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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Intangible Assets, Net Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended	0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Feb. 06, 2015
Goodwill and Intangible Assets [Line Items]
Amortization expense associated with definite-lived intangible assets	$ 22us-gaap_AmortizationOfIntangibleAssets	$ 20us-gaap_AmortizationOfIntangibleAssets
Energy Segment [Member] \| Fertilizer reporting unit [Member]
Goodwill and Intangible Assets [Line Items]
Goodwill, Impairment Loss	0		103
TRW [Member] \| Automotive Segment [Member]
Goodwill and Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				52
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets				17
Business combination, goodwill allocation				$ 51