MARKETABLE SECURITIES (Tables)

12 Months Ended

Oct. 31, 2011

MARKETABLE SECURITIES.

Amortized Cost and Fair Value of Marketable Securities

The amortized cost and fair value of marketable securities at October 31 in millions of dollars follow:

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
2011
U.S. government debt securities	$	571	$	6	$	1	$	576
Municipal debt securities	34		2				36
Corporate debt securities	83		6				89
Residential mortgage-backed securities*	82		4				86
Marketable securities	$	770	$	18	$	1	$	787
2010
U.S. government debt securities	$	57	$	6			$	63
Municipal debt securities	26		2				28
Corporate debt securities	58		5				63
Residential mortgage-backed securities*	69		4		$	1	72
Other debt securities	2						2
Marketable securities	$	212	$	17	$	1	$	228

* Primarily issued by U.S. government sponsored enterprises.

Schedule of Contractual Maturities of Marketable Securities

The contractual maturities of debt securities at October 31, 2011 in millions of dollars follow:

	Amortized		Fair
	Cost		Value
Due in one year or less	$	209	$	209
Due after one through five years	355		358
Due after five through 10 years	74		80
Due after 10 years	50		54
Residential mortgage-backed securities	82		86
Debt securities	$	770	$	787