Derivative Financial Instruments and Hedging Activities (Policies)

12 Months Ended

Apr. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Classification of Cash Flows Related to Cash Flow Hedges [Policy Text Block]

In our statement of cash flows, we classify cash flows related to cash flow hedges in the same category as the cash flows from the hedged items.

Derivatives, Offsetting Fair Value Amounts, Policy [Policy Text Block]

Offsetting. As noted above, our derivative contracts are governed by ISDA agreements that allow for net settlement of derivative contracts with the same counterparty. It is our policy to present the fair values of current derivatives (that is, those with a remaining term of 12 months or less) with the same counterparty on a net basis in the balance sheet. Similarly, we present the fair values of noncurrent derivatives with the same counterparty on a net basis. Current derivatives are not netted with noncurrent derivatives in the balance sheet.