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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Apr. 30, 2015 | Apr. 30, 2014
Summary of changes in the company's goodwill |  |
Goodwill, Beginning Balance | $ 3,098.2 | $ 3,052.9
Acquisitions | 2,918.8 | 52.1
Other | (7.2) | (6.8)
Goodwill, Ending Balance | 6,009.8 | 3,098.2
U.S. Retail Coffee [Member] |  |
Summary of changes in the company's goodwill |  |
Goodwill, Beginning Balance | 1,743.1 | 1,720.3
Acquisitions | (0.3) | 22.8
Other | 0.1 | 0.0
Goodwill, Ending Balance | 1,742.9 | 1,743.1
U.S. Retail Consumer Foods [Member] |  |
Summary of changes in the company's goodwill |  |
Goodwill, Beginning Balance | 1,032.2 | 1,034.6
Acquisitions | 47.9 | 0.0
Other | (2.5) | (2.4)
Goodwill, Ending Balance | 1,077.6 | 1,032.2
U.S. Retail Pet Foods [Member] |  |
Summary of changes in the company's goodwill |  |
Goodwill, Beginning Balance | 0.0 | 0.0
Acquisitions | 2,810.3 | 0.0
Other | 0.0 | 0.0
Goodwill, Ending Balance | 2,810.3 | 0.0
International, Foodservice, and Natural Foods [Member] |  |
Summary of changes in the company's goodwill |  |
Goodwill, Beginning Balance | 322.9 | 298.0
Acquisitions | 60.9 | 29.3
Other | (4.8) | (4.4)
Goodwill, Ending Balance | $ 379.0 | $ 322.9

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