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Employee Benefit Plan Obligations (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Feb. 26, 2021 | Feb. 28, 2020 | Feb. 22, 2019
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Contribution Obligation | $ 12.1 | $ 28.1 |
Deferred Compensation Liability, Current and Noncurrent | 60.5 | 58.8 |
Employee Benefit Plan Obligations, Total | 177.8 | 193.0 |
Employee benefit plan obligations | 24.9 | 44.7 |
Liability, Defined Benefit Plan, Noncurrent | (152.9) | (148.3) |
Liability, Defined Benefit Plan | 177.8 | 193.0 |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 31.3 |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 4.2 |  |
Defined Benefit Plan, Plan Assets, Amount | 33.2 | 31.3 |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax | (11.7) | (7.4) | $ 9.5
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax | (2.8) | (16.9) |
Pension and other post-retirement liability adjustments | (4.3) | (16.9) | (6.6)
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax | (1.1) | (3.0) |
Other Postretirement Benefit Plans, Defined Benefit [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position | 42.7 | 44.3 |
Employee benefit plan obligations | 3.6 | 3.3 |
Liability, Defined Benefit Plan, Noncurrent | (39.1) | (41.0) |
Liability, Defined Benefit Plan | 42.7 | 44.3 |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 0.0 | 0.0 |
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) | 0.0 | 0.0 |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 3.5 | 4.0 |
Defined Benefit Plan, Contributions by Plan Participants (Deprecated 2017-01-31) | 2.3 | 1.9 |
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) | 0.0 | 0.0 |
Defined Benefit Plan, Plan Assets, Amount | 0.0 | 0.0 | 0.0
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Defined Benefit Plan, Benefit Obligation | 44.3 | 40.7 |
Defined Benefit Plan, Service Cost | 0.1 | 0.1 | 0.1
Defined Benefit Plan, Interest Cost | 1.1 | 1.6 | 1.6
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment | 0.0 | 0.0 |
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) | 0.5 | 5.9 |
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) | 0.2 | 0.0 |
Defined Benefit Plan, Benefits Paid from both Plan Assets and Company Assets | (5.8) | (5.9) |
Defined Benefit Plan, Benefit Obligation | 42.7 | 44.3 | 40.7
Defined Benefit Plan, Funded (Unfunded) Status of Plan | (42.7) | (44.3) |
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax | (11.1) | (13.6) |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax | (11.1) | (13.6) |
Defined Benefit Plan, Amortization of Gain (Loss) | (2.1) | (3.3) | (3.8)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) | 0.0 | 0.0 | (2.2)
Defined Benefit Plan, Expected Return (Loss) on Plan Assets | 0.0 | 0.0 | 0.0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) | (0.9) | (1.6) | $ (4.3)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost, before Tax | $ 0.0 | $ 0.0 |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 2.58% | 2.58% | 4.08%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate | 2.56% | 4.06% | 3.95%
Pension Plans, Defined Benefit [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position | $ 62.5 | $ 61.8 |
Employee benefit plan obligations | 3.3 | 2.9 |
Liability, Defined Benefit Plan, Noncurrent | (49.4) | (48.3) |
Liability, Defined Benefit Plan | 52.7 | 51.2 |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 31.3 | 30.0 |
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) | (0.3) | 1.6 |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 4.1 | 4.9 |
Defined Benefit Plan, Contributions by Plan Participants (Deprecated 2017-01-31) | 0.0 | 0.0 |
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) | 2.9 | (0.3) |
Defined Benefit Plan, Plan Assets, Amount | 33.2 | 31.3 | $ 30.0
Defined Benefit Plan, Plan Assets, Benefits Paid | 4.8 | 4.9 |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Defined Benefit Plan, Benefit Obligation | 82.5 | 76.2 |
Defined Benefit Plan, Service Cost | 1.9 | 1.8 | 2.2
Defined Benefit Plan, Interest Cost | 1.3 | 2.0 | 2.1
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment | 0.1 | 0.0 |
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) | 0.0 | 8.2 |
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) | 4.9 | (0.8) |
Defined Benefit Plan, Benefits Paid from both Plan Assets and Company Assets | (4.8) | (4.9) |
Defined Benefit Plan, Benefit Obligation | 85.9 | 82.5 | 76.2
Defined Benefit Plan, Funded (Unfunded) Status of Plan | (52.7) | (51.2) |
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax | 21.9 | 20.3 |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax | 22.8 | 21.0 |
Defined Benefit Plan, Amortization of Gain (Loss) | 1.1 | 0.4 | 0.3
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) | 0.0 | (0.1) | (0.2)
Defined Benefit Plan, Expected Return (Loss) on Plan Assets | (0.9) | (1.3) | (1.5)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) | 3.4 | 2.8 | $ 2.9
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost, before Tax | $ 0.9 | $ 0.7 |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 1.70% | 1.70% | 2.90%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase | 3.50% | 3.50% | 3.60%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate | 1.70% | 2.70% | 2.90%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets | 3.00% | 3.00% | 4.60%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase | 3.40% | 3.50% | 3.40%
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months | $ 4.2 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Two | 4.8 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Three | 4.9 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Four | 4.4 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Five | 5.2 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter | 21.7 |  |
Non-Qualified Defined Benefit Pension Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employee benefit plan obligations | 3.0 | $ 2.8 |
Liability, Defined Benefit Plan, Noncurrent | (29.2) | (30.2) |
Liability, Defined Benefit Plan | 32.2 | 33.0 |
Defined Benefit Plan, Accumulated Benefit Obligation | 32.1 | 32.9 |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 0.0 |  |
Defined Benefit Plan, Plan Assets, Amount | 0.0 | 0.0 |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Defined Benefit Plan, Benefit Obligation | 33.0 |  |
Defined Benefit Plan, Benefit Obligation | 32.2 | 33.0 |
Defined Benefit Plan, Funded (Unfunded) Status of Plan | 32.2 | 33.0 |
After Medicare Act Subsidy [Member] | Other Postretirement Benefit Plans, Defined Benefit [Member] |  |  |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months | 3.6 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Two | 3.5 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Three | 3.4 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Four | 3.3 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Five | 3.2 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter | 13.8 |  |
Foreign Plan [Member] | Qualified Defined Benefit Pension Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employee benefit plan obligations | 0.3 | 0.1 |
Liability, Defined Benefit Plan, Noncurrent | (20.2) | (18.1) |
Liability, Defined Benefit Plan | 20.5 | 18.2 |
Defined Benefit Plan, Accumulated Benefit Obligation | 48.5 | 44.6 |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |  |
Defined Benefit Plan, Plan Assets, Amount | 31.3 |  |
Defined Benefit Plan, Plan Assets, Amount | 33.2 | 31.3 |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Defined Benefit Plan, Benefit Obligation | 49.5 |  |
Defined Benefit Plan, Benefit Obligation | 53.7 | 49.5 |
Defined Benefit Plan, Funded (Unfunded) Status of Plan | $ 20.5 | $ 18.2 |

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- Definition Total as of balance sheet date of all employee benefit plan obligations, including defined contribution, post-retirement, defined benefit, and deferred compensation plans. + References No definition available. + Details
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- Definition Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax + References No definition available. + Details
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 + Details
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(5) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(5) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 + Details
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- Definition Amount, before tax, after reclassification adjustment, of increase (decrease) in accumulated other comprehensive income from gain (loss) of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(2) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(2) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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