Goodwill and Other Intangible Assets (Details 1) - USD ($) $ in Millions	12 Months Ended
Apr. 30, 2015	Apr. 30, 2014
Finite-lived intangible assets subject to amortization:
Finite-lived intangible assets subject to amortization Acquisition Cost	$ 4,230.9	$ 1,670.7
Finite-lived intangible assets subject to amortization Accumulated Amortization / Impairment Charges / Foreign Currency Exchange	600.3	491.0
Finite-lived intangible assets subject to amortization, Net	3,630.6	1,179.7
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Intangible Assets Acquisition Cost	7,568.9	3,529.6
Total other intangible assets Accumulated Amortization / Impairment charges / Foreign currency exchange	618.6	505.3
Intangible Assets, Net (Excluding Goodwill)	6,950.3	3,024.3
Trademarks [Member]
Indefinite-lived intangible assets not subject to amortization:
Indefinite-lived intangible assets not subject to amortization Acquisition Cost	3,338.0	1,858.9
Indefinite-lived intangible assets not subject to amortization Accumulated Amortization / Impairment Charges / Foreign Currency Exchange	18.3	14.3
Indefinite-lived intangible assets not subject to amortization, Net	3,319.7	1,844.6
Customer and contractual relationships [Member]
Finite-lived intangible assets subject to amortization:
Finite-lived customer relationships gross	3,733.9	1,436.2
Finite-lived intangible assets subject to amortization Accumulated Amortization / Impairment Charges / Foreign Currency Exchange	477.9	392.6
Finite-lived intangible assets subject to amortization, Net	3,256.0	1,043.6
Patents and technology [Member]
Finite-lived intangible assets subject to amortization:
Finite-lived patents gross	169.0	164.5
Finite-lived intangible assets subject to amortization Accumulated Amortization / Impairment Charges / Foreign Currency Exchange	74.8	61.9
Finite-lived intangible assets subject to amortization, Net	94.2	102.6
Trademarks [Member]
Finite-lived intangible assets subject to amortization:
Finite-lived trademarks gross	328.0	70.0
Finite-lived intangible assets subject to amortization Accumulated Amortization / Impairment Charges / Foreign Currency Exchange	47.6	36.5
Finite-lived intangible assets subject to amortization, Net	$ 280.4	$ 33.5

Total other intangible assets accumulated amortization, impairment charges, and foreign currency exchange

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date to an asset acquired in a business combination representing a favorable existing relationship with customers having a finite beneficial life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights.

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Gross carrying amount before accumulated amortization as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a specified period of time.

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- Definition

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit.

+ References

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

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-Publisher FASB

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