Amount of other assets and liabilities acquired at the acquisition date.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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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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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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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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Recent Transactions (Details) - USD ($) $ in Millions	3 Months Ended
Recent Transactions (Details) - USD ($) $ in Millions	Mar. 31, 2019	Mar. 31, 2018	Jan. 02, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Payments for business acquired	$ 10	$ 0
Business Combination, Contingent Consideration, Liability	5
Goodwill	$ 1,848			$ 1,853
Cascadia Motion [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Jan. 02, 2019
Payments for business acquired	$ 15
Other intangible assets			$ 5
Goodwill			7
Other assets and liabilities			$ 2
Minimum [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	2 years
Maximum [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years