Cash and Cash Equivalents, Investments and Funds Held for Customers (Tables)

12 Months Ended

Jul. 31, 2012

Cash and Cash Equivalents, Investments and Funds Held for Customers [Abstract]

Cash and cash equivalents, investments and funds held for customers by balance sheet classification

The following table summarizes our cash and cash equivalents, investments and funds held for customers by balance sheet classification at the dates indicated.

	July 31, 2012				July 31, 2011
(In millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Classification on balance sheets:
Cash and cash equivalents	$	393	$	393	$	722	$	722
Investments	350		351		698		699
Funds held for customers	289		290		413		414
Long-term investments	47		75		63		63
Total cash and cash equivalents, investments and funds held for customers	$	1,079	$	1,109	$	1,896	$	1,898

Cash and cash equivalents, investments and funds held for customers by investment category

The following table summarizes our cash and cash equivalents, investments and funds held for customers by investment category at the dates indicated. See Note 2 for more information on our municipal auction rate securities.

	July 31, 2012				July 31, 2011
(In millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Type of issue:
Total cash and cash equivalents	$	508	$	508	$	961	$	961
Available-for-sale debt securities:
Municipal bonds	259		260		434		434
Municipal auction rate securities	41		41		59		59
Corporate notes	141		142		287		288
U.S. agency securities	124		124		151		152
Total available-for-sale debt securities	565		567		931		933
Corporate equity securities	5		33		—		—
Other long-term investments	1		1		4		4
Total cash and cash equivalents, investments and funds held for customers	$	1,079	$	1,109	$	1,896	$	1,898

Available-for-sale debt securities classified by the stated maturity date of the security

The following table summarizes our available-for-sale debt securities classified by the stated maturity date of the security at the dates indicated.

	July 31, 2012				July 31, 2011
(In millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due within one year	$	218	$	218	$	267	$	267
Due within two years	134		135		323		324
Due within three years	131		132		190		191
Due after three years	82		82		151		151
Total available-for-sale debt securities	$	565	$	567	$	931	$	933