Quarterly report pursuant to Section 13 or 15(d)

MARKETABLE SECURITIES

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MARKETABLE SECURITIES
9 Months Ended
Sep. 30, 2018
Investments, Debt and Equity Securities [Abstract]  
MARKETABLE SECURITIES NOTE 7. MARKETABLE SECURITIES
A summary of marketable securities, all of which are classified as current, was as follows:
 
 
 
September 30, 2018
 
December 31, 2017
In millions
 
Cost
 
Gross unrealized gains/(losses)(1)
 
Estimated
fair value
 
Cost
 
Gross unrealized gains/(losses)(1)
 
Estimated
fair value
Equity securities
 
 

 
 

 
 

 
 

 
 

 
 

Debt mutual funds
 
$
84

 
$

 
$
84

 
$
170

 
$

 
$
170

Certificates of deposit
 
83

 

 
83

 
12

 

 
12

Equity mutual funds
 
14

 
3

 
17

 
12

 
3

 
15

Debt securities
 
1

 

 
1

 
1

 

 
1

Total marketable securities
 
$
182

 
$
3

 
$
185

 
$
195

 
$
3

 
$
198

____________________________________
(1) Unrealized gains and losses for debt securities are recorded in other comprehensive income (See NOTE 13, "ACCUMULATED OTHER COMPREHENSIVE LOSS," to our Condensed Consolidated Financial Statements for more information). Effective January 1, 2018, with the adoption of the FASB standard, all unrealized gains and losses for equity securities are recorded in other income, net in the Condensed Consolidated Statements of Income. See NOTE 16, "RECENTLY ADOPTED AND RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS," for detailed information about the adoption of this standard.

All marketable securities are classified as available-for-sale securities and use a Level 2 fair value measure. 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 2018 and for the year ended December 31, 2017.

A description of the valuation techniques and inputs used for our Level 2 fair value measures is as follows:
Debt mutual funds— The fair value measure for the vast majority of these investments is the daily net asset value published on a regulated governmental website. Daily quoted prices are available from the issuing brokerage and are used on a test basis to corroborate this Level 2 input.
Certificates of deposit — These investments provide us with a contractual rate of return and generally range in maturity from three months to five years. The counterparties to these investments are reputable financial institutions with investment grade credit ratings. Since these instruments are not tradable and must be settled directly by us with the respective financial institution, our fair value measure is the financial institution's month-end statement.
Equity mutual funds — The fair value measure for these investments is the net asset value published by the issuing brokerage. Daily quoted prices are available from reputable third party pricing services and are used on a test basis to corroborate this Level 2 input measure.
Debt securities — The fair value measure for these securities is broker quotes received from reputable firms. These securities are infrequently traded on a national stock exchange and these values are used on a test basis to corroborate our Level 2 input measure.
The proceeds from sales and maturities of marketable securities were as follows:
 
 
Nine months ended
In millions
 
September 30,
2018
 
October 1,
2017
Proceeds from sales of marketable securities
 
$
234

 
$
97

Proceeds from maturities of marketable securities
 
64

 
121

Investments in marketable securities - liquidations
 
$
298

 
$
218