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

12 Months Ended

Jul. 31, 2016

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, 2016				July 31, 2015
(In millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Classification on balance sheets:
Cash and cash equivalents	$	638	$	638	$	808	$	808
Investments	441		442		890		889
Funds held for customers	304		304		337		337
Long-term investments	28		28		27		27
Total cash and cash equivalents, investments and funds held for customers	$	1,411	$	1,412	$	2,062	$	2,061

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, 2016				July 31, 2015
(In millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Type of issue:
Total cash and cash equivalents	$	742	$	742	$	970	$	970
Available-for-sale debt securities:
Municipal bonds	186		186		507		506
Municipal auction rate securities	15		15		15		15
Corporate notes	419		420		546		546
U.S. agency securities	36		36		12		12
Total available-for-sale debt securities	656		657		1,080		1,079
Other long-term investments	13		13		12		12
Total cash and cash equivalents, investments and funds held for customers	$	1,411	$	1,412	$	2,062	$	2,061

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, 2016				July 31, 2015
(In millions)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due within one year	$	285	$	285	$	434	$	435
Due within two years	209		210		443		442
Due within three years	143		143		156		156
Due after three years	19		19		47		46
Total available-for-sale debt securities	$	656	$	657	$	1,080	$	1,079