v3.2.0.727

Income Taxes (Details 4) - USD ($) $ in Millions	May. 31, 2015	May. 31, 2014
Components Of Deferred Tax Assets [Abstract]
Property, equipment, leases and intangibles	$ 80	$ 117
Employee benefits	2,297	1,839
Self-insurance accruals	366	343
Other	315	275
Net operating loss/credit carryforwards	263	275
Valuation allowances	(187)	(194)
Deferred Tax Assets, Net	3,134	2,655
Components Of Deferred Tax Liabilities [Abstract]
Property, equipment, leases and intangibles	2,892	2,884
Employee benefits	10	10
Other	1,423	1,215
Deferred Tax Liabilities	$ 4,325	$ 4,109

The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of capital assets, leases, and intangibles and the basis computed in accordance with generally accepted accounting principles.

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The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of employee benefit liabilities and the basis computed in accordance with generally accepted accounting principles. The difference in basis of such costs will increase future taxable income when such basis difference reverses.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed.

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The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from employee benefit costs not otherwise specified in the taxonomy, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from estimated losses under self insurance.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances.

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Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed.

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