XML 90 R75.htm IDEA: XBRL DOCUMENT v3.8.0.1
Employee Benefit Plan Obligations Plan Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Feb. 23, 2018
Feb. 24, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount $ 0.0 $ 0.0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount $ 0.0 $ 0.0
Defined Benefit Plan, Actual Plan Asset Allocations 100.00% 100.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 100.00% 100.00%
Defined Benefit Plan, Fair Value of Plan Assets $ 33.1 $ 46.7
Equity Securities [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Actual Plan Asset Allocations 78.00% 50.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 91.00% 54.00%
Debt Securities [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Actual Plan Asset Allocations 17.00% 29.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 8.00% 27.00%
Real Estate [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Actual Plan Asset Allocations 4.00% 2.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 0.00% 0.00%
Defined Benefit Plan, Fair Value of Plan Assets $ 1.2 $ 0.8
All Other Plan Assets [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Actual Plan Asset Allocations [1] 1.00% 19.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage [1] 1.00% 19.00%
Cash and Cash Equivalents [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets $ 0.2 $ 6.3
Equity Securities, International [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 25.8 23.4
Fixed Income Funds [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 5.5 13.6
Group Annuity Contract [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets [2]   1.9
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 1.9 2.0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease) 0.0 0.1
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements (1.9) (0.2)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 0.0 1.9
Guaranteed Insurance Contracts [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets [3] 0.4 0.7
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 0.7 1.0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease) 0.1 0.0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements (0.4) (0.3)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 0.4 0.7
Fair Value, Inputs, Level 1 [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.2 7.1
Fair Value, Inputs, Level 1 [Member] | Real Estate [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.0 0.8
Fair Value, Inputs, Level 1 [Member] | Cash and Cash Equivalents [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.2 6.3
Fair Value, Inputs, Level 1 [Member] | Equity Securities, International [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.0 0.0
Fair Value, Inputs, Level 1 [Member] | Fixed Income Funds [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.0 0.0
Fair Value, Inputs, Level 1 [Member] | Group Annuity Contract [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets [2]   0.0
Fair Value, Inputs, Level 1 [Member] | Guaranteed Insurance Contracts [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets [3] 0.0 0.0
Fair Value, Inputs, Level 2 [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 32.5 37.0
Fair Value, Inputs, Level 2 [Member] | Real Estate [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 1.2 0.0
Fair Value, Inputs, Level 2 [Member] | Cash and Cash Equivalents [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.0 0.0
Fair Value, Inputs, Level 2 [Member] | Equity Securities, International [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 25.8 23.4
Fair Value, Inputs, Level 2 [Member] | Fixed Income Funds [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 5.5 13.6
Fair Value, Inputs, Level 2 [Member] | Group Annuity Contract [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets [2]   0.0
Fair Value, Inputs, Level 2 [Member] | Guaranteed Insurance Contracts [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets [3] 0.0 0.0
Fair Value, Inputs, Level 3 [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.4 2.6
Fair Value, Inputs, Level 3 [Member] | Real Estate [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.0 0.0
Fair Value, Inputs, Level 3 [Member] | Cash and Cash Equivalents [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.0 0.0
Fair Value, Inputs, Level 3 [Member] | Equity Securities, International [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.0 0.0
Fair Value, Inputs, Level 3 [Member] | Fixed Income Funds [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets 0.0 0.0
Fair Value, Inputs, Level 3 [Member] | Group Annuity Contract [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets [2]   1.9
Fair Value, Inputs, Level 3 [Member] | Guaranteed Insurance Contracts [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Fair Value of Plan Assets [3] $ 0.4 $ 0.7
[1] Represents guaranteed insurance contracts, money market funds and cash
[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.
[3] 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.