FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2015

Financial Instruments [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments:
	At December 31, 2015											At December 31, 2014
In millions	Cost			Gain		Loss			Fair Value			Cost			Gain		Loss			Fair Value
Debt securities (1)	$	4		$	—	$	—		$	4		$	5		$	—	$	—		$	5
Long-term debt (2)	$	(477	)	$	—	$	(96	)	$	(573	)	$	(478	)	$	—	$	(123	)	$	(601	)

(1) Marketable securities are included in “Other investments” in the consolidated balance sheets.

(2) Presented in accordance with newly implemented ASU 2015-03. See Note 2 for further information.