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Derivative Financial Instruments (Tables)
 12 Months Ended
Apr. 30, 2014
Derivative Financial Instruments [Abstract]  
Fair value of derivative instruments

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

April 30, 2014

 

  

April 30, 2013

 

 

  

Other
Current
Assets

 

  

Other
Current
Liabilities

 

  

Other
Noncurrent
Liabilities

 

  

Other
Current
Assets

 

  

Other
Current
Liabilities

 

Derivatives designated as hedging instruments:

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

Commodity contracts

  

$

23.4

  

  

$

10.9

  

  

$

—  

  

  

$

2.1

  

  

$

2.0

  

Interest rate contract

  

 

18.0

  

  

 

—  

  

  

 

3.1

  

  

 

—  

  

  

 

—  

  

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

Total derivatives designated as hedging instruments

  

$

41.4

  

  

$

10.9

  

  

$

3.1

  

  

$

2.1

  

  

$

2.0

  

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

Derivatives not designated as hedging instruments:

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

Commodity contracts

  

$

11.6

  

  

$

5.8

  

  

$

—  

  

  

$

3.6

  

  

$

2.3

  

Foreign currency exchange contracts

  

 

1.4

  

  

 

0.7

  

  

 

—  

  

  

 

0.7

  

  

 

0.2

  

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

Total derivatives not designated as hedging instruments

  

$

13.0

  

  

$

6.5

  

  

$

—  

  

  

$

4.3

  

  

$

2.5

  

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

Total derivative instruments

  

$

54.4

  

  

$

17.4

  

  

$

3.1

  

  

$

6.4

  

  

$

4.5

  

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

  

 

 

 

 
Commodity contracts gains and losses recognized on derivatives designated as cash flow hedges

 

 

 

 

 

 

 

 

 

 

 

 

  

Year Ended April 30,

 

 

  

2014

 

 

2013

 

Gains (losses) recognized in other comprehensive income (loss) (effective portion)

  

$

21.0

  

 

$

(27.5)

 

Losses reclassified from accumulated other comprehensive loss to cost of products sold (effective portion)

  

 

(20.3)

 

 

 

(39.6)

 

 

  

 

 

 

 

 

 

 

Change in accumulated other comprehensive loss

  

$

41.3

  

 

$

12.1

  

 

  

 

 

 

 

 

 

 

Gains (losses) recognized in cost of products sold (ineffective portion)

  

$

1.4

  

 

$

(0.9)

 

 

  

 

 

 

 

 

 

 

 
Net realized and unrealized gains and losses recognized in cost of products of sold on derivatives not designated as qualified hedging instruments

 

 

 

 

 

 

 

 

 

 

 

 

  

Year Ended April 30,

 

 

  

2014

 

 

2013

 

Unrealized gains on commodity contracts

  

$

6.2

  

 

$

6.1

  

Unrealized (losses) gains on foreign currency exchange contracts

  

 

(0.9)

 

 

 

0.5

  

 

  

 

 

 

 

 

 

 

Total unrealized gains recognized in cost of products sold

  

$

5.3

  

 

$

6.6

  

 

  

 

 

 

 

 

 

 

Realized losses on commodity contracts

  

$

(1.0)

 

 

$

(1.5)

 

Realized gains on foreign currency exchange contracts

  

 

4.2

  

 

 

0.8

  

 

  

 

 

 

 

 

 

 

Total realized gains (losses) recognized in cost of products sold

  

$

3.2

  

 

$

(0.7)

 

 

  

 

 

 

 

 

 

 

Total gains recognized in cost of products sold

  

$

8.5

  

 

$

5.9

  

 

  

 

 

 

 

 

 

 

 
Outstanding derivative contracts

 

 

 

 

 

 

 

 

 

 

 

 

  

Year Ended April 30,

 

 

  

2014

 

  

2013

 

Commodity contracts

  

$

790.3

  

  

$

347.6

  

Foreign currency exchange contracts

  

 

158.1

  

  

 

56.8

  

Interest rate contract

  

 

750.0

  

  

 

—