Annual report pursuant to Section 13 and 15(d)

MARKETABLE SECURITIES (Tables)

v3.6.0.2
MARKETABLE SECURITIES (Tables)
12 Months Ended
Dec. 31, 2016
Marketable Securities [Abstract]  
Summary of marketable securities
A summary of marketable securities, all of which are classified as current, was as follows:
 
 
December 31,
 
 
2016
 
2015
In millions
 
Cost
 
Gross unrealized
gains/(losses)
 
Estimated
fair value
 
Cost
 
Gross unrealized
gains/(losses)
 
Estimated
fair value
Available-for-sale (1)
 
 

 
 

 
 

 
 

 
 

 
 

Debt mutual funds
 
$
132

 
$

 
$
132

 
$
88

 
$

 
$
88

Bank debentures
 
114

 

 
114

 

 

 

Equity mutual funds
 
12

 

 
12

 
11

 
(1
)
 
10

Government debt securities
 
2

 

 
2

 
2

 

 
2

Total marketable securities
 
$
260

 
$

 
$
260

 
$
101

 
$
(1
)
 
$
100


______________________________________________________
(1) All marketable securities are classified as Level 2 securities. The fair value of Level 2 securities is estimated using actively quoted prices for similar instruments from brokers and observable inputs where available, including market transactions and third-party pricing services, or net asset values provided to investors. We do not currently have any Level 3 securities and there were no transfers between Level 2 or 3 during 2016 and 2015.
Schedule of proceeds from sales and maturities and gross realized gains and losses
The proceeds from sales and maturities of marketable securities and gross realized gains from the sale of AFS securities were as follows:
 
 
Years ended December 31,
In millions
 
2016
 
2015
 
2014
Proceeds from sales and maturities of marketable securities
 
$
306

 
$
270

 
$
336

Gross realized gains from the sale of available-for-sale securities(1)
 

 
1

 
14

____________________________________________________
(1) Gross realized losses from the sale of available-for-sale securities were immaterial.
Summary of fair value of AFS investments in debt securities by contractual maturity
At December 31, 2016, the fair value of AFS investments in debt securities that utilize a Level 2 fair value measure is shown by contractual maturity below:
Maturity date
 
(in millions)
1 year or less
 
$
247

5 - 10 years
 
1

Total
 
$
248