Summary of Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Redeemable Noncontrolling Interests

The following is a rollforward of activity in our redeemable noncontrolling interests for the years ending December 31, 2013, 2012 and 2011, respectively:

	2013			2012			2011
	(Millions)
Balance January 1	$	15		$	12		$	12
Net income attributable to redeemable noncontrolling interests	14			9			7
Sale of 25 percent equity interest to Tenneco Inc	—			—			(2		)
Capital Contributions	—			2			1
Dividends declared	(9		)	(8		)	(6		)
Balance December 31	$	20		$	15		$	12

Inventories by Major Classification

At December 31, 2013 and 2012, inventory by major classification was as follows:

	2013		2012
	(Millions)
Finished goods	$	267	$	273
Work in process	202		207
Raw materials	130		133
Materials and supplies	57		54
	$	656	$	667

Changes in Net Carrying Amount of Goodwill

The changes in the net carrying amount of goodwill for the years ended December 31, 2013 and 2012 were as follows:

	Clean Air Division							Ride Performance Division
	North America			Europe, South America & India		Asia Pacific		North America		Europe, South America & India			Asia Pacific		Total
(Millions)
Balance at December 31, 2011	$	15		$	13	$	—	$	10	$	36		$	—	$	74
Translation Adjustment	(1		)	—		—		—		(1		)	—		(2		)
Balance at December 31, 2012	14			14		—		10		34			—		72
Translation Adjustment	—			—		—		—		(3		)	—		(3		)
Balance at December 31, 2013	14			14		—		10		31			—		69

Carrying Amount and Accumulated Amortization of Finite Useful Life Intangible Assets

The carrying amount and accumulated amortization of our finite useful life intangible assets were as follows:

	December 31, 2013					December 31, 2012
	Gross Carrying Value		Accumulated Amortization			Gross Carrying Value		Accumulated Amortization
	(Millions)					(Millions)
Customer contract	$	8	$	(4	)	$	8	$	(3	)
Patents	3		(2		)	3		(1		)
Technology rights	26		(12		)	26		(7		)
Other	11		(1		)	11		(1		)
Total	$	48	$	(19	)	$	48	$	(12	)

Property, Plant and Equipment

At December 31, 2013 and 2012, plant, property, and equipment, at cost, by major category were as follows:

	2013		2012
	(Millions)
Land, buildings, and improvements	$	579	$	563
Machinery and equipment	2,673		2,574
Other, including construction in progress	246		228
	$	3,498	$	3,365