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FAIR VALUE MEASUREMENTS (Details 3) (USD $) In Millions, unless otherwise specified	Apr. 30, 2014
Contractual Maturities of Debt Securities, Amortized Cost
Amortized cost, due in one year or less	$ 1,123
Amortized cost, due after one through five years	83
Amortized cost, due after five through 10 years	134
Amortized cost, due after 10 years	55
Amortized cost, mortgage-backed securities	131
Amortized cost, debt securities	1,526
Contractual Maturities of Debt Securities, Fair Value
Fair value, due in one year or less	1,123
Fair value, due after one through five years	87
Fair value, due after five through 10 years	136
Fair value, due after 10 years	57
Fair value, mortgage-backed securities	129
Fair value, debt securities	$ 1,532

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- Definition

Amount of available-for-sale debt securities at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

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Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the next rolling twelve months following the latest balance sheet presented. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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Amount of available-for-sale debt securities at cost, net of adjustments, maturing after the tenth rolling twelve months following the latest balance sheet presented. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the sixth rolling twelve months through the tenth rolling twelve months following the latest balance sheet presented. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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