33.5 |  |
Schedule of Changes in Fair Value of Plan Assets [Table Text Block] | The following tables summarize our defined benefit pension and post-retirement plans.
| Defined Benefit Pension Plans | Post-Retirement Plans
February 23, 2018 | February 24, 2017 | February 23, 2018 | February 24, 2017
Change in plan assets: |  |  |  |  |  |  |  |
Fair value of plan assets, beginning of year | $ | 46.7 |  |  | $ | 47.3 |  |  | $ | — |  |  | $ | — |  |
Actual return on plan assets | 2.4 |  |  | 4.7 |  |  | — |  |  | — |  |
Employer contributions | 4.5 |  |  | 6.0 |  |  | 3.4 |  |  | 5.2 |  |
Plan participants’ contributions | — |  |  | — |  |  | 1.9 |  |  | 2.3 |  |
Estimated Medicare subsidies received | — |  |  | — |  |  | 0.1 |  |  | 0.1 |  |
Expenses | (0.2 | ) |  | (0.2 | ) |  | — |  |  | — |  |
Currency changes | 3.6 |  |  | (2.7 | ) |  | — |  |  | — |  |
Benefits paid | (23.9 | ) |  | (8.4 | ) |  | (5.4 | ) |  | (7.6 | ) |
Fair value of plan assets, end of year | 33.1 |  |  | 46.7 |  |  | — |  |  | — |  |
Schedule of Changes in Projected Benefit Obligations [Table Text Block] |
Change in benefit obligations: |  |  |  |  |  |  |  |
Benefit plan obligations, beginning of year | 96.8 |  |  | 93.4 |  |  | 46.0 |  |  | 66.2 |  |
Service cost | 2.7 |  |  | 2.8 |  |  | 0.2 |  |  | 0.5 |  |
Interest cost | 2.1 |  |  | 3.1 |  |  | 1.7 |  |  | 2.8 |  |
Net actuarial (gain) loss | (3.3 | ) |  | 9.4 |  |  | (1.2 | ) |  | (18.3 | ) |
Plan participants’ contributions | — |  |  | — |  |  | 1.9 |  |  | 2.3 |  |
Medicare subsidies received | — |  |  | — |  |  | 0.1 |  |  | 0.1 |  |
Settlements | (0.1 | ) |  | — |  |  | — |  |  | — |  |
Currency changes | 5.8 |  |  | (3.5 | ) |  | 0.1 |  |  | — |  |
Benefits paid | (23.9 | ) |  | (8.4 | ) |  | (5.4 | ) |  | (7.6 | ) |
Benefit plan obligations, end of year | 80.1 |  |  | 96.8 |  |  | 43.4 |  |  | 46.0 |  |
Funded status | $ | (47.0 | ) |  | $ | (50.1 | ) |  | $ | (43.4 | ) |  | $ | (46.0 | ) |
Schedule of Amounts Recognized in Balance Sheet [Table Text Block] |
Amounts recognized on the Consolidated Balance Sheets: |  |  |  |  |  |  |  |
Short-term asset | $ | — |  |  | $ | 0.2 |  |  | $ | — |  |  | $ | — |  |
Long-term asset | 0.5 |  |  | — |  |  | — |  |  | — |  |
Current liability | (3.9 | ) |  | (3.6 | ) |  | (3.5 | ) |  | (3.9 | ) |
Long-term liability | (43.6 | ) |  | (46.7 | ) |  | (39.9 | ) |  | (42.1 | ) |
Net amount recognized | $ | (47.0 | ) |  | $ | (50.1 | ) |  | $ | (43.4 | ) |  | $ | (46.0 | ) |
Schedule of Changes in Accumulated Postemployment Benefit Obligations [Table Text Block] |
Amounts recognized in accumulated other comprehensive income—pretax: |  |  |  |  |  |  |  |
Actuarial loss (gain) | $ | 12.7 |  |  | $ | 23.4 |  |  | $ | (26.0 | ) |  | $ | (28.4 | ) |
Prior service credit | (0.5 | ) |  | (0.7 | ) |  | (2.3 | ) |  | (9.3 | ) |
Total amounts recognized in accumulated other comprehensive income—pretax | $ | 12.2 |  |  | $ | 22.7 |  |  | $ | (28.3 | ) |  | $ | (37.7 | ) |
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] |
Estimated amounts to be amortized from accumulated other comprehensive income into net periodic benefit cost over the next fiscal year: |  |  |  |  |  |  |  |
Actuarial loss (gain) | $ | 0.3 |  |  | $ | 7.6 |  |  | $ | (3.8 | ) |  | $ | (3.7 | ) |
Prior service credit | (0.2 | ) |  | (0.2 | ) |  | (2.3 | ) |  | (7.0 | ) |
Total amounts recognized in accumulated other comprehensive income—pretax | $ | 0.1 |  |  | $ | 7.4 |  |  | $ | (6.1 | ) |  | $ | (10.7 | ) |
Schedule of Net Benefit Costs [Table Text Block] |
| Pension Plans | Post-Retirement Plans
Year Ended | Year Ended
February 23, 2018 | February 24, 2017 | February 26, 2016 | February 23, 2018 | February 24, 2017 | February 26, 2016
Components of expense: |  |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 2.7 |  |  | $ | 2.8 |  |  | $ | 3.1 |  |  | $ | 0.2 |  |  | $ | 0.5 |  |  | $ | 0.7 |  |
Interest cost | 2.1 |  |  | 3.1 |  |  | 3.0 |  |  | 1.7 |  |  | 2.8 |  |  | 2.6 |  |
Amortization of net loss (gain) | 0.5 |  |  | 0.7 |  |  | 0.9 |  |  | (3.7 | ) |  | (0.8 | ) |  | 0.1 |  |
Amortization of prior year service credit | (0.2 | ) |  | (0.2 | ) |  | (0.2 | ) |  | (7.0 | ) |  | (8.6 | ) |  | (9.0 | ) |
Expected return on plan assets | (1.4 | ) |  | (1.9 | ) |  | (2.5 | ) |  | — |  |  | — |  |  | — |  |
Settlement | 7.1 |  |  | 0.9 |  |  | — |  |  | — |  |  | — |  |  | — |  |
Net expense (credit) recognized in Consolidated Statements of Income | 10.8 |  |  | 5.4 |  |  | 4.3 |  |  | (8.8 | ) |  | (6.1 | ) |  | (5.6 | ) |
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] |
Other changes in plan assets and benefit obligations recognized in other comprehensive income (pre-tax): |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss (gain) | (4.3 | ) |  | 6.9 |  |  | (2.4 | ) |  | (1.2 | ) |  | (18.3 | ) |  | (7.0 | ) |
Amortization of gain (loss) | (0.5 | ) |  | (1.7 | ) |  | (0.9 | ) |  | 3.7 |  |  | 0.8 |  |  | (0.1 | ) |
Amortization of prior year service credit | 0.2 |  |  | 0.2 |  |  | 0.2 |  |  | 7.0 |  |  | 8.6 |  |  | 9.0 |  |
Losses recognized as part of the curtailment / settlement | (7.3 | ) |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |
Total recognized in other comprehensive income | (11.9 | ) |  | 5.4 |  |  | (3.1 | ) |  | 9.5 |  |  | (8.9 | ) |  | 1.9 |  |
Total recognized in net periodic benefit cost and other comprehensive income (pre-tax) | $ | (1.1 | ) |  | $ | 10.8 |  |  | $ | 1.2 |  |  | $ | 0.7 |  |  | $ | (15.0 | ) |  | $ | (3.7 | ) |
Pension and Other Post-Retirement Liability Adjustments [Table Text Block] |
Pension and Other Post-Retirement Accumulated Other Comprehensive Income (Loss) Changes | Before Tax Amount | Tax (Expense) Benefit | Net of Tax Amount
Balance as of February 26, 2016 | $ | 10.3 |  |  | $ | 0.4 |  |  | $ | 10.7 |  |
Amortization of prior service cost (credit) included in net periodic pension cost | (8.7 | ) |  | 3.4 |  |  | (5.3 | ) |
Net prior service (cost) credit during period | (8.7 | ) |  | 3.4 |  |  | (5.3 | ) |
Net actuarial gain (loss) arising during period | 11.4 |  |  | (5.4 | ) |  | 6.0 |  |
Amortization of net actuarial (gain) loss included in net periodic pension cost | 0.8 |  |  | (0.2 | ) |  | 0.6 |  |
Net actuarial gain (loss) during period | 12.2 |  |  | (5.6 | ) |  | 6.6 |  |
Foreign currency translation adjustments | 1.2 |  |  | (0.2 | ) |  | 1.0 |  |
Current period change | 4.7 |  |  | (2.4 | ) |  | 2.3 |  |
Balance as of February 24, 2017 | $ | 15.0 |  |  | $ | (2.0 | ) |  | $ | 13.0 |  |
Amortization of prior service cost (credit) included in net periodic pension cost | (7.1 | ) |  | 2.9 |  |  | (4.2 | ) |
Net prior service (cost) credit during period | (7.1 | ) |  | 2.9 |  |  | (4.2 | ) |
Net actuarial gain (loss) arising during period | 5.5 |  |  | (1.5 | ) |  | 4.0 |  |
Amortization of net actuarial (gain) loss included in net periodic pension cost | (3.2 | ) |  | 1.4 |  |  | (1.8 | ) |
Gains (losses) recognized as a part of the settlement | 7.1 |  |  | (2.4 | ) |  | 4.7 |  |
Net actuarial gain (loss) during period | 9.4 |  |  | (2.5 | ) |  | 6.9 |  |
Foreign currency translation adjustments | (1.2 | ) |  | 0.2 |  |  | (1.0 | ) |
Current period change | 1.1 |  |  | 0.6 |  |  | 1.7 |  |
Balance as of February 23, 2018 | $ | 16.1 |  |  | $ | (1.4 | ) |  | $ | 14.7 |  |
Schedule of Assumptions Used [Table Text Block] |
Weighted-Average Assumptions | Pension Plans | Post-Retirement Plans
Year Ended | Year Ended
February 23, 2018 | February 24, 2017 | February 26, 2016 | February 23, 2018 | February 24, 2017 | February 26, 2016
Weighted-average assumptions used to determine benefit obligations: |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.90 | % |  | 2.90 | % |  | 3.30 | % |  | 3.97 | % |  | 3.86 | % |  | 4.34 | % |
Rate of salary progression | 3.60 | % |  | 2.70 | % |  | 2.30 | % |  |  |  |  |  |  |
Weighted-average assumptions used to determine net periodic benefit cost: |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.80 | % |  | 3.60 | % |  | 3.70 | % |  | 3.84 | % |  | 4.29 | % |  | 3.72 | % |
Expected return on plan assets | 4.80 | % |  | 4.30 | % |  | 4.20 | % |  |  |  |  |  |  |
Rate of salary progression | 3.50 | % |  | 2.80 | % |  | 2.80 | % |  |  |  |  |  |  |
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block] | A one percentage point change in assumed healthcare cost trend rates would have had the following effects as of February 23, 2018:
Health Cost Trend Sensitivity | One percentage point increase | One percentage point decrease
Effect on total of service and interest cost components | $ | — |  |  | $ | — |  |
Effect on post-retirement benefit obligation | $ | 0.2 |  |  | $ | (0.2 | ) |
Schedule of Allocation of Plan Assets [Table Text Block] |
Asset Category | February 23, 2018 | February 24, 2017
Actual Allocations | Target Allocations | Actual Allocations | Target Allocations
Equity securities | 78 | % |  | 91 | % |  | 50 | % |  | 54 | % |
Debt securities | 17 |  |  | 8 |  |  | 29 |  |  | 27 |  |
Real estate | 4 |  |  | — |  |  | 2 |  |  | — |  |
Other (1) | 1 |  |  | 1 |  |  | 19 |  |  | 19 |  |
Total | 100 | % |  | 100 | % |  | 100 | % |  | 100 | % |
________________________
(1) | Represents guaranteed insurance contracts, money market funds and cash.
The fair value of the pension plan assets as of February 23, 2018 and February 24, 2017, by asset category are as follows:
Fair Value of Pension Plan Assets | February 23, 2018
Level 1 | Level 2 | Level 3 | Total
Cash and cash equivalents | $ | 0.2 |  |  | $ | — |  |  | $ | — |  |  | $ | 0.2 |  |
Equity securities: |  |  |  |  |  |  |  |
International | — |  |  | 25.8 |  |  | — |  |  | 25.8 |  |
Fixed income securities: |  |  |  |  |  |  |  |
Bond funds | — |  |  | 5.5 |  |  | — |  |  | 5.5 |  |
Other investments: |  |  |  |  |  |  |  |
Guaranteed insurance contracts (1) | — |  |  | — |  |  | 0.4 |  |  | 0.4 |  |
Property and property funds | — |  |  | 1.2 |  |  | — |  |  | 1.2 |  |
| $ | 0.2 |  |  | $ | 32.5 |  |  | $ | 0.4 |  |  | $ | 33.1 |  |
Fair Value of Pension Plan Assets | February 24, 2017
Level 1 | Level 2 | Level 3 | Total
Cash and cash equivalents | $ | 6.3 |  |  | $ | — |  |  | $ | — |  |  | $ | 6.3 |  |
Equity securities: |  |  |  |  |  |  |  |
International | — |  |  | 23.4 |  |  | — |  |  | 23.4 |  |
Fixed income securities: |  |  |  |  |  |  |  |
Bond funds | — |  |  | 13.6 |  |  | — |  |  | 13.6 |  |
Other investments: |  |  |  |  |  |  |  |
Guaranteed insurance contracts (1) | — |  |  | — |  |  | 0.7 |  |  | 0.7 |  |
Group annuity contract (2) | — |  |  | — |  |  | 1.9 |  |  | 1.9 |  |
Property funds | 0.8 |  |  | — |  |  | — |  |  | 0.8 |  |
| $ | 7.1 |  |  | $ | 37.0 |  |  | $ | 2.6 |  |  | $ | 46.7 |  |
________________________
(1) | Guaranteed insurance contracts are valued at book value, which approximates fair value, and are calculated using the prior year balance plus or minus investment returns and changes in cash flows.
(2) | Group annuity contracts were valued utilizing a discounted cash flow model. The term “cash flow” refers to the future principal and interest payments we expected to receive on a given asset in the general account. The model projected future cash flows separately for each investment period and each category of investment.
There were no material transfers between Level 1 and Level 2 of the fair value hierarchy for any periods presented.
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block] | Below is a roll-forward of plan assets measured at estimated fair value using Level 3 inputs for the years ended February 23, 2018 and February 24, 2017:
Roll-forward of Fair Value Using Level 3 Inputs | Group Annuity Contract | Guaranteed Insurance Contracts
Balance as of February 26, 2016 | $ | 2.0 |  |  | $ | 1.0 |  |
Unrealized return on plan assets, including changes in foreign exchange rates | 0.1 |  |  | — |  |
Purchases, sales, and other, net | (0.2 | ) |  | (0.3 | ) |
Balance as of Februa ry 24, 2017 | $ | 1.9 |  |  | $ | 0.7 |  |
Unrealized return on plan assets, including changes in foreign exchange rates | — |  |  | 0.1 |  |
Purchases, sales, and other, net | (1.9 | ) |  | (0.4 | ) |
Balance as of Februa ry 23, 2018 | $ | — |  |  | $ | 0.4 |  |
Schedule of Expected Benefit Payments [Table Text Block] | The estimated future benefit payments under our pension and post-retirement plans are as follows:
| Fiscal Year Ending in February | Pension Plans | Post-retirement Plans
| 2019 | $ | 5.0 |  |  | $ | 3.6 |  |
| 2020 | 4.4 |  |  | 3.6 |  |
| 2021 | 3.7 |  |  | 3.5 |  |
| 2022 | 3.7 |  |  | 3.5 |  |
| 2023 | 4.5 |  |  | 3.5 |  |
| 2024 - 2028 | 25.6 |  |  | 16.1 |  |

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- Definition Tabular disclosure of the changes in plan assets and benefit obligations recognized in other comprehensive income (loss) during the period. + References No definition available. + Details
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- Definition Tabular disclosure of the effect of a one-percentage-point increase and the effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs and the accumulated postretirement benefit obligation for health care benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (m) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets of pension plans and/or other employee benefit plans for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(4) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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