Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2013

Text Block [Abstract]

Carrying and Estimated Fair Value

The carrying and estimated fair values of our financial instruments by class at December 31, 2013 and 2012 were as follows:

	December 31, 2013				December 31, 2012
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Millions)
Long-term debt (including current maturities)	$	1,021	$	1,089	$	1,070	$	1,136
Instruments with off-balance sheet risk:
Foreign exchange forward contracts:
Asset derivative contracts	—		—		1		1

Foreign Exchange Forward Contracts Fair Value on Gross Basis

The fair value of our foreign exchange forward contracts, presented on a gross basis by derivative contract at December 31, 2013 and 2012, respectively, was as follows:

	Fair Value of Derivative Instruments
	December 31, 2013						December 31, 2012
	Asset Derivatives		Liability Derivatives		Total		Asset Derivatives		Liability Derivatives		Total
	(Millions)
Foreign exchange forward contracts	$	—	$	—	$	—	$	1	$	—	$	1

Fair Value of Financial Assets on Recurring Basis

The fair value of our recurring financial assets and liabilities at December 31, 2013 and 2012, respectively, are as follows:

	December 31, 2013						December 31, 2012
	Level 1		Level 2		Level 3		Level 1	Level 2		Level 3
	(Millions)
Financial Assets:
Foreign exchange contracts	$	—	$	—	$	—	n/a	$	1	n/a

Fair Value Hierarchy

The fair value hierarchy definition prioritizes the inputs used in measuring fair value into the following levels:

Level 1	—	Quoted prices in active markets for identical assets or liabilities.
Level 2	—	Inputs, other than quoted prices in active markets, that are observable either directly or indirectly.
Level 3	—	Unobservable inputs based on our own assumptions.

Summarization for Foreign Currency Forward Purchase and Sale Contracts

The following table summarizes by major currency the notional amounts for foreign currency forward purchase and sale contracts as of December 31, 2013 (all of which mature in 2014):

		Notional Amount in Foreign Currency
		(Millions)
Australian dollars	—Purchase	3
British pounds	—Purchase	4
European euro	—Sell	(16	)
Japanese yen	—Purchase	135
	—Sell	(842	)
Polish zloty	—Purchase	33
South African rand	—Purchase	144
U.S. dollars	—Purchase	15
	—Sell	(15	)
Other	—Sell	(2	)