| Compensation and Retirement Disclosure [Abstract] | Period [Axis] |
|---|
2015-06-01 - 2016-05-29 |
|---|
Compensation and Retirement Disclosure [Abstract] | |
Funding Of Defined Benefit Pension Plans And Postretirement Benefit Plans | Fundings related to the defined benefit pension plans and postretirement benefit plans, which are funded on a pay-as-you-go basis, were as follows: | | | | | | | | | | | | | (in millions) | Fiscal Year | | 2016 |
| 2015 |
| 2014 | Defined benefit pension plans funding | $ | 25.4 |
| | $ | 0.4 |
| | $ | 0.4 |
| Postretirement benefit plan funding | 1.1 |
| | 1.1 |
| | 0.9 |
|
|
Change In Benefit Obligation | The following provides a reconciliation of the changes in the plan benefit obligation, fair value of plan assets and the funded status of the plans as of May 29, 2016 and May 31, 2015: | | | | | | | | | | | | | | | | | (in millions) | Defined Benefit Plans | | Postretirement Benefit Plan | | 2016 | | 2015 | | 2016 | | 2015 | Change in Benefit Obligation: | | | | | | | | Benefit obligation at beginning of period | $ | 288.4 |
| | $ | 283.9 |
| | $ | 18.0 |
| | $ | 38.5 |
| Service cost | — |
| | 1.1 |
| | 0.2 |
| | 0.5 |
| Interest cost | 10.6 |
| | 10.0 |
| | 0.8 |
| | 1.0 |
| Plan amendments | — |
| | — |
| | — |
| | (26.9 | ) | Plan settlements | — |
| | (15.8 | ) | | — |
| | — |
| Participant contributions | — |
| | — |
| | — |
| | 0.4 |
| Benefits paid | (15.9 | ) | | (8.6 | ) | | (1.1 | ) | | (1.5 | ) | Actuarial loss | 15.4 |
| | 17.8 |
| | 2.0 |
| | 6.0 |
| Benefit obligation at end of period | $ | 298.5 |
| | $ | 288.4 |
| | $ | 19.9 |
| | $ | 18.0 |
|
|
Change In Plan Assets | | | | | | | | | | | | | | | | | | Change in Plan Assets: | | | | | | | | Fair value at beginning of period | $ | 236.6 |
| | $ | 243.9 |
| | $ | — |
| | $ | — |
| Actual return on plan assets | (4.1 | ) | | 16.7 |
| | — |
| | — |
| Employer contributions | 25.4 |
| | 0.4 |
| | 1.1 |
| | 1.1 |
| Plan settlements | — |
| | (15.8 | ) | | — |
| | — |
| Participant contributions | — |
| | — |
| | — |
| | 0.4 |
| Benefits paid | (15.9 | ) | | (8.6 | ) | | (1.1 | ) | | (1.5 | ) | Fair value at end of period | $ | 242.0 |
| | $ | 236.6 |
| | $ | — |
| | $ | — |
|
|
Reconciliation Of The Plan's Funded Status | | | | | | | | | | | | | | | | | | | | | | |
| |
| Unfunded status at end of period | $ | (56.5 | ) | | $ | (51.8 | ) | | $ | (19.9 | ) | | $ | (18.0 | ) |
|
Funded Status And Amounts Recognized In Accumulated Other Comprehensive Income (Loss) | The following is a detail of the balance sheet components of each of our plans and a reconciliation of the amounts included in accumulated other comprehensive income (loss): | | | | | | | | | | | | | | | | | (in millions) | Defined Benefit Plans | | Postretirement Benefit Plan | | May 29,
2016 |
| May 31,
2015 | | May 29,
2016 |
| May 31,
2015 | Components of the Consolidated Balance Sheets: | | | | | | | | Current liabilities | $ | — |
| | $ | — |
| | $ | 1.3 |
| | $ | 1.1 |
| Noncurrent liabilities | 56.5 |
| | 51.8 |
| | 18.6 |
| | 16.9 |
| Net amounts recognized | $ | 56.5 |
| | $ | 51.8 |
| | $ | 19.9 |
| | $ | 18.0 |
| Amounts Recognized in Accumulated Other Comprehensive Income (Loss), net of tax: | | | | | | | | Prior service (cost) credit | $ | — |
| | $ | — |
| | $ | 11.9 |
| | $ | 14.9 |
| Net actuarial gain (loss) | (87.9 | ) | | (68.7 | ) | | (9.5 | ) | | (9.0 | ) | Net amounts recognized | $ | (87.9 | ) | | $ | (68.7 | ) | | $ | 2.4 |
| | $ | 5.9 |
|
|
Accumulated Benefit Obligations In Excess Of Plan Assets | The following is a summary of our accumulated and projected benefit obligations for our defined benefit plans: | | | | | | | | | (in millions) | May 29, 2016 |
| | May 31, 2015 |
| Accumulated benefit obligation for all defined benefit plans | $ | 298.5 |
| | $ | 288.4 |
| Pension plans with accumulated benefit obligations in excess of plan assets: | | | | Accumulated benefit obligation | 298.5 |
| | 288.4 |
| Fair value of plan assets | 242.0 |
| | 236.6 |
| Projected benefit obligations for all plans with projected benefit obligations in excess of plan assets | 298.5 |
| | 288.4 |
|
|
Weighted-Average Assumptions Used | The following table presents the weighted-average assumptions used to determine benefit obligations and net expense: | | | | | | | | | | | | | | Defined Benefit Plans | | Postretirement Benefit Plan | | 2016 | | 2015 | | 2016 | | 2015 | Weighted-average assumptions used to determine benefit obligations at May 29 and May 31 (1) | | | | | | | | Discount rate | 4.18 | % | | 4.43 | % | | 4.00 | % | | 4.22 | % | Rate of future compensation increases | N/A |
| | N/A |
| | N/A |
| | N/A |
| Weighted-average assumptions used to determine net expense for fiscal years ended May 29 and May 31 (2) | | | | | | | | Discount rate | 4.43 | % | | 4.41 | % | | 4.22 | % | | 4.26 | % | Expected long-term rate of return on plan assets | 6.50 | % | | 7.00 | % | | N/A |
| | N/A |
| Rate of future compensation increases | N/A |
| | 3.86 | % | | N/A |
| | N/A |
|
| | (1) | Determined as of the end of fiscal year. |
| | (2) | Determined as of the beginning of fiscal year. |
|
Components Of Net Periodic Benefit Cost | Components of net periodic benefit cost included in earnings are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | (in millions) | Defined Benefit Plans | | Postretirement Benefit Plan | | 2016 | | 2015 | | 2014 | | 2016 | | 2015 | | 2014 | Service cost | $ | — |
| | $ | 1.1 |
| | $ | 4.4 |
| | $ | 0.2 |
| | $ | 0.5 |
| | $ | 0.7 |
| Interest cost | 10.6 |
| | 10.0 |
| | 10.2 |
| | 0.8 |
| | 1.0 |
| | 1.4 |
| Expected return on plan assets | (14.5 | ) | | (15.2 | ) | | (17.1 | ) | | — |
| | — |
| | — |
| Amortization of unrecognized prior service cost | — |
| | — |
| | 0.1 |
| | (4.8 | ) | | (2.8 | ) | | (0.1 | ) | Recognized net actuarial loss | 2.8 |
| | 2.6 |
| | 9.0 |
| | 1.2 |
| | 0.8 |
| | — |
| Settlement loss recognized | — |
| | 6.1 |
| | — |
| | — |
| | — |
| | — |
| Curtailment gain recognized | — |
| | — |
| | (0.5 | ) | | — |
| | — |
| | — |
| Net pension and postretirement cost (benefit) | $ | (1.1 | ) | | $ | 4.6 |
| | $ | 6.1 |
| | $ | (2.6 | ) | | $ | (0.5 | ) | | $ | 2.0 |
|
|
Fair Values Of Defined Benefit Pension Plans Assets | The fair values of the defined benefit pension plans assets at their measurement dates of May 29, 2016 and May 31, 2015, are as follows: | | | | | | | | | | | | | | | | | | | | | | Items Measured at Fair Value at May 29, 2016 | (in millions) | | | Fair Value of Assets (Liabilities) | | Quoted Prices in Active Market for Identical Assets (Liabilities) (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | Equity: | | | | | | | | | | U.S. Commingled Funds | (1) | | $ | 75.3 |
| | $ | — |
| | $ | 75.3 |
| | $ | — |
| International Commingled Fund | (2) | | 24.9 |
| | — |
| | 24.9 |
| | — |
| Emerging Market Commingled Funds | (3) | | 6.8 |
| | — |
| | 6.8 |
| | — |
| Emerging Market Mutual Fund | (4) | | 5.9 |
| | 5.9 |
| | — |
| | — |
| Real Estate Commingled Fund | (5) | | 7.5 |
| | — |
| | 7.5 |
| | — |
| Fixed-Income: | | | | | | | | | | U.S. Treasury Securities | (6) | | 25.9 |
| | 25.9 |
| | — |
| | — |
| U.S. Corporate Securities | (6) | | 37.8 |
| | — |
| | 37.8 |
| | — |
| International Securities | (6) | | 6.3 |
| | — |
| | 6.3 |
| | — |
| Public Sector Utility Securities | (6) | | 14.8 |
| | — |
| | 14.8 |
| | — |
| Global Fixed-Income Commingled Fund | (7) | | 24.4 |
| | — |
| | 24.4 |
| | — |
| U.S. Fixed-Income Commingled Funds | (8) | | 10.3 |
| | — |
| | 10.3 |
| | — |
| Cash & Accruals | | | 2.1 |
| | 2.1 |
| | — |
| | — |
| Total | | | $ | 242.0 |
| | $ | 33.9 |
| | $ | 208.1 |
| | $ | — |
|
| | | | | | | | | | | | | | | | | | | | | | Items Measured at Fair Value at May 31, 2015 | (in millions) | | | Fair Value of Assets (Liabilities) | | Quoted Prices in Active Market for Identical Assets (Liabilities) (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | Equity: | | | | | | | | | | U.S. Commingled Funds | (1) | | $ | 75.8 |
| | $ | — |
| | $ | 75.8 |
| | $ | — |
| International Commingled Fund | (2) | | 25.7 |
| | — |
| | 25.7 |
| | — |
| Emerging Market Commingled Funds | (3) | | 13.1 |
| | — |
| | 13.1 |
| | — |
| Real Estate Commingled Fund | (5) | | 6.9 |
| | — |
| | 6.9 |
| | — |
| Fixed-Income: | | | | | | | | | | U.S. Treasury Securities | (6) | | 25.1 |
| | 25.1 |
| | — |
| | — |
| U.S. Corporate Securities | (6) | | 41.4 |
| | — |
| | 41.4 |
| | — |
| International Securities | (6) | | 8.3 |
| | — |
| | 8.3 |
| | — |
| Public Sector Utility Securities | (6) | | 14.5 |
| | — |
| | 14.5 |
| | — |
| Global Fixed-Income Commingled Fund | (7) | | 24.0 |
| | — |
| | 24.0 |
| | — |
| Cash & Accruals | | | 1.8 |
| | 1.8 |
| | — |
| | — |
| Total | | | $ | 236.6 |
| | $ | 26.9 |
| | $ | 209.7 |
| | $ | — |
|
| | (1) | U.S. commingled funds are comprised of investments in funds that purchase publicly traded U.S. common stock for total return purposes. Investments are valued using a unit price or net asset value (NAV) based on the fair value of the underlying investments of the funds. There are no redemption restrictions associated with these funds. |
| | (2) | International commingled fund is comprised of investments in funds that purchase publicly traded non-U.S. common stock for total return purposes. Investments are valued using a unit price or NAV based on the fair value of the underlying investments of the fund. There are no redemption restrictions associated with this fund. |
| | (3) | Emerging market commingled funds and developed market securities are comprised of investments in funds that purchase publicly traded common stock of non-U.S. companies in emerging economies for total return purposes. Funds are valued using a unit price or NAV based on the fair value of the underlying investments of the funds. There are no redemption restrictions associated with these funds. |
| | (4) | Emerging market mutual fund is comprised of securities associated with emerging markets and frontier markets. Fund is valued using quoted market prices from national exchanges. |
| | (5) | Real estate commingled fund is comprised of investments in funds that purchase publicly traded common stock of real estate companies for purposes of total return. These investments are valued using a unit price or NAV based on the fair value of the underlying investments of the fund. There are no redemption restrictions associated with this fund. |
| | (6) | Fixed-income securities are comprised of investments in government and corporate debt securities. These securities are valued by the trustee at closing prices from national exchanges or pricing vendors on the valuation date. |
| | (7) | Global fixed-income commingled fund is comprised of investments in U.S. and non-U.S. government fixed-income securities. Investments are valued using a unit price or NAV based on the fair value of the underlying investments of the fund. There are no redemption restrictions associated with this fund. |
|
Expected Benefit Payments | The following benefit payments are expected to be paid between fiscal 2017 and fiscal 2026: | | | | | | | | | | (in millions) | | Defined Benefit Plans | | Postretirement Benefit Plan | 2017 | | $ | 12.5 |
| | $ | 1.3 |
| 2018 | | 12.6 |
| | 1.3 |
| 2019 | | 13.0 |
| | 1.3 |
| 2020 | | 13.7 |
| | 1.3 |
| 2021 | | 14.2 |
| | 1.3 |
| 2022-2026 | | 79.3 |
| | 6.2 |
|
|