Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Amount of each individual error being corrected in the correcting adjustment.

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Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended			3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014
Impairment of indefinite-lived intangible assets	$ 0	$ 0	$ 0
Net carrying amounts of intangible assets, other than goodwill	169	227
Light Vehicle Segment [Member]
Net carrying amounts of intangible assets, other than goodwill	12
Commercial Vehicle Segment [Member]
Net carrying amounts of intangible assets, other than goodwill	94
Off-Highway Segment [Member]
Net carrying amounts of intangible assets, other than goodwill	50
Power Technologies Segment [Member]
Net carrying amounts of intangible assets, other than goodwill	13
Trademarks and Trade Names [Member] \| Non Amortizable Intangible Assets [Member]
Impairment of indefinite-lived intangible assets	0
Used In Research and Development [Member] \| Non Amortizable Intangible Assets [Member]
Impairment of indefinite-lived intangible assets	0
Goodwill Error [Member]
Quantifying Misstatement in Current Year Financial Statements, Amount				$ (3)