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Shareholders' Equity And Net Income Per Share Other (Details) - USD ($)			1 Months Ended	9 Months Ended	11 Months Ended
	Dec. 04, 2017	Nov. 22, 2017	Jul. 31, 2017	Sep. 30, 2018	Nov. 22, 2011
Shareholders' Equity and Net Income Per Share [Line Items]
Initial Offering Period					November 22, 2011
Distribution Date	Dec. 04, 2017
Record Date		Nov. 22, 2017
Unsecured Creditors Litigation
Shareholders' Equity and Net Income Per Share [Line Items]
Loss Contingency, Damages Sought, Value Per Unit in Excess of Benchmark				$ 32.50
Loss Contingency, Damages Sought, Unit in Excess of Benchmark				67.50
Unsecured Creditors Litigation | Litigation, Damages Benchmark, Fourth LLP Agreement
Shareholders' Equity and Net Income Per Share [Line Items]
Cumulative Distribution Threshold				7,200,000,000
Payments for Legal Settlements			$ 310,000,000
Maximum [Member] | Unsecured Creditors Litigation
Shareholders' Equity and Net Income Per Share [Line Items]
Loss Contingency, Estimate of Possible Loss				$ 300,000,000

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Distribution Date of Delphi Technologies PLC Spin-Off

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Record Date for the distribution of Delphi Technologies PLC to shareholders by means of a spin-off.

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Shareholders' Equity and Net Income Per Share [Line Items]

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A description of the time period when the company made its initial offering of a class of securities.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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