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

12 Months Ended

Jul. 31, 2013

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, 2013				July 31, 2012
(In millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Classification on balance sheets:
Cash and cash equivalents	$	1,009	$	1,009	$	393	$	393
Investments	653		652		350		351
Funds held for customers	235		235		289		290
Long-term investments	54		83		47		75
Total cash and cash equivalents, investments and funds held for customers	$	1,951	$	1,979	$	1,079	$	1,109

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, 2013				July 31, 2012
(In millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Type of issue:
Total cash and cash equivalents	$	1,069	$	1,069	$	508	$	508
Available-for-sale debt securities:
Municipal bonds	489		489		259		260
Municipal auction rate securities	33		33		41		41
Corporate notes	269		269		141		142
U.S. agency securities	69		69		124		124
Total available-for-sale debt securities	860		860		565		567
Available-for-sale corporate equity securities	5		33		5		33
Other long-term investments	17		17		1		1
Total cash and cash equivalents, investments and funds held for customers	$	1,951	$	1,979	$	1,079	$	1,109

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, 2013				July 31, 2012
(In millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due within one year	$	234	$	235	$	218	$	218
Due within two years	245		245		134		135
Due within three years	211		210		131		132
Due after three years	170		170		82		82
Total available-for-sale debt securities	$	860	$	860	$	565	$	567