Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2015	Feb. 28, 2014
Condensed Consolidated Statement of Other Comprehensive Income
NET INCOME	$ 580us-gaap_NetIncomeLoss	$ 378us-gaap_NetIncomeLoss	$ 1,802us-gaap_NetIncomeLoss	$ 1,367us-gaap_NetIncomeLoss
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax of $18, $3, $41 and $7	(152)	(30)	(305)	(64)
Amortization of unrealized pension actuarial gains/losses and other, net of tax of $18, $25, $53, $75	30	45	90	130
Other comprehensive income (loss)	(122)	15	(215)	66
COMPREHENSIVE INCOME	$ 458us-gaap_ComprehensiveIncomeNetOfTax	$ 393us-gaap_ComprehensiveIncomeNetOfTax	$ 1,587us-gaap_ComprehensiveIncomeNetOfTax	$ 1,433us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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