General	12 Months Ended
Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	GENERAL General and basis of presentation—“Aptiv,” the “Company,” “we,” “us” and “our” refer to Aptiv PLC, a public limited company which was formed under the laws of Jersey on May 19, 2011 as Delphi Automotive PLC, which together with its subsidiaries acquired certain assets of the former Delphi Corporation and completed an initial public offering on November 22, 2011. The former Delphi Corporation (now known as DPH Holdings Corp. (“DPHH”)) and, as the context may require, its subsidiaries and affiliates, are also referred to herein as “Old Delphi.” On December 4, 2017 (the “Distribution Date”), the Company completed the separation (the “Separation”) of its former Powertrain Systems segment by distributing to Aptiv shareholders on a pro rata basis all of the issued and outstanding ordinary shares of Delphi Technologies PLC (“Delphi Technologies”), a public limited company formed to hold the spun-off business. To effect the Separation, the Company distributed to its shareholders one ordinary share of Delphi Technologies for every three Aptiv ordinary shares outstanding as of November 22, 2017, the record date for the distribution. Following the Separation, the remaining company changed its name to Aptiv PLC and New York Stock Exchange ("NYSE") symbol to "APTV." Also, as a result of the Separation, Delphi Technologies became an independent public company trading on the NYSE under the symbol "DLPH" as of the Distribution Date. Delphi Technologies' historical financial results through the Distribution Date are reflected in the Company’s consolidated financial statements as a discontinued operation, as more fully described in Note 25. Discontinued Operations. The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Nature of operations—Aptiv is a leading global technology and mobility company serving the automotive sector. We design and manufacture vehicle components and provide electrical, electronic and active safety technology solutions to the global automotive and commercial vehicle markets. Aptiv is one of the largest vehicle component manufacturers, and its customers include all 25 of the largest automotive original equipment manufacturers (“OEMs”) in the world. Aptiv operates 109 major manufacturing facilities and 14 major technical centers utilizing a regional service model that enables the Company to efficiently and effectively serve its global customers from best cost countries. Aptiv has a presence in 45 countries and has approximately16,000 scientists, engineers and technicians focused on developing market relevant product solutions for its customers. In line with the long term growth in emerging markets, Aptiv has been increasing its focus on these markets, particularly in China, where the Company has a major manufacturing base and strong customer relationships. Corporate history—In October 2005, Old Delphi and certain of its United States (“U.S.”) subsidiaries filed voluntary petitions for reorganization relief under Chapter 11 of the United States Bankruptcy Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the Southern District of New York (the “Bankruptcy Court”). Old Delphi's non-U.S. subsidiaries, which were not included in the Chapter 11 Filings, continued their business operations without supervision from the Bankruptcy Court and were not subject to the requirements of the Bankruptcy Code. On August 19, 2009, Delphi Automotive LLP, a limited liability partnership organized under the laws of England and Wales, was formed for the purpose of acquiring certain assets and subsidiaries of Old Delphi (“the Acquisition”), and on October 6, 2009 (the “Acquisition Date”) Delphi Automotive LLP acquired the major portion of the business of Old Delphi and issued membership interests to a group of investors consisting of lenders to Old Delphi, General Motors Company (“GM”) and the Pension Benefit Guaranty Corporation (the “PBGC”). On March 31, 2011, all of the outstanding Class A and Class C membership interests held by GM and the PBGC were redeemed, respectively, for approximately $4.4 billion. On May 19, 2011, Delphi Automotive PLC was formed as a Jersey public limited company, and had nominal assets, no liabilities and had conducted no operations prior to its initial public offering. On November 22, 2011, in conjunction with the completion of its initial public offering by the selling shareholders, all of the outstanding equity of Delphi Automotive LLP was exchanged for ordinary shares of Delphi Automotive PLC. As a result, Delphi Automotive LLP became a wholly-owned subsidiary of Delphi Automotive PLC. The transaction whereby Delphi Automotive LLP became a wholly-owned subsidiary of Delphi Automotive PLC had no accounting effects. On December 4, 2017, the Company completed the Separation of its former Powertrain Systems segment by distributing to Aptiv shareholders on a pro rata basis all of the outstanding ordinary shares of Delphi Technologies PLC (“Delphi Technologies”), a public limited company formed to hold the spun-off business. To effect the Separation, the Company distributed to its shareholders one ordinary share of Delphi Technologies for every three Aptiv ordinary shares outstanding as of November 22, 2017, the record date for the distribution. Following the Separation, the remaining company changed its name to Aptiv PLC.

GENERAL

General and basis of presentation—“Aptiv,” the “Company,” “we,” “us” and “our” refer to Aptiv PLC, a public limited company which was formed under the laws of Jersey on May 19, 2011 as Delphi Automotive PLC, which together with its subsidiaries acquired certain assets of the former Delphi Corporation and completed an initial public offering on November 22, 2011. The former Delphi Corporation (now known as DPH Holdings Corp. (“DPHH”)) and, as the context may require, its subsidiaries and affiliates, are also referred to herein as “Old Delphi.” On December 4, 2017 (the “Distribution Date”), the Company completed the separation (the “Separation”) of its former Powertrain Systems segment by distributing to Aptiv shareholders on a pro rata basis all of the issued and outstanding ordinary shares of Delphi Technologies PLC (“Delphi Technologies”), a public limited company formed to hold the spun-off business. To effect the Separation, the Company distributed to its shareholders one ordinary share of Delphi Technologies for every three Aptiv ordinary shares outstanding as of November 22, 2017, the record date for the distribution. Following the Separation, the remaining company changed its name to Aptiv PLC and New York Stock Exchange ("NYSE") symbol to "APTV." Also, as a result of the Separation, Delphi Technologies became an independent public company trading on the NYSE under the symbol "DLPH" as of the Distribution Date. Delphi Technologies' historical financial results through the Distribution Date are reflected in the Company’s consolidated financial statements as a discontinued operation, as more fully described in Note 25. Discontinued Operations.

The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”).

Nature of operations—Aptiv is a leading global technology and mobility company serving the automotive sector. We design and manufacture vehicle components and provide electrical, electronic and active safety technology solutions to the global automotive and commercial vehicle markets. Aptiv is one of the largest vehicle component manufacturers, and its customers include all 25 of the largest automotive original equipment manufacturers (“OEMs”) in the world. Aptiv operates 109 major manufacturing facilities and 14 major technical centers utilizing a regional service model that enables the Company to efficiently and effectively serve its global customers from best cost countries. Aptiv has a presence in 45 countries and has approximately16,000 scientists, engineers and technicians focused on developing market relevant product solutions for its customers. In line with the long term growth in emerging markets, Aptiv has been increasing its focus on these markets, particularly in China, where the Company has a major manufacturing base and strong customer relationships.

Corporate history—In October 2005, Old Delphi and certain of its United States (“U.S.”) subsidiaries filed voluntary petitions for reorganization relief under Chapter 11 of the United States Bankruptcy Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the Southern District of New York (the “Bankruptcy Court”). Old Delphi's non-U.S. subsidiaries, which were not included in the Chapter 11 Filings, continued their business operations without supervision from the Bankruptcy Court and were not subject to the requirements of the Bankruptcy Code. On August 19, 2009, Delphi Automotive LLP, a limited liability partnership organized under the laws of England and Wales, was formed for the purpose of acquiring certain assets and subsidiaries of Old Delphi (“the Acquisition”), and on October 6, 2009 (the “Acquisition Date”) Delphi Automotive LLP acquired the major portion of the business of Old Delphi and issued membership interests to a group of investors consisting of lenders to Old Delphi, General Motors Company (“GM”) and the Pension Benefit Guaranty Corporation (the “PBGC”).

On March 31, 2011, all of the outstanding Class A and Class C membership interests held by GM and the PBGC were redeemed, respectively, for approximately $4.4 billion. On May 19, 2011, Delphi Automotive PLC was formed as a Jersey public limited company, and had nominal assets, no liabilities and had conducted no operations prior to its initial public offering. On November 22, 2011, in conjunction with the completion of its initial public offering by the selling shareholders, all of the outstanding equity of Delphi Automotive LLP was exchanged for ordinary shares of Delphi Automotive PLC. As a result, Delphi Automotive LLP became a wholly-owned subsidiary of Delphi Automotive PLC. The transaction whereby Delphi Automotive LLP became a wholly-owned subsidiary of Delphi Automotive PLC had no accounting effects.

On December 4, 2017, the Company completed the Separation of its former Powertrain Systems segment by distributing to Aptiv shareholders on a pro rata basis all of the outstanding ordinary shares of Delphi Technologies PLC (“Delphi Technologies”), a public limited company formed to hold the spun-off business. To effect the Separation, the Company distributed to its shareholders one ordinary share of Delphi Technologies for every three Aptiv ordinary shares outstanding as of November 22, 2017, the record date for the distribution. Following the Separation, the remaining company changed its name to Aptiv PLC.