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MERGER OF WABTEC WITH GE TRANSPORTATION (Details) - USD ($)	Feb. 25, 2019	Feb. 22, 2019	Dec. 31, 2018	Sep. 14, 2018	Jun. 08, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)			96,614,946			96,034,352
Preferred stock, shares outstanding (in shares)			0			0
GE Transportation | GE and Pre-Merger Holders
Business Acquisition [Line Items]
Percentage of outstanding shares transferred			49.20%
GE Transportation | General Electric Company
Business Acquisition [Line Items]
Percentage of outstanding shares transferred			9.90%
GE Transportation | General Electric Company | Convertible Preferred Stock
Business Acquisition [Line Items]
Percentage of outstanding shares transferred			15.00%
Senior Notes
Business Acquisition [Line Items]
Debt instrument face amount				$ 2,500,000,000.0
Floating Rate Senior Notes | Senior Notes
Business Acquisition [Line Items]
Debt instrument face amount				500,000,000
Senior Notes Due 2024 | Senior Notes
Business Acquisition [Line Items]
Debt instrument face amount				750,000,000
Senior Notes Due 2028 | Senior Notes
Business Acquisition [Line Items]
Debt instrument face amount				$ 1,250,000,000.00
Line of Credit | Delayed Draw Term Loan
Business Acquisition [Line Items]
Revolving credit facility, amount					$ 400,000,000
Subsequent Event | GE Transportation
Business Acquisition [Line Items]
Consideration transferred	$ 2,875,000,000
Business combination, consideration transferred		$ 10,200,000,000
Subsequent Event | GE Transportation | SpinCo Class B Preferred Stock
Business Acquisition [Line Items]
Business combination, consideration transferred	$ 10,000,000
Subsequent Event | GE Transportation | Convertible Preferred Stock
Business Acquisition [Line Items]
Shares issuable (in shares)	10,000
Wabtec | GE Transportation | SpinCo Class B Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)			10,000
General Electric Company | GE Transportation | SpinCo Class A Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)			15,000
General Electric Company | Subsequent Event | GE Transportation | SpinCo Common Stock
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)	8,700,000,000
General Electric Company | Subsequent Event | GE Transportation | SpinCo Class A Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)	15,000
General Electric Company | Subsequent Event | GE Transportation | SpinCo Class B Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)	10,000
General Electric Company | Subsequent Event | GE Transportation | SpinCo Class C Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)	1
General Electric Company | Minimum | GE Transportation
Business Acquisition [Line Items]
Percentage of common shares outstanding			14.90%
General Electric Company | Maximum | GE Transportation
Business Acquisition [Line Items]
Percentage of common shares outstanding			19.90%
Pre-merger Wabtec Stockholders | GE Transportation
Business Acquisition [Line Items]
Percentage of outstanding shares transferred			50.80%
Pre-merger Wabtec Stockholders | Maximum | GE Transportation
Business Acquisition [Line Items]
Percentage of common shares outstanding			18.50%

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