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Business Combination, Additional Cash Consideration For Tax Benefits

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Percentage Of Shares To Shareholders In Spin Off

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Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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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 charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Price of a single share of a number of saleable stocks of a company.

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BUSINESSES HELD FOR SALE AND DISCONTINUED OPERATIONS - Discontinued Operations, Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Feb. 25, 2019	Mar. 31, 2019	Mar. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from principal business dispositions		$ 569	$ 12
Violation of FIRREA by WMC and GE Capital
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Reserve provision			1,500
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal before income taxes		3,518	4
Gain (loss) on disposal, net of taxes		2,553	3
Transportation \| Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal before income taxes	$ 3,471
Gain (loss) on disposal, net of taxes	2,508	$ 2,508	$ 0
Decrease in additional paid in capital related with spinoff	$ (852)
Percentage of shares to shareholders in spinoff	49.40%
Wabtec
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Fair value of interest in common and preferred shares	$ 3,513
Share price (in dollars per share)	$ 73.45
Wabtec \| Transportation \| Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest (as a percent)	24.90%
Proceeds from principal business dispositions	$ 2,865
Additional cash consideration for tax benefits that will be realized	$ 470
Wabtec \| Transportation \| Discontinued Operations \| Common Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest (as a percent)	24.30%