Acquisitions (Details) $ / shares in Units, shares in Millions	3 Months Ended
	Jul. 30, 2016 USD ($) $ / shares shares
Business Acquisition [Line Items]
Business Acquisition, Share Price | $ / shares	$ 46.00
BusinessCombinationEquityInterestsIssuedandIssuableConversionRatioperShare	$ 0.2321
Business Combination, Consideration Transferred	$ 14,800,000,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	58.0
Expected Long Term Financing related to acquisition	$ 11,600,000,000
BusinessCombinationTerminationRightsFeeIfClosingConditionsAreNotSatisfied	700,000,000
Business Combination Termination Fee if Acquiree Terminates the Merger	490,000,000
Business Combination, Acquisition Related Costs	$ 8,300,000