Other Financial Instruments and Fair Value Measurements (Details 1) - Fair value measurements recurring [Member] - USD ($) $ in Millions | Jan. 31, 2018 | Apr. 30, 2017 |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Long-term debt | [1] | $ (4,763) | $ (5,023.8) |
Total financial instruments measured at fair value | | (4,716.7) | (4,989.4) |
Equity Funds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 10.4 | 1.1 |
Municipal Bonds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 37.1 | 34.7 |
Money market funds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 0.2 | 11.5 |
Commodity contracts - net [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Derivative financial instruments | [3] | 3 | (16) |
Foreign currency exchange contracts - net [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Derivative financial instruments | [3] | (4.4) | 3.1 |
Fair Value, Inputs, Level 1 [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Long-term debt | [1] | (4,763) | (4,473.2) |
Total financial instruments measured at fair value | | (4,749.5) | (4,476.1) |
Fair Value, Inputs, Level 1 [Member] | Equity Funds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 10.4 | 1.1 |
Fair Value, Inputs, Level 1 [Member] | Municipal Bonds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Money market funds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 0.2 | 11.5 |
Fair Value, Inputs, Level 1 [Member] | Commodity contracts - net [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Derivative financial instruments | [3] | 3.2 | (15.8) |
Fair Value, Inputs, Level 1 [Member] | Foreign currency exchange contracts - net [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Derivative financial instruments | [3] | (0.3) | 0.3 |
Fair Value, Inputs, Level 2 [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Long-term debt | [1] | 0 | (550.6) |
Total financial instruments measured at fair value | | 32.8 | (513.3) |
Fair Value, Inputs, Level 2 [Member] | Equity Funds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 0 | 0 |
Fair Value, Inputs, Level 2 [Member] | Municipal Bonds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 37.1 | 34.7 |
Fair Value, Inputs, Level 2 [Member] | Money market funds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 0 | 0 |
Fair Value, Inputs, Level 2 [Member] | Commodity contracts - net [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Derivative financial instruments | [3] | (0.2) | (0.2) |
Fair Value, Inputs, Level 2 [Member] | Foreign currency exchange contracts - net [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Derivative financial instruments | [3] | (4.1) | 2.8 |
Fair Value, Inputs, Level 3 [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Long-term debt | [1] | 0 | 0 |
Total financial instruments measured at fair value | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Equity Funds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Municipal Bonds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Money market funds [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Other investments | [2] | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Commodity contracts - net [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Derivative financial instruments | [3] | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Foreign currency exchange contracts - net [Member] | | | |
Financial assets (liabilities) measured at fair value on a recurring basis | | | |
Derivative financial instruments | [3] | $ 0 | $ 0 |
| |
[1] | Long-term debt is comprised of public Senior Notes classified as Level 1 and the Term Loan classified as Level 2. The public Senior Notes are traded in an active secondary market and valued using quoted prices. The value of the Term Loan is based on the net present value of each interest and principal payment calculated utilizing an interest rate derived from an estimated yield curve obtained from independent pricing sources for similar types of term loan borrowing arrangements. In December 2017, the Term Loan was prepaid in full and the agreement was terminated. For additional information, see Note 8: Debt and Financing Arrangements. | |
[2] | Marketable securities and other investments consist of funds maintained for the payment of benefits associated with nonqualified retirement plans. The funds include equity securities listed in active markets, municipal obligations valued by a third party using valuation techniques that utilize inputs that are derived principally from or corroborated by observable market data, and money market funds with maturities of three months or less. Based on the short-term nature of these money market funds, carrying value approximates fair value. As of January 31, 2018, our municipal obligations are scheduled to mature as follows: $0.4 in 2018, $2.3 in 2019, $1.7 in 2020, $4.9 in 2021, and the remaining $27.8 in 2022 and beyond. | |
[3] | Level 1 commodity and foreign currency exchange derivatives are valued using quoted market prices for identical instruments in active markets. Level 2 commodity and foreign currency exchange derivatives are valued using quoted prices for similar assets or liabilities in active markets. For additional information, see Note 10: Derivative Financial Instruments. | |