Business Combinations (Details 3) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
May 31, 2016	May 31, 2015
Business Acquisition Pro Forma Information Abstract
Consolidated revenues	$ 57,899	$ 55,862
Consolidated net income	$ 1,566	$ 595
Diluted earnings per share	$ 5.60	$ 2.07
TNT acquisition related costs	$ 115
TNT restructuring, impairments, litigation matters and pension adjustments	$ 40	$ 320

Amount of TNT acquisition related costs for 2016 included in the unaudited pro forma results.

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- Definition

Amount of TNT restructuring, impairments, litigation matters and pension adjustments included in the unaudited pro forma results

+ References

No definition available.

+ Details

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- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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- References

No definition available.

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

+ Details

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

+ Details

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