v2.4.0.6
MARKETABLE SECURITIES (Tables)
 12 Months Ended
Oct. 31, 2012
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

 

2012

 

 

 

 

 

 

 

 

 

U.S. government debt securities

 

$

1,193

 

$

7

 

 

 

$

1,200

 

Municipal debt securities

 

35

 

3

 

 

 

38

 

Corporate debt securities

 

100

 

10

 

 

 

110

 

Mortgage-backed securities*

 

117

 

6

 

$

1

 

122

 

Marketable securities

 

$

1,445

 

$

26

 

$

1

 

$

1,470

 

 

 

 

 

 

 

 

 

 

 

2011

 

 

 

 

 

 

 

 

 

U.S. government debt securities

 

$

571

 

$

6

 

$

1

 

$

576

 

Municipal debt securities

 

34

 

2

 

 

 

36

 

Corporate debt securities

 

83

 

6

 

 

 

89

 

Mortgage-backed securities*

 

82

 

4

 

 

 

86

 

Marketable securities

 

$

770

 

$

18

 

$

1

 

$

787

 

 

 

* Primarily issued by U.S. government sponsored enterprises.
Schedule of Contractual Maturities of Debt Securities

The contractual maturities of debt securities at October 31, 2012 in millions of dollars follow:

 

 

 

Amortized

 

Fair

 

 

 

Cost

 

Value

 

Due in one year or less

 

$

813

 

$

813

 

Due after one through five years

 

366

 

370

 

Due after five through 10 years

 

85

 

93

 

Due after 10 years

 

64

 

72

 

Mortgage-backed securities

 

117

 

122

 

Debt securities

 

$

1,445

 

$

1,470