Acquisitions (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	3 Months Ended	9 Months Ended
Sep. 30, 2011 Y Acquistion CounterParties Segment	Sep. 30, 2010	Mar. 31, 2011 Winterthur Technologie AG	Sep. 30, 2011 Winterthur Technologie AG	Sep. 30, 2011 Other Acquisitions
Business Acquisitions Information
Accounts receivable	$ 83			$ 43	$ 40
Inventory	103			76	27
Other current assets	9			6	3
Property, plant, and equipment	154			73	81
Purchased finite-lived intangible assets	284			226	58
Purchased goodwill	228			152	76
Accounts payable and other liabilities, net of other assets	(106)			(76)	(30)
Interest bearing debt	(86)			(79)	(7)
Deferred tax asset/(liability)	(72)			(60)	(12)
Net assets acquired	597			361	236
Noncontrolling interest	(56)			(56)
Net assets acquired excluding noncontrolling interest	541			305	236
Supplemental information:
Cash paid	567			327	240
Less: Cash acquired	36			32	4
Cash paid, net of cash acquired	531	48		295	236
Non-cash	10			10
Net assets acquired excluding noncontrolling interest	$ 541			$ 305	$ 236
Number of business combinations completed	8
Percentage of subsidiary share's owned by entity on the business acquisition date (as a percent)			86.00%
Percentage of subsidiary share's owned by entity as of latest balance sheet date (as a percent)				98.00%
Acquired finite-lived intangible assets, weighted-average life (in years)	14
Acquired finite-lived intangible assets life, low end of range (in years)	3
Acquired finite-lived intangible assets life, high end of range (in years)	20

The amount of acquisition cost of a business combination allocated to accounts payable and other liabilities, net of other assets of the acquired entity.

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Percentage of subsidiary's or equity investee's stock owned by parent company as of the latest balance sheet date.

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The calculated weighted-average amortization period of a major class of finite-lived intangible assets acquired during the current period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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Fair value of noncash consideration given by the acquirer to acquire the entity. Does not include cash paid, the fair value of debt and securities issued and liabilities incurred to acquire the entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

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The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.

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The amount of acquisition cost of a business combination allocated to inventory, including finished goods, work-in-process, and raw materials.

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The amount of acquisition cost of a business combination allocated to prepaid expenses and other current assets. Does not include amounts allocated to cash and cash equivalents, marketable securities, receivables, inventory, and assets not to be used.

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The amount of acquisition cost of a business combination allocated to receivables.

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Amount of deferred tax assets or liabilities for the differences between the values assigned and the tax bases of assets and liabilities in a business combination, net of any valuation allowance for deferred tax assets.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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The amount of acquisition cost of a business combination allocated to notes payables and long-term debt assumed from the acquired entity.

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The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

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This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

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The net amount recognized as of the acquisition date for the aggregate assets, including goodwill, in excess of or less than the aggregate liabilities assumed, less the noncontrolling interest in the acquiree. This amount represents the recognized net assets acquired which are attributable to the parent which may also be viewed as the incremental amount of equity attributable to the parent resulting from the business combination.

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The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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The maximum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.

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The minimum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.

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The number of businesses acquired by the entity during the period.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

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