Delphi Technologies (DLPH) 10-Q 2 Aug 19 2019 Q2 Quarterly report Financial data

Cover Document

Cover Document - shares	6 Months Ended
	Jun. 30, 2019	Jul. 26, 2019
Document and Entity Information [Abstract]
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Amendment Flag	false
Title of 12(b) Security	Ordinary shares. $0.01 par value per share
Entity Filer Category	Large Accelerated Filer
Entity Incorporation, State or Country Code	Y9
Document Transition Report	false
Document Quarterly Report	true
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Entity File Number	001-38110
Entity Registrant Name	DELPHI TECHNOLOGIES PLC
Entity Central Index Key	0001707092
Entity Tax Identification Number	98-1367514
Entity Address, Address Line One	One Angel Court
Entity Address, Address Line Two	10th Floor
Entity Address, City or Town	London
Entity Address, Postal Zip Code	EC2R 7HJ
Entity Address, Country	GB
City Area Code	011-
Local Phone Number	44-020-305-74300
Entity Information, Former Legal or Registered Name	N/A
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Trading Symbol	DLPH
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		87,111,264

Consolidated Statements Of Oper

Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 1,121	$ 1,232	$ 2,272	$ 2,528
Operating expenses:
Cost of sales	955	991	1,938	2,037
Selling, general and administrative	103	105	207	202
Amortization	2	2	8	6
Restructuring	5	12	8	23
Total operating expenses	1,065	1,110	2,161	2,268
Operating income	56	122	111	260
Interest expense	(18)	(19)	(36)	(39)
Other income (expense), net	8	4	(4)	10
Income before income taxes and equity income	46	107	71	231
Income tax expense	(14)	(20)	(22)	(42)
Income before equity income	32	87	49	189
Equity (loss) income, net of tax	(1)	3	1	6
Net income	31	90	50	195
Net income attributable to noncontrolling interest	4	4	7	11
Net income attributable to Delphi Technologies	$ 27	$ 86	$ 43	$ 184
Net income per share attributable to Delphi Technologies:
Basic (in dollars per share)	$ 0.31	$ 0.97	$ 0.49	$ 2.07
Diluted (in dollars per share)	$ 0.31	$ 0.97	$ 0.49	$ 2.07
Weighted Average Number of Shares Outstanding [Abstract]
Basic (in shares)	87,770	88,780	88,110	88,750
Diluted (in shares)	88,110	89,050	88,330	88,980
Cash dividends declared per share	$ 0	$ 0.17	$ 0	$ 0.34

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 31	$ 90	$ 50	$ 195
Other comprehensive income (loss):
Currency translation adjustments	(15)	(85)	(6)	(54)
Net change in unrecognized gain on derivative instruments, net of tax	(9)	3	7	2
Employee benefit plans adjustment, net of tax	9	24	43	16
Other comprehensive income (loss)	(15)	(58)	44	(36)
Comprehensive income	16	32	94	159
Comprehensive income attributable to noncontrolling interests	2	0	6	9
Comprehensive income attributable to Delphi Technologies	$ 14	$ 32	$ 88	$ 150

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 162	$ 359
Restricted cash	1	1
Accounts receivable, net	884	878
Inventories	553	521
Other current assets	178	172
Total current assets	1,778	1,931
Long-term assets:
Property, net	1,509	1,445
Investments in affiliates	39	44
Goodwill	7	7
Intangible Assets, Net (Excluding Goodwill)	61	69
Deferred Tax Assets, Net, Noncurrent	273	280
Other long-term assets	236	117
Total long-term assets	2,125	1,962
Total assets	3,903	3,893
Current liabilities:
Short-term debt	39	43
Accounts payable	832	906
Accrued liabilities	443	428
Total current liabilities	1,314	1,377
Long-term liabilities:
Long-term debt	1,475	1,488
Pension and other postretirement benefit obligations	408	467
Other long-term liabilities	206	123
Total long-term liabilities	2,089	2,078
Total liabilities	3,403	3,455
Commitments and contingencies
Shareholders' equity:
Preferred shares, $0.01 par value per share, 50,000,000 shares authorized, none issued and outstanding	0	0
Ordinary shares, $0.01 par value per share, 1,200,000,000 shares authorized, 87,111,264 and 88,491,963 issued and outstanding as of June 30, 2019 and December 31, 2018, respectively	1	1
Additional paid-in capital	406	407
Retained earnings	317	296
Accumulated other comprehensive loss	(367)	(412)
Total Delphi Technologies shareholders' equity	357	292
Noncontrolling interest	143	146
Total shareholders' equity	500	438
Total liabilities and shareholders' equity	$ 3,903	$ 3,893

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred shares, par value per share	$ 0.01	$ 0.01
Preferred shares, authorized	50,000,000	50,000,000
Preferred shares, outstanding	0	0
Ordinary Shares, Par or Stated Value Per Share	$ 0.01	$ 0.01
Ordinary shares, authorized	1,200,000,000	1,200,000,000
Ordinary shares, outstanding	87,111,264	88,491,963

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 50	$ 195
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	102	92
Amortization	8	6
Amortization of deferred debt issuance costs	2	2
Restructuring expense, net of cash paid	(11)	(17)
Deferred income taxes	(2)	3
Pension and other postretirement benefit expenses	18	22
Income from equity method investments, net of dividends received	(1)	(6)
Gain on Disposition of Other Assets	(1)	0
Share-based compensation	9	10
Changes in operating assets and liabilities:
Accounts receivable, net	(6)	64
Inventories	(32)	(22)
Other assets	7	28
Accounts payable	(13)	(72)
Accrued and other long-term liabilities	(10)	(37)
Other, net	(3)	(6)
Pension contributions	(26)	(23)
Net cash provided by operating activities	91	239
Cash flows from investing activities:
Capital expenditures	(234)	(123)
Proceeds from sale of property	5	1
Proceeds from Insurance Settlement, Investing Activities	0	1
Cost of technology investments	0	(7)
Settlement of undesignated derivatives	(1)	(10)
Net cash used in investing activities	(230)	(138)
Cash flows from financing activities:
Net repayments under other short-term debt agreements	0	(2)
Repayments under long-term debt agreements	(19)	(9)
Dividend payments of consolidated affiliates to minority shareholders	(8)	(10)
Distribution of cash dividends	0	(30)
Taxes withheld and paid on employees' restricted share awards	(2)	(5)
Repurchase of ordinary shares	(29)	0
Net cash used in financing activities	(58)	(56)
Effect of exchange rate fluctuations on cash and cash equivalents	0	(12)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(197)	33
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, beginning	360	339
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, end	$ 163	$ 372

Consolidated Statement Of Share

Consolidated Statement Of Shareholders' Equity - USD ($) $ in Millions	Total	Ordinary Shares	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Total Delphi Technologies Shareholders' Equity	Noncontrolling Interest
Balance at beginning of year at Dec. 31, 2017	$ 232	$ 1	$ 431	$ 7	$ (371)	$ 68	$ 164
Shares outstanding, beginning of period at Dec. 31, 2017		89,000,000
Net income	105			98		98	7
Other comprehensive income (loss)	22				20	20	2
Dividends on ordinary shares	(15)			(15)		(15)
Dividend payments of consolidated affiliates to minority shareholders	(10)						(10)
Separation related adjustments	(32)		(32)			(32)
Share-based compensation	5		5			5
Taxes witheld on employees' restricted share award vestings	(5)		(5)			(5)
Balance at end of year at Mar. 31, 2018	302	$ 1	399	90	(351)	139	163
Shares outstanding, end of period at Mar. 31, 2018		89,000,000
Balance at beginning of year at Dec. 31, 2017	232	$ 1	431	7	(371)	68	164
Shares outstanding, beginning of period at Dec. 31, 2017		89,000,000
Net income	195
Other comprehensive income (loss)	$ (36)
Stock Repurchased and Retired During Period, Shares	0
Repurchase of ordinary shares	$ 0
Balance at end of year at Jun. 30, 2018	320	$ 1	400	161	(405)	157	163
Shares outstanding, end of period at Jun. 30, 2018		89,000,000
Balance at beginning of year at Mar. 31, 2018	302	$ 1	399	90	(351)	139	163
Shares outstanding, beginning of period at Mar. 31, 2018		89,000,000
Net income	90			86		86	4
Other comprehensive income (loss)	(58)				(54)	(54)	(4)
Dividends on ordinary shares	(15)			(15)		(15)
Separation related adjustments	$ (4)		(4)			(4)
Stock Repurchased and Retired During Period, Shares	0
Share-based compensation	$ 5		5			5
Repurchase of ordinary shares	0
Balance at end of year at Jun. 30, 2018	320	$ 1	400	161	(405)	157	163
Shares outstanding, end of period at Jun. 30, 2018		89,000,000
Balance at beginning of year at Dec. 31, 2018	438	$ 1	407	296	(412)	292	146
Shares outstanding, beginning of period at Dec. 31, 2018		89,000,000
Net income	19			16		16	3
Other comprehensive income (loss)	59				58	58	1
Dividend payments of consolidated affiliates to minority shareholders	(8)						(8)
Stock Repurchased and Retired During Period, Shares		(1,000,000)
Share-based compensation	4		4			4
Repurchase of ordinary shares	(15)		(4)	(11)		(15)
Taxes witheld on employees' restricted share award vestings	(1)		(1)			(1)
Balance at end of year at Mar. 31, 2019	496	$ 1	406	301	(354)	354	142
Shares outstanding, end of period at Mar. 31, 2019		88,000,000
Balance at beginning of year at Dec. 31, 2018	438	$ 1	407	296	(412)	292	146
Shares outstanding, beginning of period at Dec. 31, 2018		89,000,000
Net income	50
Other comprehensive income (loss)	$ 44
Stock Repurchased and Retired During Period, Shares	(1,583,876)
Repurchase of ordinary shares	$ (30)
Balance at end of year at Jun. 30, 2019	500	$ 1	406	317	(367)	357	143
Shares outstanding, end of period at Jun. 30, 2019		87,000,000
Balance at beginning of year at Mar. 31, 2019	496	$ 1	406	301	(354)	354	142
Shares outstanding, beginning of period at Mar. 31, 2019		88,000,000
Net income	31			27		27	4
Other comprehensive income (loss)	(15)				(13)	(13)	(2)
Dividend payments of consolidated affiliates to minority shareholders	$ (1)						(1)
Stock Repurchased and Retired During Period, Shares	(845,959)	(1,000,000)
Share-based compensation	$ 5		5			5
Repurchase of ordinary shares	(15)		(4)	(11)		(15)
Taxes witheld on employees' restricted share award vestings	(1)		(1)			(1)
Balance at end of year at Jun. 30, 2019	$ 500	$ 1	$ 406	$ 317	$ (367)	$ 357	$ 143
Shares outstanding, end of period at Jun. 30, 2019		87,000,000

General

General	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	GENERAL On December 4, 2017 , Delphi Technologies PLC became an independent publicly-traded company, formed under the laws of Jersey, as a result of the separation of the Powertrain Systems segment, which included the aftermarket operations, from Aptiv PLC, formerly known as Delphi Automotive PLC (the “Former Parent”). The separation was completed in the form of a pro-rata distribution to the Former Parent’s shareholders of 100% of the outstanding ordinary shares of Delphi Technologies PLC (the “Separation”). References hereinafter to “Delphi Technologies,” “we,” “us,” “our” or the “Company” refer to Delphi Technologies PLC. Nature of Operations We are a leader in the development, design and manufacture of integrated powertrain technologies that optimize engine performance, increase vehicle efficiency, reduce emissions, improve driving performance, and support increasing electrification of vehicles. We are a global supplier to original equipment manufacturers (“OEMs”) seeking to manufacture vehicles that meet and exceed increasingly stringent global regulatory requirements and satisfy consumer demands for an enhanced user experience. We provide advanced fuel injection systems, actuators, valvetrain products, sensors, electronic control modules and power electronics technologies. Additionally, we offer a full spectrum of aftermarket products serving a global customer base. We sell a comprehensive portfolio of advanced technologies and solutions for all propulsion systems to global OEMs of both light vehicles (passenger cars, trucks, vans and sport-utility vehicles) and commercial vehicles (light-duty, medium-duty and heavy-duty trucks, commercial vans, buses and off-highway vehicles). In addition, we manufacture and sell a wide range of fuel injection, electronics and engine management, maintenance, diagnostics, and other products, to leading aftermarket companies, including independent retailers and wholesale distributors. We also add aftermarket know-how in category management, logistics, training, marketing and other dedicated services to provide a full range of aftermarket solutions throughout vehicles’ lives. Basis of Presentation The unaudited consolidated financial statements included herein have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete annual financial statements. These financial statements include all adjustments, which consist of normal recurring items, necessary for a fair presentation. The operating results for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the full year. These financial statements should be read in conjunction with the Delphi Technologies 2018 Annual Report on Form 10-K.

Significant Accounting Policies

Significant Accounting Policies	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	SIGNIFICANT ACCOUNTING POLICIES There have been no material changes on the Company’s significant accounting policies since the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 , except those described below. Recently adopted accounting pronouncements —In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) . The Company adopted Accounting Standards Codification (“ASC”) 842 as of January 1, 2019 using the optional modified retrospective transition method and did not recast the comparative periods. ASC 842 requires lessees to recognize a lease liability and a right-of-use asset on the balance sheet for all leases, with the exception of short-term leases. For leases that meet the definition of a short-term lease, the Company has elected to apply the short-term lease exemption, and accordingly, they are not recorded on the balance sheet. The Company has applied the practical expedients in ASC 842 related to not separating lease and nonlease components of contracts, both when the Company is a lessee and lessor. In addition, the Company elected the package of practical expedients, related to existing leases at the time of adoption, that allowed the Company to carry forward the accounting assessments for: i) whether contracts are or contain leases, ii) the lease classification and iii) the initial direct costs. Delphi Technologies also elected the practical expedient related to existing land easements, that allowed the Company to carry forward the accounting treatment for land easements in existing agreements. The Company uses an estimated incremental borrowing rate, which is derived from information available at lease commencement, in determining the present value of lease payments. When calculating the incremental borrowing rates, the Company gives consideration to the applicable margin based on our corporate credit ratings, as defined by the Credit Agreement, as well as publicly available data by country for instruments with similar characteristics. The adoption of this guidance resulted in the recognition of operating lease right-of-use assets and operating lease liabilities of approximately $117 million and $120 million , respectively, on the Company’s consolidated balance sheet as of June 30, 2019 . The adoption did not have a material impact on its consolidated statements of operations or cash flows. Refer to Note 6. Leases for additional information. Delphi Technologies adopted ASU 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting in the first quarter of 2019 . This guidance expands the scope of ASC Topic 718, which previously only included share-based payments to employees, to include share-based payments issued to nonemployees for goods or services. Consequently, the accounting for share-based payments to nonemployees and employees is now substantially aligned. The adoption of this guidance did not have a material impact on the Company’s consolidated financial statements.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories	INVENTORIES, NET A summary of inventories is shown below: June 30, December 31, (in millions) Productive material $ 250 $ 250 Work-in-process 48 36 Finished goods 255 235 Total $ 553 $ 521

Assets

Assets	6 Months Ended
	Jun. 30, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Assets	ASSETS Other current assets consisted of the following: June 30, December 31, (in millions) Value added tax receivable $ 98 $ 98 Reimbursable engineering costs 19 17 Prepaid insurance and other expenses 19 14 Income and other taxes receivable 18 16 Notes receivable 10 15 Derivative financial instruments (Note 16) 6 4 Return assets (Note 12) 5 7 Other 3 1 Total $ 178 $ 172 Other long-term assets consisted of the following: June 30, December 31, (in millions) Operating lease assets (Note 6) $ 117 $ — Income and other taxes receivable 41 53 Investment in Tula Technology, Inc. 21 21 Investment in PolyCharge America, Inc. 7 7 Derivative financial instruments (Note 16) 5 — Debt issuance costs 3 3 Reimbursable engineering costs 3 — Other 39 33 Total $ 236 $ 117

Liabilities

Liabilities	6 Months Ended
	Jun. 30, 2019
Other Liabilities Disclosure [Abstract]
Liabilities	LIABILITIES Accrued liabilities consisted of the following: June 30, December 31, (in millions) Income and other taxes payable $ 62 $ 63 Warranty obligations (Note 7) 60 68 Payroll-related obligations 50 45 Restructuring (Note 8) 42 46 Deferred reimbursable engineering 37 31 Accrued rebates 27 29 Operating lease liabilities (Note 6) 21 — Freight 17 20 Employee benefits 13 16 Outside services 12 13 Accrued interest 10 12 Deferred cost reimbursement 7 5 Customer deposits 6 5 Other 79 75 Total $ 443 $ 428 Other long-term liabilities consisted of the following: June 30, December 31, (in millions) Operating lease liabilities (Note 6) $ 99 $ — Accrued income taxes 46 46 Warranty obligations (Note 7) 25 28 Deferred income taxes 15 14 Restructuring (Note 8) 11 19 Derivative financial instruments (Note 16) 5 6 Environmental (Note 11) 2 2 Other 3 8 Total $ 206 $ 123

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases Disclosure [Text Block]	LEASES On January 1, 2019, Delphi Technologies adopted ASC Topic 842, Leases , which requires lessees to recognize a lease liability and a right-of-use asset on the balance sheet for leases, with the exception of short-term leases. The Company leases real estate (including manufacturing sites and technical centers), office equipment, automobiles, forklifts and certain other equipment under finance and operating leases. As of June 30, 2019 , the remaining lease terms range from 1 year to 10 years . Many of the Company’s leases include rent escalation clauses, renewal options and/or termination options that are factored into the Company’s determination of lease payments and lease term, as appropriate. During the six months ended June 30, 2019, the Company obtained $6 million of lease assets in exchange for new operating lease liabilities. The Company is a lessor for certain owned real estate. Rental income for these leases is included within other income, net and was not material for the six months ended June 30, 2019 . The table below presents supplemental balance sheet information related to leases as of June 30, 2019 : June 30, 2019 (in millions) Assets Balance Sheet Location Operating lease assets Other long-term assets (Note 4) $ 117 Finance lease assets Property, net 14 Total lease assets $ 131 Liabilities Current Operating leases Accrued liabilities (Note 5) $ 21 Finance leases Short-term debt (Note 9) 2 Long-term Operating leases Other long-term liabilities (Note 5) 99 Finance leases Long-term debt (Note 9) 13 Total lease liabilities $ 135 The table below presents the components of lease costs for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 (in millions) Finance lease cost - amortization of lease assets (1) $ — $ 1 Operating lease cost (2) 10 18 Total lease cost $ 10 $ 19 (1) Includes interest on finance lease liabilities, which was not material. (2) Includes short-term leases and variable lease costs, which were not material. The table below presents the weighted-average remaining lease term and discount rate as of June 30, 2019 : Weighted-average remaining lease term (in years): Operating leases 6.68 Finance leases 8.60 Weighted-average discount rate: Operating leases 6.10 % Finance leases 4.11 % The table below presents supplemental cash flow information related to leases during the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 (in millions) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases (1) $ 7 $ 14 (1) Operating and financing cash flows for finance leases were not material for the three and six months ended ended June 30, 2019 . The table below reconciles the undiscounted future minimum lease payments to the lease liabilities recorded on the balance sheet as of June 30, 2019 : Operating Leases Finance Leases Total (in millions) Remainder of 2019 $ 13 $ 1 $ 14 2020 26 2 28 2021 24 2 26 2022 20 2 22 2023 14 2 16 Thereafter 49 9 58 Total future minimum lease payments 146 18 164 Less: amount of lease payments representing interest (26 ) (3 ) (29 ) Total lease liabilities $ 120 $ 15 $ 135 As of June 30, 2019 , the Company has an additional lease that has not yet commenced totaling $14 million of undiscounted future minimum lease payments. This lease will commence in 2020 with a lease term of 11 years .

Warranty Obligations

Warranty Obligations	6 Months Ended
	Jun. 30, 2019
Product Warranties Disclosures [Abstract]
Warranty Obligations	WARRANTY OBLIGATIONS Delphi Technologies has recognized its best estimate for its total aggregate warranty reserves, including product recall costs, across all of its operating segments as of June 30, 2019 . The Company estimates the reasonably possible amount to ultimately resolve all matters in excess of the recorded reserves as of June 30, 2019 to be $0 million to $5 million . The table below summarizes the activity in the product warranty liability for the six months ended June 30, 2019 : Warranty Obligations (in millions) Accrual balance at beginning of period $ 96 Provision for estimated warranties incurred during the period 19 Changes in estimate for pre-existing warranties — Settlements made during the period (in cash or in kind) (30 ) Foreign currency translation and other — Accrual balance at end of period $ 85

Restructuring

Restructuring	6 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Restructuring	RESTRUCTURING The Company’s restructuring activities are undertaken as necessary to implement management’s strategy, streamline operations, take advantage of available capacity and resources, and ultimately achieve net cost reductions. These activities generally relate to the realignment of existing manufacturing capacity and closure of facilities and other exit or disposal activities, as it relates to executing Delphi Technologies’ strategy, either in the normal course of business or pursuant to significant restructuring programs. As part of the Company’s continued efforts to optimize its cost structure, it has undertaken several restructuring programs which include workforce reductions as well as plant closures. These programs are primarily focused on the continued rotation of our manufacturing footprint to best-cost locations in Europe and on reducing global overhead costs. The Company recorded employee-related and other restructuring charges related to these programs totaling approximately $5 million and $8 million during the three and six months ended June 30, 2019 , respectively. The Company recorded employee-related and other restructuring charges related to these programs totaling approximately $12 million and $23 million during the three and six months ended June 30, 2018 , respectively, of which $5 million and $13 million was recognized for programs focused on the continued rotation of our manufacturing footprint to best cost locations in Europe. Restructuring charges for employee separation and termination benefits are paid either over the severance period or in a lump sum in accordance with either statutory requirements or individual agreements. Delphi Technologies incurred cash expenditures related to its restructuring programs of approximately $19 million and $40 million in the six months ended June 30, 2019 and 2018 , respectively. The following table summarizes the restructuring charges recorded for the three and six months ended June 30, 2019 and 2018 by operating segment: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) Powertrain Systems $ 4 $ 11 $ 7 $ 22 Aftermarket 1 1 1 1 Total $ 5 $ 12 $ 8 $ 23 The table below summarizes the activity in the restructuring liability for the six months ended June 30, 2019 : Employee Termination Benefits Liability Other Exit Costs Liability Total (in millions) Accrual balance at December 31, 2018 $ 64 $ 1 $ 65 Provision for estimated expenses during the period 8 — 8 Payments made during the period (19 ) — (19 ) Foreign currency and other (1 ) — (1 ) Accrual balance at June 30, 2019 $ 52 $ 1 $ 53

Debt

Debt	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Debt	DEBT The following is a summary of debt outstanding, net of unamortized issuance costs and discounts, as of June 30, 2019 and December 31, 2018 , respectively: June 30, 2019 December 31, 2018 (in millions) $750 million Term Loan A Facility, due 2022 (net of $3 and $4 unamortized issuance costs) $ 709 $ 727 $800 million Senior Notes at 5.00%, due 2025 (net of $11 and $12 unamortized issuance costs and $3 and $3 discount, respectively) 786 785 Finance lease liabilities and other 19 19 Total debt 1,514 1,531 Less: current portion (39 ) (43 ) Long-term debt $ 1,475 $ 1,488 Credit Agreement On September 7, 2017 , Delphi Technologies and its wholly-owned subsidiary Delphi Powertrain Corporation entered into a credit agreement (the “Credit Agreement”) with JPMorgan Chase Bank, N.A., as administrative agent (the “Administrative Agent”), with respect to $1.25 billion in senior secured credit facilities. The Credit Agreement consists of a senior secured five-year $750 million term loan facility (the “Term Loan A Facility”) and a $500 million five-year senior secured revolving credit facility (the “Revolving Credit Facility”) (collectively, the “Credit Facilities”) with the lenders party thereto and JPMorgan Chase Bank, N.A. We incurred $9 million of issuance costs in connection with the Credit Agreement. As of June 30, 2019 , there were no amounts drawn on the Revolving Credit Facility. The Credit Agreement contains certain affirmative and negative covenants customary for financings of this type that, among other things, limit our and our subsidiaries’ ability to incur additional indebtedness or liens, to dispose of assets, to make certain fundamental changes, to designate subsidiaries as unrestricted, to make certain investments, to prepay certain indebtedness and to pay dividends, or to make other distributions or redemptions/repurchases, with respect to our and our subsidiaries’ equity interests. In addition, the Credit Agreement requires that we maintain a consolidated net leverage ratio (the ratio of Consolidated Total Indebtedness to Consolidated Adjusted EBITDA, each as defined in the Credit Agreement) of not greater than 3.5 to 1.0 . The Credit Agreement also contains events of default customary for financings of this type, including certain customary change of control events. The Company was in compliance with the Credit Agreement covenants as of June 30, 2019 . Senior Notes On September 28, 2017 , Delphi Technologies PLC issued $800 million in aggregate principal amount of 5.00% senior unsecured notes due 2025 in a transaction exempt from registration under the Securities Act (the “Senior Notes”). The Senior Notes indenture contains certain restrictive covenants, including with respect to Delphi Technologies’ (and subsidiaries) ability to incur liens, enter into sale and leaseback transactions and merge with or into other entities. The Company was in compliance with the Senior Notes covenants as of June 30, 2019 . Other Financing Receivable factoring —The Company entered into arrangements with various financial institutions to sell eligible trade receivables from certain Aftermarket customers in North America and Europe. These arrangements can be terminated at any time subject to prior written notice. The receivables under these arrangements are sold to a third party without recourse to the Company and are therefore accounted for as true sales. During the three and six months ended June 30, 2019 , $43 million and $74 million of receivables were sold under these arrangements, and expenses of $1 million and $2 million were recognized within interest expense, respectively. During the three and six months ended June 30, 2018 , $25 million and $45 million of receivables were sold under these arrangements, and expenses of $1 million and $2 million were recognized within interest expense, respectively. In addition, during the six months ended June 30, 2019 and June 30, 2018 , one of the Company’s European subsidiaries factored, without recourse, receivables related to certain foreign research credits to a financial institution. These transactions were accounted for as true sales of the receivables, and the Company therefore derecognized approximately $21 million and $22 million from other long-term assets in the consolidated balance sheet as of June 30, 2019 and June 30, 2018 , respectively, as a result of these transactions. During the three and six months ended June 30, 2019 and June 30, 2018 , less than $1 million of expenses were recognized within interest expense related to this transaction. Finance leases —There were approximately $15 million and $14 million of finance lease obligations outstanding as of June 30, 2019 and December 31, 2018 , respectively. Interest —Cash paid for interest related to debt outstanding, including the effect of interest rate and cross currency swaps, totaled $35 million and $37 million , for the six months ended June 30, 2019 and 2018 , respectively.

Pension Benefits

Pension Benefits	6 Months Ended
	Jun. 30, 2019
Retirement Benefits [Abstract]
Pension Benefits	PENSION BENEFITS The Company sponsors defined benefit pension plans for certain employees and retirees outside of the U.S. Using appropriate actuarial methods and assumptions, the Company’s defined benefit pension plans are accounted for in accordance with FASB ASC Topic 715, Compensation—Retirement Benefits. The Company’s primary non-U.S. plans are located in the United Kingdom (“U.K.”), France and Mexico. The U.K. and certain Mexican plans are funded. In addition, the Company has defined benefit plans in South Korea, Turkey and Italy for which amounts are payable to employees immediately upon separation. The obligations for these plans are recorded over the requisite service period. Delphi Technologies does not have any U.S. pension assets or liabilities. Effective March 31, 2019, the Company has frozen future accruals for nearly all U.K. based employees under the related defined benefit plans, replacing them with contributions under defined contribution plans effective April 1, 2019, including additional contributions and other payments to impacted employees over a two-year transition period. As a result of this change, the Company realized a one-time reduction to its pension obligation of $33 million , along with a one-time charge of $15 million in the six months ended June 30, 2019 , related to curtailing the defined benefit pension plans in the U.K. The Company also recognized a charge of $2 million and $9 million in the three and six months ended June 30, 2019 , respectively, related to transitional payments to impacted employees. The Company excluded these charges, and expects to exclude related future charges, from our calculation of Adjusted Operating Income. The amounts shown below reflect the non-U.S. plans’ defined benefit pension expense for the three and six months ended June 30, 2019 and 2018 : Three Months Ended June 30, 2019 2018 (in millions) Service cost $ 2 $ 9 Interest cost 9 9 Expected return on plan assets (15 ) (13 ) Amortization of actuarial losses 1 6 Net periodic benefit cost $ (3 ) $ 11 Six Months Ended June 30, 2019 2018 (in millions) Service cost $ 9 $ 19 Interest cost 18 18 Expected return on plan assets (29 ) (27 ) Curtailment loss 15 — Amortization of actuarial losses 5 12 Net periodic benefit cost $ 18 $ 22 Other postretirement benefit obligations were $1 million and $1 million at June 30, 2019 and December 31, 2018 , respectively.

Commitments And Contingencies

Commitments And Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies	COMMITMENTS AND CONTINGENCIES Ordinary Business Claims In the normal course of our business, we are named from time to time as a defendant in various legal actions, including arbitrations, class actions, and other litigation. We also from time to time receive subpoenas and other inquiries or requests for information from U.S. and foreign federal, state and local governments on a variety of matters. We accrue for matters when we believe that losses are probable and can be reasonably estimated. Considering, among other things, the legal defenses available and existing accruals, it is inherently difficult in many matters to determine whether loss is probable or reasonably possible or to estimate the size or range of the possible loss. Accordingly adverse outcomes from such proceedings could exceed the amounts accrued by an amount that could be material to our results of operations or cash flows in any particular reporting period. We estimate our reasonably possible loss in excess of the amounts accrued for ordinary business claims to be up to $20 million , exclusive of the environmental matters discussed below. Environmental Matters Delphi Technologies is subject to the requirements of U.S. federal, state, local and non-U.S. environmental and safety and health laws and regulations. As of June 30, 2019 and December 31, 2018 , the undiscounted reserve for environmental investigation and remediation was approximately $3 million (of which $1 million was recorded in accrued liabilities and $2 million was recorded in other long-term liabilities) and $3 million (of which $1 million was recorded in accrued liabilities and $2 million was recorded in other long-term liabilities), respectively. At June 30, 2019 , the difference between the recorded liabilities and the reasonably possible range of potential loss was not material.

Revenue

Revenue	6 Months Ended
	Jun. 30, 2019
Revenue [Abstract]
Revenue from Contract with Customer [Text Block]	12. REVENUE Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring promised goods or services. The Company generally recognizes revenue when it satisfies a performance obligation by transferring control over a product to a customer. From time to time, we enter into pricing agreements with our customers that provide for price reductions, some of which are conditional upon achieving certain criteria. In these instances, revenue is recognized based on the agreed-upon price at the time of shipment. Nature of Goods The majority of our revenue is recorded at a point in time as defined by ASC 606 as the customers obtain control of the product upon title transfer and not as the product is manufactured or developed. For certain customers, based on specific terms and conditions pertaining to termination for convenience, Delphi Technologies concluded that it had an enforceable right to payment for performance completed to date and the products have no alternative use to the Company, which requires the recognition of revenue over time as defined by ASC 606. The impact on both revenue and operating income from recognizing revenue over time instead of point in time is not significant. The major product groups within the Powertrain Systems operating segment include internal combustion engine products and electronics & electrification products. The major sales channels within the Aftermarket operating segment include aftermarket products sold to independent aftermarket customers and original equipment service customers. The amount of revenue recognized for these products is based on the purchase order price and adjusted for revenue allocated to variable consideration (i.e. estimated rebates and price discounts), as applicable. Our payment terms are based on customary business practices and vary by customer type and products offered. The term between invoicing and when payment is due is not significant. Disaggregation of Revenue In the following table, net sales to outside customers, based on the manufacturing location, is disaggregated by primary geographical market: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) North America $ 314 $ 349 $ 652 $ 705 Europe 520 549 1,062 1,115 Asia Pacific 254 300 490 639 South America 33 34 68 69 Total $ 1,121 $ 1,232 $ 2,272 $ 2,528 The Powertrain Systems segment primarily serves OEMs along with certain Tier 1 suppliers (one that supplies vehicle components directly to manufacturers) and the Aftermarket segment serves independent aftermarket customers and original equipment service customers. In the following table, net sales is disaggregated by major product group, sales channels and type of customer: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) Sales to OEMs and Tier 1 customers: Internal combustion engine products $ 705 $ 749 $ 1,427 $ 1,544 Electronics & electrification products 202 268 438 552 Total sales to OEMs and Tier 1 customers (Powertrain Systems segment) 907 1,017 1,865 2,096 Sales to independent aftermarket customers 159 159 300 314 Sales to original equipment service customers 55 56 107 118 Total sales to aftermarket customers (Aftermarket segment) $ 214 $ 215 $ 407 $ 432 Total $ 1,121 $ 1,232 $ 2,272 $ 2,528 Contract Balances As discussed above, certain customers have contracts with specific terms and conditions which require recognition of revenue over time as defined by ASC 606. As of June 30, 2019 , the recognition of revenue over time resulted in approximately $1 million of unbilled accounts receivable, which is included in accounts receivable, net. There were no other contract assets or liabilities as of June 30, 2019 , as defined by ASC 606. Return Assets The Aftermarket segment provides certain customers with a right of return. The Company recognizes an estimated return asset (and adjusts for cost of sales) for the right to recover the products returned by the customer. ASC 606 requires that return assets be presented separately from inventory. As of June 30, 2019 and December 31, 2018 , the Company had return assets of $5 million and $7 million , respectively, included in other current assets. Practical Expedients and Exemptions For our Powertrain Systems segment, we define the contract with the customer as the combination of a current purchase order and a current production schedule issued by the customer. For our Aftermarket segment, we define the contract with the customer as the combination of a current purchase order and a master agreement with the customer. Although there are instances where the master agreements may extend beyond one year, there are generally no purchase orders with an expected duration beyond a year. There are generally no performance obligations outstanding beyond a year. The Company generally does not enter into fixed long-term supply agreements. The Company applies the exemption in ASC 606 and does not disclose information about remaining performance obligations that have original expected durations of one year or less. In addition, the Company applies the practical expedient in ASC 340 and immediately expenses contract acquisition costs when incurred, including sales commissions, because the amortization period would be one year or less.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES At the end of each interim period, the Company makes its best estimate of the annual expected effective income tax rate and applies that rate to its ordinary year-to-date earnings or loss. The income tax provision or benefit related to unusual or infrequent items, if applicable, that will be separately reported or reported net of their related tax effects are individually computed and recognized in the interim period in which those items occur. In addition, the effect of changes in enacted tax laws or rates, tax status, judgment on the realizability of a beginning-of-the-year deferred tax asset in future years or income tax contingencies is recognized in the interim period in which the change occurs. The computation of the annual expected effective income tax rate at each interim period requires certain estimates and assumptions including, but not limited to, the expected pre-tax income (or loss) for the year, projections of the proportion of income (and/or loss) earned and taxed in respective jurisdictions, permanent and temporary differences, and the likelihood of the realizability of deferred tax assets generated in the current year. Jurisdictions with a projected loss for the year or a year-to-date loss for which no tax benefit or expense can be recognized due to a valuation allowance are excluded from the estimated annual effective tax rate. The impact of such an exclusion could result in a higher or lower effective tax rate during a particular quarter, based upon the composition and timing of actual earnings compared to annual projections. The estimates used to compute the provision or benefit for income taxes may change as new events occur, additional information is obtained or as our tax environment changes. To the extent that the expected annual effective income tax rate changes, the effect of the change on prior interim periods is included in the income tax provision in the period in which the change in estimate occurs. The Company’s income tax expense and effective tax rate for the six months ended June 30, 2019 and 2018 were as follows: Six Months Ended June 30, 2019 2018 Income tax expense $ 22 $ 42 Effective tax rate 31 % 18 % The Company’s tax rate is affected by the fact that Delphi Technologies PLC, its parent entity, is a U.K. resident taxpayer, the tax rates in the other jurisdictions in which the Company operates, the relative amount of income earned by jurisdiction and the relative amount of losses or income for which no tax benefit or expense was recognized due to a valuation allowance. The Company’s effective tax rate for the six months ended June 30, 2019 was impacted by unfavorable changes in geographic income mix in 2019 as compared to 2018. The Company’s effective tax rate for the six months ended June 30, 2019 includes net discrete tax benefit of less than $1 million . The effective tax rate for the six months ended June 30, 2018 was impacted by favorable changes in geographic income mix in 2018 as compared to 2017. The Company’s effective tax rate for the six months ended June 30, 2018 includes net discrete tax expense of $2 million . Delphi Technologies PLC is a U.K. resident taxpayer and as such is generally not subject to U.K. tax on remitted foreign earnings. Cash paid or withheld for income taxes was $28 million and $51 million for the six months ended June 30, 2019 and 2018 respectively.

Shareholders' Equity And Net In

Shareholders' Equity And Net Income Per Share	6 Months Ended
	Jun. 30, 2019
Shareholders' Equity and Net Income Per Share Note [Abstract]
Shareholders' Equity And Net Income Per Share	SHAREHOLDERS’ EQUITY AND NET INCOME PER SHARE Net Income Per Share Basic net income per share is computed by dividing net income attributable to Delphi Technologies by the weighted average number of ordinary shares outstanding during the period. Diluted net income per share reflects the weighted average dilutive impact of all potentially dilutive securities from the date of issuance and is computed using the treasury stock method by dividing net income attributable to Delphi Technologies by the diluted weighted average number of ordinary shares outstanding. For all periods presented the calculation of net income per share contemplates the dilutive impacts, if any, of the Company’s share-based compensation plans. Refer to Note 19. Share-Based Compensation for additional information. Weighted Average Shares The following table illustrates net income per share attributable to Delphi Technologies and the weighted average shares outstanding used in calculating basic and diluted income per share: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions, except per share data) Numerator: Net income attributable to Delphi Technologies $ 27 $ 86 $ 43 $ 184 Denominator: Weighted average ordinary shares outstanding, basic 87.77 88.78 88.11 88.75 Dilutive shares related to restricted stock units (“RSUs”) 0.34 0.27 0.22 0.23 Weighted average ordinary shares outstanding, including dilutive shares 88.11 89.05 88.33 88.98 Net income per share attributable to Delphi Technologies: Basic $ 0.31 $ 0.97 $ 0.49 $ 2.07 Diluted $ 0.31 $ 0.97 $ 0.49 $ 2.07 Anti-dilutive securities share impact — — — — Share Repurchases In July 2018, the Board of Directors approved a $100 million share repurchase authorization, which commenced in September 2018. This authorization was replaced by a new $200 million share repurchase program in January 2019 which was approved by the Board of Directors. Repurchases will be made at management’s discretion from time to time on the open market or through privately negotiated transactions. The repurchase program may be suspended for periods or discontinued at any time. Repurchases under this program will be funded from one or a combination of future free cash flow and existing cash balances. The program is expected to be completed by December 31, 2021. A summary of the ordinary shares repurchased during the three and six months ended June 30, 2019 and 2018 is as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Total number of shares repurchased 845,959 — 1,583,876 — Average price paid per share $ 17.73 $ — $ 18.94 $ — Total (in millions) $ 15 $ — $ 30 $ — All repurchased shares were retired and returned to authorized but unissued shares. The repurchased shares are reflected as a reduction of ordinary share capital for the par value of the shares, with the excess applied as reductions to additional paid-in-capital and retained earnings.

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Changes in Accumulated Other Comprehensive Income	CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The changes in accumulated other comprehensive income (loss) attributable to Delphi Technologies (net of tax) for the three and six months ended June 30, 2019 and 2018 are shown below. Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) Foreign currency translation adjustments: Balance at beginning of period $ (157 ) $ (56 ) $ (165 ) $ (85 ) Aggregate adjustment for the period (1) (13 ) (81 ) (5 ) (52 ) Balance at end of period (170 ) (137 ) (170 ) (137 ) Gains (losses) on derivatives: Balance at beginning of period 14 (1 ) (2 ) — Other comprehensive income before reclassifications (net tax effect of $0, $0, $0 and $0) (7 ) 3 11 2 Reclassification to income (net tax effect of $0, $0, $0 and $0) (2 ) — (4 ) — Balance at end of period 5 2 5 2 Pension and postretirement plans: Balance at beginning of period (211 ) (294 ) (245 ) (286 ) Other comprehensive income before reclassifications (net tax effect of $3, $6, $5 and $4) 8 19 27 6 Reclassification to income (net tax effect of $0, $1, $4 and $2) 1 5 16 10 Balance at end of period (202 ) (270 ) (202 ) (270 ) Accumulated other comprehensive loss, end of period $ (367 ) $ (405 ) $ (367 ) $ (405 ) (1) Includes gains of $5 million and gains of $2 million , for the three and six months ended June 30, 2019 , respectively, related to the foreign currency impact of intra-entity loans that are of a long-term investment nature. Also includes losses of $12 million and $5 million , for the three and six months ended June 30, 2018 , respectively, related to the foreign currency impact of intra-entity loans that are of a long-term investment nature. During the three and six months ended June 30, 2019 there were losses of $5 million and losses of $1 million , respectively, related to non-derivative net investment hedges. During the three and six months ended June 30, 2018 there were losses of less than $1 million and $1 million , respectively, related to non-derivative net investment hedges. Refer to Note 16. Derivatives and Hedging Activities for further description of these hedges. Reclassifications from accumulated other comprehensive income (loss) to income for the six months ended June 30, 2019 and 2018 were as follows: Reclassification Out of Accumulated Other Comprehensive Income (Loss) Details About Accumulated Other Comprehensive Income (Loss) Components Three Months Ended June 30, Six Months Ended June 30, Affected Line Item in the Statement of Operations 2019 2018 2019 2018 (in millions) Pension and postretirement plans: Actuarial losses $ (1 ) $ (6 ) $ (5 ) $ (12 ) Other income (expense), net (1) Curtailment — — (15 ) — Other income (expense), net (1) (1 ) (6 ) (20 ) (12 ) Income before income taxes — 1 4 2 Income tax expense (1 ) (5 ) (16 ) (10 ) Net income — — — — Net income attributable to noncontrolling interest $ (1 ) $ (5 ) $ (16 ) $ (10 ) Net income attributable to Delphi Technologies (1) These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (see Note 10. Pension Benefits for additional details). Refer to Note. 16 Derivatives and Hedging Activities for additional reclassifications from accumulated other comprehensive income (loss) to income.

Derivatives And Hedging Activit

Derivatives And Hedging Activities	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	DERIVATIVES AND HEDGING ACTIVITIES Cash Flow Hedges Delphi Technologies is exposed to market risk, such as fluctuations in foreign currency exchange rates, commodity prices and changes in interest rates, which may result in cash flow risks. To manage the volatility relating to these exposures, Delphi Technologies aggregates the exposures on a consolidated basis to take advantage of natural offsets. For exposures that are not offset within its operations, Delphi Technologies enters into various derivative transactions pursuant to its risk management policies, which prohibit holding or issuing derivative financial instruments for speculative purposes, and designation of derivative instruments is performed on a transaction basis to support hedge accounting. The changes in fair value of these hedging instruments are offset in part or in whole by corresponding changes in the fair value or cash flows of the underlying exposures being hedged. Delphi Technologies assesses the initial and ongoing effectiveness of its hedging relationships in accordance with its documented policy. In December 2018, the Company entered into interest rate swap agreements, designated as cash flow hedges, with a combined notional amount of $400 million where the variable rates under the Term Loan A Facility have been exchanged for a fixed rate. These interest rate swap agreements mature in September 2022 and convert the nature of $400 million of the loan from LIBOR floating-rate debt to fixed-rate debt. As of June 30, 2019 , the Company had the following outstanding notional amounts related to foreign currency forward contracts designated as cash flow hedges that were entered into to hedge forecasted exposures: Foreign Currency Quantity Unit of Notional Amount (in millions) Chinese Yuan 814 RMB $ 120 Euro 88 EUR 100 Mexican Peso 966 MXN 50 Singapore Dollar 47 SGD 30 Polish Zloty 104 PLN 30 Turkish Lira 114 TRY 20 As of June 30, 2019 , Delphi Technologies has entered into derivative instruments to hedge cash flows extending out to September 2022. Gains and losses on derivatives qualifying as cash flow hedges are recorded in accumulated other comprehensive income (“OCI”), to the extent that hedges are effective, until the underlying transactions are recognized in earnings. Unrealized amounts in accumulated OCI will fluctuate based on changes in the fair value of hedge derivative contracts at each reporting period. Net losses on cash flow hedges included in accumulated OCI as of June 30, 2019 were approximately $6 million (approximately $6 million , net of tax). Of this total, approximately $1 million of gains are expected to be included in cost of sales and interest expense within the next 12 months and $7 million of losses are expected to be included in cost of sales and interest expense in subsequent periods. Cash flow hedges are discontinued when Delphi Technologies determines it is no longer probable that the originally forecasted transactions will occur. Cash flows from derivatives used to manage foreign exchange and interest rate risks are classified as operating activities within the consolidated statement of cash flows. Net Investment Hedges The Company is also exposed to the risk that adverse changes in foreign currency exchange rates could impact its net investment in non-U.S. subsidiaries. To manage this risk, the Company designated a qualifying non-derivative instrument, foreign currency-denominated debt, as a net investment hedge of certain non-U.S. subsidiaries. The gains or losses on instruments designated as net investment hedges are recognized within OCI to offset changes in the value of the net investment in these foreign currency-denominated operations. Gains and losses reported in accumulated other comprehensive income (loss) are reclassified to earnings only when the related currency translation adjustments are required to be reclassified, usually upon sale or liquidation of the investment. In December 2018 and March 2019, as a means of managing foreign currency risk related to our significant operations in Europe, the Company executed fixed-for-fixed cross currency swaps, in which the Company will pay Euros and receive U.S. dollars with a combined notional amount of $600 million . These agreements are designated as net investment hedges and have a maturity date of September 2022. Derivatives Not Designated as Hedges On certain occasions the Company enters into certain foreign currency contracts that are not designated as hedges. When hedge accounting is not applied to derivative contracts, gains and losses are recorded to other income (expense), net and cost of sales in the consolidated statement of operations. Fair Value of Derivative Instruments in the Balance Sheet The following table includes the fair value of derivative instruments recorded in the consolidated balance sheets as of June 30, 2019 and December 31, 2018 : Asset Derivatives Liability Derivatives Balance Sheet Location* June 30, December 31, Balance Sheet Location* June 30, December 31, (in millions) Designated as cash flow hedges: Foreign currency derivatives Other current assets $ 5 $ 5 Other current assets $ — $ 1 Foreign currency derivatives Other long-term assets 1 — Other long-term assets — — Interest rate swaps Other long-term liabilities — — Other long-term liabilities 12 3 Designated as net investment hedges: Cross-currency swaps Other long-term assets 4 — Other long-term assets — — Cross-currency swaps Other long-term liabilities 7 — Other long-term liabilities — 3 Total designated as hedges $ 17 $ 5 $ 12 $ 7 Derivatives not designated as hedges: Foreign currency derivatives Other current assets $ 1 $ — Other current assets $ — $ — Total not designated as hedges $ 1 $ — $ — $ — * Derivative instruments are subject to master netting arrangements and are presented on a net basis in the consolidated balance sheets in accordance with accounting guidance related to the offsetting of amounts related to certain contracts. The fair value of Delphi Technologies’ derivative financial instruments was in a net asset position as of June 30, 2019 and a net liability position as of December 31, 2018 . Effect of Derivatives on the Statement of Operations and Statement of Comprehensive Income The pre-tax effect of the derivative financial instruments in the consolidated statement of operations and consolidated statement of comprehensive income for the three and six months ended June 30, 2019 and 2018 is as follows: Three Months Ended June 30, 2019 Gain (Loss) Recognized in OCI Gain Reclassified from OCI into Income (in millions) Derivatives designated as cash flow hedges: Foreign currency derivatives $ 4 $ 2 Interest rate swaps (9 ) — Derivatives designated as net investment hedges: Cross-currency swaps (2 ) — Total $ (7 ) $ 2 Gain Recognized in Income (in millions) Derivatives not designated $ 2 Total $ 2 Three Months Ended June 30, 2018 Gain Recognized in OCI Gain Reclassified from OCI into Income (in millions) Derivatives designated as cash flow hedges: Foreign currency derivatives $ 3 $ — Total $ 3 $ — Loss Recognized in Income (in millions) Derivatives not designated $ 4 Total $ 4 Six Months Ended June 30, 2019 Gain (Loss) Recognized in OCI Gain Reclassified from OCI into Income (in millions) Derivatives designated as cash flow hedges: Foreign currency derivatives $ 6 $ 4 Interest rate swaps (9 ) — Derivatives designated as net investment hedges: Cross-currency swaps 14 — Total $ 11 $ 4 Loss Recognized in Income (in millions) Derivatives not designated $ — Total $ — Six Months Ended June 30, 2018 Gain Recognized in OCI Gain Reclassified from OCI into Income (in millions) Derivatives designated as cash flow hedges: Foreign currency derivatives $ 2 $ — Total $ 2 $ — Loss Recognized in Income (in millions) Derivatives not designated $ 8 Total $ 8 The gain or loss recognized into income for designated derivative instruments were recorded to cost of sales in the consolidated statements of operations for the periods presented above. The gain or loss recognized into income for derivative instruments not designated were recorded to other income, net and cost of sales in the consolidated statements of operations for the periods presented above.

Fair Value of Financial Instrum

Fair Value of Financial Instrument	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	FAIR VALUE OF FINANCIAL INSTRUMENTS Fair Value Measurements on a Recurring Basis Derivative instruments —All derivative instruments are required to be reported on the balance sheet at fair value unless the transactions qualify and are designated as normal purchases or sales. Changes in fair value are reported currently through earnings unless they meet hedge accounting criteria. Delphi Technologies’ derivative exposures are with counterparties with long-term investment grade credit ratings. Delphi Technologies estimates the fair value of its derivative contracts using an income approach based on valuation techniques to convert future amounts to a single, discounted amount. Estimates of the fair value of foreign currency derivative instruments, interest rate swaps and cross-currency swaps are determined using exchange traded prices and rates. Delphi Technologies also considers the risk of non-performance in the estimation of fair value, and includes an adjustment for non-performance risk in the measure of fair value of derivative instruments. The non-performance risk adjustment reflects the credit default spread (“CDS”) applied to the foreign currency exposures by counterparty. When Delphi Technologies is in a net derivative asset position, the counterparty CDS rates are applied to the net derivative asset position. When Delphi Technologies is in a net derivative liability position, estimates of peer companies’ CDS rates are applied to the net derivative liability position. In certain instances where market data is not available, Delphi Technologies uses management judgment to develop assumptions that are used to determine fair value. This could include situations of market illiquidity for a particular currency or commodity or where observable market data may be limited. In those situations, Delphi Technologies generally surveys investment banks and/or brokers and utilizes the surveyed prices and rates in estimating fair value. As of June 30, 2019 Delphi Technologies was in a net derivative asset position of $6 million . As of December 31, 2018 Delphi Technologies was in a net derivative liability position of $2 million . No significant adjustments were recorded for nonperformance risk based on the application of peer companies’ CDS rates, evaluation of our own nonperformance risk and because Delphi Technologies’ exposures were to counterparties with investment grade credit ratings. Refer to Note 16. Derivatives and Hedging Activities for further information regarding derivatives. As of June 30, 2019 and December 31, 2018 Delphi Technologies had the following derivative assets measured at fair value on a recurring basis: Total Quoted Prices in Active Markets Significant Other Observable Inputs Significant Unobservable Inputs (in millions) As of June 30, 2019: Foreign currency derivatives $ 7 $ — $ 7 $ — Cross-currency swaps* 4 — 4 — Total $ 11 $ — $ 11 $ — As of December 31, 2018: Foreign currency derivatives $ 4 $ — $ 4 $ — Total $ 4 $ — $ 4 $ — * Derivative instruments are subject to master netting arrangements and are presented on a net basis in the consolidated balance sheets in accordance with accounting guidance related to the offsetting of amounts related to certain contracts. As of June 30, 2019 and December 31, 2018 Delphi Technologies had the following derivative liabilities measured at fair value on a recurring basis: Total Quoted Prices in Active Markets Significant Other Observable Inputs Significant Unobservable Inputs (in millions) As of June 30, 2019: Interest rate swaps* $ 12 $ — $ 12 $ — Cross-currency swaps* (7 ) — (7 ) — Total $ 5 $ — $ 5 $ — As of December 31, 2018: Interest rate swaps* $ 3 $ — $ 3 $ — Cross-currency swaps* 3 — 3 — Total $ 6 $ — $ 6 $ — * Derivative instruments are subject to master netting arrangements and are presented on a net basis in the consolidated balance sheets in accordance with accounting guidance related to the offsetting of amounts related to certain contracts. Non-derivative financial instruments —Delphi Technologies’ non-derivative financial instruments include cash and cash equivalents, accounts and notes receivable, accounts payable, as well as debt, which consists of finance lease liabilities, the Senior Notes, the Term Loan A Facility and other debt issued by Delphi Technologies’ non-U.S. subsidiaries. The fair value of debt is based on quoted market prices for instruments with public market data or significant other observable inputs for instruments without a quoted public market price (Level 2). As of June 30, 2019 and December 31, 2018 , total debt was recorded at $1,514 million and $1,531 million , respectively, and had estimated fair values of $1,433 million and $1,415 million , respectively. For all other financial instruments recorded at June 30, 2019 and December 31, 2018 , fair value approximates book value. Fair Value Measurements on a Nonrecurring Basis In addition to items that are measured at fair value on a recurring basis, Delphi Technologies also has items in its balance sheet that are measured at fair value on a nonrecurring basis. As these items are not measured at fair value on a recurring basis, they are not included in the tables above. Nonfinancial assets and liabilities that are measured at fair value on a nonrecurring basis include certain long-lived assets, equity method investments, other equity investments, intangible assets, asset retirement obligations, share-based compensation and liabilities for exit or disposal activities measured at fair value upon initial recognition. During the three and six months ended June 30, 2019 , Delphi Technologies recorded non-cash asset impairment charges totaling $5 million and $8 million , respectively, within selling, general and administrative and amortization related to certain fixed assets and intangible assets. During the three and six months ended June 30, 2018 , Delphi Technologies recorded non-cash asset impairment charges totaling $1 million and $1 million , respectively, within cost of sales related to declines in the fair values of certain intangible assets and fixed assets. Fair value of long-lived assets is determined primarily using the anticipated cash flows discounted at a rate commensurate with the risk involved and a review of appraisals. As such, Delphi Technologies has determined that the fair value measurements of long-lived assets fall in Level 3 of the fair value hierarchy.

Other Income, Net

Other Income, Net	6 Months Ended
	Jun. 30, 2019
Other Income and Expenses [Abstract]
Other Income, Net	OTHER INCOME, NET Other income (expense), net included: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) Interest income $ 2 $ 2 $ 4 $ 3 Components of net periodic benefit cost other than service cost (Note 10) 5 (2 ) (9 ) (3 ) Other, net 1 4 1 10 Other income (expense), net $ 8 $ 4 $ (4 ) $ 10

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Share-Based Compensation	SHARE-BASED COMPENSATION Long Term Incentive Plan The Delphi Technologies PLC Long-Term Incentive Plan (the “PLC LTIP”) allows for the grant of share-based awards (up to 7,500,000 ordinary shares) for long-term compensation to the employees, directors, consultants and advisors of the Company. The awards can be in the form of shares, options, stock appreciation rights, restricted stock, restricted stock units (“RSUs”), performance awards, and other share-based awards. Board of Director Awards On April 26, 2018, Delphi Technologies granted 34,756 RSUs to the Board of Directors at a grant date fair value of approximately $2 million . The RSUs vested on April 24, 2019, and 33,944 ordinary shares, which included shares issued in connection with dividend equivalents, were issued to members of the Board of Directors at a fair value of approximately $1 million . On April 25, 2019, Delphi Technologies granted 70,924 RSUs to the Board of Directors at a grant date fair value of approximately $2 million . The RSUs will vest on April 22, 2020, the day before the 2020 annual meeting of shareholders. Executive Awards The executive RSU awards include a time-based vesting portion and a performance-based vesting portion, as well as continuity awards in certain years. The time-based RSUs, which make up 33% of the awards for the Company’s senior management and 50% for other executives, vest ratably over three years beginning on the first anniversary of the grant date. The performance-based RSUs, which make up 67% of the awards for the Company’s senior management and 50% for other executives, vest at the completion of a three-year performance period if certain targets are met. Each executive will receive between 0% and 200% of his or her target performance-based award based on the Company’s performance against established company-wide performance metrics. The details of the executive grant are as follows: Grant Date RSUs Granted Grant Date Fair Value Time-Based Award Vesting Dates Performance-Based Award Vesting Date (in millions) February 2019 1.0 $27 Annually on the anniversary grant date, 2020-2022 December 31, 2021 February 2018 0.3 $16 Annually on the anniversary grant date, 2019-2021 December 31, 2020 The grant date fair value of the RSUs is determined based on the target number of awards issued, the closing price of the Company’s ordinary shares on the date of the grant of the award, including an estimate for forfeitures, and a contemporaneous valuation performed by an independent valuation specialist with respect to the relative total shareholder return awards. A summary of activity, including award grants, vesting and forfeitures for Delphi Technologies employees is provided below. RSUs Weighted Average Grant Date Fair Value (in thousands) Nonvested, January 1, 2019 679 $ 42.70 Granted 1,210 24.87 Vested (172 ) 43.41 Forfeited (46 ) 32.83 Nonvested, June 30, 2019 1,671 28.47 During the six months ended ended June 30, 2019 , the Company entered into an individual one-time award of non-qualified stock options to purchase ordinary shares of the Company, which options had a grant date fair value of $3 million based on a contemporaneous valuation performed by an independent valuation specialist. The options become exercisable in equal parts annually over a 5-year period commencing on the first anniversary of the grant. The options will be exercisable, subject to vesting, for a period of 10 years after the grant date. Share-based compensation expense recorded within the consolidated statement of operations was $5 million ( $5 million , net of tax) and $9 million ( $9 million , net of tax) based on the Company’s best estimate of ultimate performance against the respective targets during the three and six months ended June 30, 2019 , respectively. Share-based compensation expense recorded within the consolidated statement of operations was $5 million ( $5 million , net of tax) and $10 million ( $10 million , net of tax) based on the Company’s best estimate of ultimate performance against the respective targets during the three and six months ended June 30, 2018 , respectively. The Company will continue to recognize compensation expense, based on the grant date fair value of the awards applied to the Company’s best estimate of ultimate performance against the respective targets, over the requisite vesting periods of the awards. Based on the grant date fair value of the awards and the Company’s best estimate of ultimate performance against the respective targets as of June 30, 2019 , unrecognized compensation expense on a pretax basis of approximately $33 million is anticipated to be recognized over a weighted average period of approximately 2

Segment Reporting

Segment Reporting	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Reporting	SEGMENT REPORTING Delphi Technologies operates its core business along the following operating segments, which are grouped on the basis of similar product, market and operating factors: • Powertrain Systems, which manufactures high quality components and complete engine management systems to help optimize performance, emissions and fuel economy. The products include fuel injection systems as well as various other powertrain products including valvetrain, fuel delivery modules, ignition coils, canisters, sensors, valves and actuators. This segment also offers electronic control modules and corresponding software, algorithms and calibration that provide centralized and reliable management of various powertrain components. Additionally, we provide power electronics solutions that include supervisory controllers and software, along with DC/DC converters inverters and on-board chargers that convert electricity to enable hybrid and electric vehicle propulsion systems. • Aftermarket, which sells aftermarket products to independent aftermarket and original equipment service customers. This segment also supplies a wide range of aftermarket products and services covering the fuel injection, electronics and engine management, maintenance, and test equipment and vehicle diagnostics categories. • Eliminations and Other, which includes the elimination of inter-segment transactions. The accounting policies of the segments are the same as those of the consolidated Company, except that the disaggregated financial results for the segments have been prepared using a management approach, which is consistent with the basis and manner in which management internally disaggregates financial information for which Delphi Technologies’ chief operating decision maker regularly reviews financial results to assess performance of, and make internal operating decisions about allocating resources to the segments. Generally, Delphi Technologies evaluates segment performance based on stand-alone segment net income before interest expense, other income (expense), net, income tax expense, equity income, net of tax, restructuring, separation costs, asset impairments and pension charges (“Adjusted Operating Income”) and accounts for inter-segment sales and transfers as if the sales or transfers were to third parties, at current market prices. Delphi Technologies’ management utilizes Adjusted Operating Income as the key performance measure of segment income or loss to evaluate segment performance, and for planning and forecasting purposes to allocate resources to the segments, as management believes this measure is most reflective of the operational profitability or loss of Delphi Technologies’ operating segments. Consolidated Adjusted Operating Income should not be considered a substitute for results prepared in accordance with U.S. GAAP and should not be considered an alternative to net income attributable to Delphi Technologies, which is the most directly comparable financial measure to Adjusted Operating Income that is prepared in accordance with U.S. GAAP. Adjusted Operating Income, as determined and measured by Delphi Technologies, should also not be compared to similarly titled measures reported by other companies. Included below are sales and operating data for the Company’s segments for the three and six months ended June 30, 2019 and 2018 . Powertrain Systems Aftermarket Eliminations Total (in millions) For the Three Months Ended June 30, 2019: Net sales $ 971 $ 214 $ (64 ) $ 1,121 Depreciation & amortization $ 55 $ 2 $ — $ 57 Adjusted operating income $ 64 $ 17 $ — $ 81 Operating income $ 43 $ 13 $ — $ 56 Equity loss, net of tax $ (1 ) $ — $ — $ (1 ) Net income attributable to noncontrolling interest $ 4 $ — $ — $ 4 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Three Months Ended June 30, 2018: Net sales $ 1,086 $ 215 $ (69 ) $ 1,232 Depreciation & amortization $ 47 $ 1 $ — $ 48 Adjusted operating income $ 134 $ 22 $ — $ 156 Operating income $ 105 $ 17 $ — $ 122 Equity income, net of tax $ 3 $ — $ — $ 3 Net income attributable to noncontrolling interest $ 4 $ — $ — $ 4 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Six Months Ended June 30, 2019: Net sales $ 1,991 $ 407 $ (126 ) $ 2,272 Depreciation & amortization $ 107 $ 3 $ — $ 110 Adjusted operating income $ 140 $ 28 $ — $ 168 Operating income $ 90 $ 21 $ — $ 111 Equity income, net of tax $ 1 $ — — $ — $ 1 Net income attributable to noncontrolling interest $ 7 $ — $ — $ 7 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Six Months Ended June 30, 2018: Net sales $ 2,239 $ 432 $ (143 ) $ 2,528 Depreciation & amortization $ 96 $ 2 $ — $ 98 Adjusted operating income $ 276 $ 39 $ — $ 315 Operating income $ 228 $ 32 $ — $ 260 Equity income, net of tax $ 6 $ — $ — $ 6 Net income attributable to noncontrolling interest $ 11 $ — $ — $ 11 (1) Eliminations and Other includes the elimination of inter-segment transactions. The reconciliation of Adjusted Operating Income to Operating Income includes, as applicable, restructuring, separation costs, and asset impairments. The reconciliation of Adjusted Operating Income to net income attributable to Delphi Technologies for the three and six months ended June 30, 2019 and 2018 are as follows: Powertrain Systems Aftermarket Eliminations Total (in millions) For the Three Months Ended June 30, 2019: Adjusted operating income $ 64 $ 17 $ — $ 81 Restructuring (4 ) (1 ) — (5 ) Separation costs (1) (11 ) (2 ) — (13 ) Asset impairments (4 ) (1 ) — (5 ) Pension charges (2) (2 ) — — (2 ) Operating income $ 43 $ 13 $ — 56 Interest expense (18 ) Other income, net 8 Income before income taxes and equity income 46 Income tax expense (14 ) Equity loss, net of tax (1 ) Net income 31 Net income attributable to noncontrolling interest 4 Net income attributable to Delphi Technologies $ 27 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Three Months Ended June 30, 2018: Adjusted operating income $ 134 $ 22 $ — $ 156 Restructuring (11 ) (1 ) — (12 ) Separation costs (1) (17 ) (4 ) — (21 ) Asset impairments (1 ) — — (1 ) Operating income $ 105 $ 17 $ — 122 Interest expense (19 ) Other income, net 4 Income before income taxes and equity income 107 Income tax expense (20 ) Equity income, net of tax 3 Net income 90 Net income attributable to noncontrolling interest 4 Net income attributable to Delphi Technologies $ 86 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Six Months Ended June 30, 2019: Adjusted operating income $ 140 $ 28 $ — $ 168 Restructuring (7 ) (1 ) — (8 ) Separation costs (1) (27 ) (4 ) — (31 ) Asset impairments (7 ) (1 ) — (8 ) Pension charges (2) (9 ) (1 ) — (10 ) Operating income $ 90 $ 21 $ — 111 Interest expense (36 ) Other expense, net (4 ) Income before income taxes and equity income 71 Income tax expense (22 ) Equity income, net of tax 1 Net income 50 Net income attributable to noncontrolling interest 7 Net income attributable to Delphi Technologies $ 43 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Six Months Ended June 30, 2018: Adjusted operating income $ 276 $ 39 $ — $ 315 Restructuring (22 ) (1 ) — (23 ) Separation costs (1) (25 ) (6 ) — (31 ) Asset impairments (1 ) — — (1 ) Operating income $ 228 $ 32 $ — 260 Interest expense (39 ) Other income, net 10 Income before income taxes and equity income 231 Income tax expense (42 ) Equity income, net of tax 6 Net income 195 Net income attributable to noncontrolling interest 11 Net income attributable to Delphi Technologies $ 184 (1) Separation costs include one-time incremental expenses associated with becoming a stand-alone publicly-traded company. (2) Pension charges include additional contributions to defined contribution plans, other payments to impacted employees and other related expenses resulting from the freeze of future accruals for nearly all U.K. defined benefit pension plans. The Company’s chief operating decision maker recently announced changes to the Company’s organization structure, effective July 2019. As a result of these changes, it is expected that the Company’s chief operating decision maker will make changes to how he assesses the performance of the business and allocates resources. Therefore, the Company anticipates this will result in a change to its operating segments by the filing of the Company’s Form 10-K for the year ended December 31, 2019. As of June 30, 2019 the Company’s chief operating decision maker continues to assess the performance of the business and allocate resources using the operating segments noted above.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation The unaudited consolidated financial statements included herein have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete annual financial statements. These financial statements include all adjustments, which consist of normal recurring items, necessary for a fair presentation. The operating results for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the full year. These financial statements should be read in conjunction with the Delphi Technologies 2018 Annual Report on Form 10-K.
Net Income Per Share, Policy	SHAREHOLDERS’ EQUITY AND NET INCOME PER SHARE Net Income Per Share Basic net income per share is computed by dividing net income attributable to Delphi Technologies by the weighted average number of ordinary shares outstanding during the period. Diluted net income per share reflects the weighted average dilutive impact of all potentially dilutive securities from the date of issuance and is computed using the treasury stock method by dividing net income attributable to Delphi Technologies by the diluted weighted average number of ordinary shares outstanding. For all periods presented the calculation of net income per share contemplates the dilutive impacts, if any, of the Company’s share-based compensation plans. Refer to Note 19. Share-Based Compensation for additional information.
Lessee, Leases [Policy Text Block]	The Company has applied the practical expedients in ASC 842 related to not separating lease and nonlease components of contracts, both when the Company is a lessee and lessor. In addition, the Company elected the package of practical expedients, related to existing leases at the time of adoption, that allowed the Company to carry forward the accounting assessments for: i) whether contracts are or contain leases, ii) the lease classification and iii) the initial direct costs. Delphi Technologies also elected the practical expedient related to existing land easements, that allowed the Company to carry forward the accounting treatment for land easements in existing agreements. The Company uses an estimated incremental borrowing rate, which is derived from information available at lease commencement, in determining the present value of lease payments. When calculating the incremental borrowing rates, the Company gives consideration to the applicable margin based on our corporate credit ratings, as defined by the Credit Agreement, as well as publicly available data by country for instruments with similar characteristics. The adoption of this guidance resulted in the recognition of operating lease right-of-use assets and operating lease liabilities of approximately $117 million and $120 million , respectively, on the Company’s consolidated balance sheet as of June 30, 2019 . The adoption did not have a material impact on its consolidated statements of operations or cash flows. Refer to Note 6. Leases for additional information.
Recently Issued Accounting Pronouncements, Policy	Recently adopted accounting pronouncements —In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) . The Company adopted Accounting Standards Codification (“ASC”) 842 as of January 1, 2019 using the optional modified retrospective transition method and did not recast the comparative periods. ASC 842 requires lessees to recognize a lease liability and a right-of-use asset on the balance sheet for all leases, with the exception of short-term leases. For leases that meet the definition of a short-term lease, the Company has elected to apply the short-term lease exemption, and accordingly, they are not recorded on the balance sheet. The Company has applied the practical expedients in ASC 842 related to not separating lease and nonlease components of contracts, both when the Company is a lessee and lessor. In addition, the Company elected the package of practical expedients, related to existing leases at the time of adoption, that allowed the Company to carry forward the accounting assessments for: i) whether contracts are or contain leases, ii) the lease classification and iii) the initial direct costs. Delphi Technologies also elected the practical expedient related to existing land easements, that allowed the Company to carry forward the accounting treatment for land easements in existing agreements. The Company uses an estimated incremental borrowing rate, which is derived from information available at lease commencement, in determining the present value of lease payments. When calculating the incremental borrowing rates, the Company gives consideration to the applicable margin based on our corporate credit ratings, as defined by the Credit Agreement, as well as publicly available data by country for instruments with similar characteristics. The adoption of this guidance resulted in the recognition of operating lease right-of-use assets and operating lease liabilities of approximately $117 million and $120 million , respectively, on the Company’s consolidated balance sheet as of June 30, 2019 . The adoption did not have a material impact on its consolidated statements of operations or cash flows. Refer to Note 6. Leases for additional information. Delphi Technologies adopted ASU 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting in the first quarter of 2019 . This guidance expands the scope of ASC Topic 718, which previously only included share-based payments to employees, to include share-based payments issued to nonemployees for goods or services. Consequently, the accounting for share-based payments to nonemployees and employees is now substantially aligned. The adoption of this guidance did not have a material impact on the Company’s consolidated financial statements.
Pensions, Policy	The Company sponsors defined benefit pension plans for certain employees and retirees outside of the U.S. Using appropriate actuarial methods and assumptions, the Company’s defined benefit pension plans are accounted for in accordance with FASB ASC Topic 715, Compensation—Retirement Benefits. The Company’s primary non-U.S. plans are located in the United Kingdom (“U.K.”), France and Mexico. The U.K. and certain Mexican plans are funded. In addition, the Company has defined benefit plans in South Korea, Turkey and Italy for which amounts are payable to employees immediately upon separation. The obligations for these plans are recorded over the requisite service period. Delphi Technologies does not have any U.S. pension assets or liabilities
Segment Reporting, Policy [Policy Text Block]	The accounting policies of the segments are the same as those of the consolidated Company, except that the disaggregated financial results for the segments have been prepared using a management approach, which is consistent with the basis and manner in which management internally disaggregates financial information for which Delphi Technologies’ chief operating decision maker regularly reviews financial results to assess performance of, and make internal operating decisions about allocating resources to the segments.

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Schedule of Inventory	A summary of inventories is shown below: June 30, December 31, (in millions) Productive material $ 250 $ 250 Work-in-process 48 36 Finished goods 255 235 Total $ 553 $ 521

Assets (Tables)

Assets (Tables)	6 Months Ended
	Jun. 30, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Current Assets	Other current assets consisted of the following: June 30, December 31, (in millions) Value added tax receivable $ 98 $ 98 Reimbursable engineering costs 19 17 Prepaid insurance and other expenses 19 14 Income and other taxes receivable 18 16 Notes receivable 10 15 Derivative financial instruments (Note 16) 6 4 Return assets (Note 12) 5 7 Other 3 1 Total $ 178 $ 172
Schedule of Other Assets, Noncurrent	Other long-term assets consisted of the following: June 30, December 31, (in millions) Operating lease assets (Note 6) $ 117 $ — Income and other taxes receivable 41 53 Investment in Tula Technology, Inc. 21 21 Investment in PolyCharge America, Inc. 7 7 Derivative financial instruments (Note 16) 5 — Debt issuance costs 3 3 Reimbursable engineering costs 3 — Other 39 33 Total $ 236 $ 117

Liabilities (Tables)

Liabilities (Tables)	6 Months Ended
	Jun. 30, 2019
Other Liabilities Disclosure [Abstract]
Schedule of Accrued Liabilities	Accrued liabilities consisted of the following: June 30, December 31, (in millions) Income and other taxes payable $ 62 $ 63 Warranty obligations (Note 7) 60 68 Payroll-related obligations 50 45 Restructuring (Note 8) 42 46 Deferred reimbursable engineering 37 31 Accrued rebates 27 29 Operating lease liabilities (Note 6) 21 — Freight 17 20 Employee benefits 13 16 Outside services 12 13 Accrued interest 10 12 Deferred cost reimbursement 7 5 Customer deposits 6 5 Other 79 75 Total $ 443 $ 428
Other Noncurrent Liabilities	Other long-term liabilities consisted of the following: June 30, December 31, (in millions) Operating lease liabilities (Note 6) $ 99 $ — Accrued income taxes 46 46 Warranty obligations (Note 7) 25 28 Deferred income taxes 15 14 Restructuring (Note 8) 11 19 Derivative financial instruments (Note 16) 5 6 Environmental (Note 11) 2 2 Other 3 8 Total $ 206 $ 123

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
ScheduleOfLeaseRelatedAssetsandLiabilities [Table Text Block]	The table below presents the weighted-average remaining lease term and discount rate as of June 30, 2019 : Weighted-average remaining lease term (in years): Operating leases 6.68 Finance leases 8.60 Weighted-average discount rate: Operating leases 6.10 % Finance leases 4.11 % The table below presents supplemental balance sheet information related to leases as of June 30, 2019 : June 30, 2019 (in millions) Assets Balance Sheet Location Operating lease assets Other long-term assets (Note 4) $ 117 Finance lease assets Property, net 14 Total lease assets $ 131 Liabilities Current Operating leases Accrued liabilities (Note 5) $ 21 Finance leases Short-term debt (Note 9) 2 Long-term Operating leases Other long-term liabilities (Note 5) 99 Finance leases Long-term debt (Note 9) 13 Total lease liabilities $ 135
Lease, Cost [Table Text Block]	The table below presents the components of lease costs for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 (in millions) Finance lease cost - amortization of lease assets (1) $ — $ 1 Operating lease cost (2) 10 18 Total lease cost $ 10 $ 19 (1) Includes interest on finance lease liabilities, which was not material. (2) Includes short-term leases and variable lease costs, which were not material.
Schedule Of Leases, Supplemental Cash Flows [Table Text Block]	The table below presents supplemental cash flow information related to leases during the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 (in millions) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases (1) $ 7 $ 14 (1) Operating and financing cash flows for finance leases were not material for the three and six months ended ended June 30, 2019 .
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	The table below reconciles the undiscounted future minimum lease payments to the lease liabilities recorded on the balance sheet as of June 30, 2019 : Operating Leases Finance Leases Total (in millions) Remainder of 2019 $ 13 $ 1 $ 14 2020 26 2 28 2021 24 2 26 2022 20 2 22 2023 14 2 16 Thereafter 49 9 58 Total future minimum lease payments 146 18 164 Less: amount of lease payments representing interest (26 ) (3 ) (29 ) Total lease liabilities $ 120 $ 15 $ 135

Warranty Obligations (Tables)

Warranty Obligations (Tables)	6 Months Ended
	Jun. 30, 2019
Product Warranties Disclosures [Abstract]
Schedule of Product Warranty Liability	The table below summarizes the activity in the product warranty liability for the six months ended June 30, 2019 : Warranty Obligations (in millions) Accrual balance at beginning of period $ 96 Provision for estimated warranties incurred during the period 19 Changes in estimate for pre-existing warranties — Settlements made during the period (in cash or in kind) (30 ) Foreign currency translation and other — Accrual balance at end of period $ 85

Restructuring (Tables)

Restructuring (Tables)	6 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Related Costs	The following table summarizes the restructuring charges recorded for the three and six months ended June 30, 2019 and 2018 by operating segment: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) Powertrain Systems $ 4 $ 11 $ 7 $ 22 Aftermarket 1 1 1 1 Total $ 5 $ 12 $ 8 $ 23
Schedule of Restructuring Reserve by Type of Cost	The table below summarizes the activity in the restructuring liability for the six months ended June 30, 2019 : Employee Termination Benefits Liability Other Exit Costs Liability Total (in millions) Accrual balance at December 31, 2018 $ 64 $ 1 $ 65 Provision for estimated expenses during the period 8 — 8 Payments made during the period (19 ) — (19 ) Foreign currency and other (1 ) — (1 ) Accrual balance at June 30, 2019 $ 52 $ 1 $ 53

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Instrument [Line Items]
Schedule of Long-term Debt Instruments	The following is a summary of debt outstanding, net of unamortized issuance costs and discounts, as of June 30, 2019 and December 31, 2018 , respectively: June 30, 2019 December 31, 2018 (in millions) $750 million Term Loan A Facility, due 2022 (net of $3 and $4 unamortized issuance costs) $ 709 $ 727 $800 million Senior Notes at 5.00%, due 2025 (net of $11 and $12 unamortized issuance costs and $3 and $3 discount, respectively) 786 785 Finance lease liabilities and other 19 19 Total debt 1,514 1,531 Less: current portion (39 ) (43 ) Long-term debt $ 1,475 $ 1,488

Pension Benefits (Tables)

Pension Benefits (Tables)	6 Months Ended
	Jun. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Schedule of Net Benefit Costs	The amounts shown below reflect the non-U.S. plans’ defined benefit pension expense for the three and six months ended June 30, 2019 and 2018 : Three Months Ended June 30, 2019 2018 (in millions) Service cost $ 2 $ 9 Interest cost 9 9 Expected return on plan assets (15 ) (13 ) Amortization of actuarial losses 1 6 Net periodic benefit cost $ (3 ) $ 11 Six Months Ended June 30, 2019 2018 (in millions) Service cost $ 9 $ 19 Interest cost 18 18 Expected return on plan assets (29 ) (27 ) Curtailment loss 15 — Amortization of actuarial losses 5 12 Net periodic benefit cost $ 18 $ 22

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) North America $ 314 $ 349 $ 652 $ 705 Europe 520 549 1,062 1,115 Asia Pacific 254 300 490 639 South America 33 34 68 69 Total $ 1,121 $ 1,232 $ 2,272 $ 2,528	The Powertrain Systems segment primarily serves OEMs along with certain Tier 1 suppliers (one that supplies vehicle components directly to manufacturers) and the Aftermarket segment serves independent aftermarket customers and original equipment service customers. In the following table, net sales is disaggregated by major product group, sales channels and type of customer: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) Sales to OEMs and Tier 1 customers: Internal combustion engine products $ 705 $ 749 $ 1,427 $ 1,544 Electronics & electrification products 202 268 438 552 Total sales to OEMs and Tier 1 customers (Powertrain Systems segment) 907 1,017 1,865 2,096 Sales to independent aftermarket customers 159 159 300 314 Sales to original equipment service customers 55 56 107 118 Total sales to aftermarket customers (Aftermarket segment) $ 214 $ 215 $ 407 $ 432 Total $ 1,121 $ 1,232 $ 2,272 $ 2,528

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Schedule of Income Tax Expense (Benefit) and Effective Tax Rate	The Company’s income tax expense and effective tax rate for the six months ended June 30, 2019 and 2018 were as follows: Six Months Ended June 30, 2019 2018 Income tax expense $ 22 $ 42 Effective tax rate 31 % 18 %

Shareholders' Equity And Net _2

Shareholders' Equity And Net Income Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
Shareholders' Equity and Net Income Per Share Note [Abstract]
Schedule of Weighted Average Number of Shares	The following table illustrates net income per share attributable to Delphi Technologies and the weighted average shares outstanding used in calculating basic and diluted income per share: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions, except per share data) Numerator: Net income attributable to Delphi Technologies $ 27 $ 86 $ 43 $ 184 Denominator: Weighted average ordinary shares outstanding, basic 87.77 88.78 88.11 88.75 Dilutive shares related to restricted stock units (“RSUs”) 0.34 0.27 0.22 0.23 Weighted average ordinary shares outstanding, including dilutive shares 88.11 89.05 88.33 88.98 Net income per share attributable to Delphi Technologies: Basic $ 0.31 $ 0.97 $ 0.49 $ 2.07 Diluted $ 0.31 $ 0.97 $ 0.49 $ 2.07 Anti-dilutive securities share impact — — — —
Schedule of Share Repurchases [Abstract]
Share Repurchases [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Total number of shares repurchased 845,959 — 1,583,876 — Average price paid per share $ 17.73 $ — $ 18.94 $ — Total (in millions) $ 15 $ — $ 30 $ —

Changes in Accumulated Other _2

Changes in Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Accumulated Other Comprehensive Income	The changes in accumulated other comprehensive income (loss) attributable to Delphi Technologies (net of tax) for the three and six months ended June 30, 2019 and 2018 are shown below. Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) Foreign currency translation adjustments: Balance at beginning of period $ (157 ) $ (56 ) $ (165 ) $ (85 ) Aggregate adjustment for the period (1) (13 ) (81 ) (5 ) (52 ) Balance at end of period (170 ) (137 ) (170 ) (137 ) Gains (losses) on derivatives: Balance at beginning of period 14 (1 ) (2 ) — Other comprehensive income before reclassifications (net tax effect of $0, $0, $0 and $0) (7 ) 3 11 2 Reclassification to income (net tax effect of $0, $0, $0 and $0) (2 ) — (4 ) — Balance at end of period 5 2 5 2 Pension and postretirement plans: Balance at beginning of period (211 ) (294 ) (245 ) (286 ) Other comprehensive income before reclassifications (net tax effect of $3, $6, $5 and $4) 8 19 27 6 Reclassification to income (net tax effect of $0, $1, $4 and $2) 1 5 16 10 Balance at end of period (202 ) (270 ) (202 ) (270 ) Accumulated other comprehensive loss, end of period $ (367 ) $ (405 ) $ (367 ) $ (405 ) (1) Includes gains of $5 million and gains of $2 million , for the three and six months ended June 30, 2019 , respectively, related to the foreign currency impact of intra-entity loans that are of a long-term investment nature. Also includes losses of $12 million and $5 million , for the three and six months ended June 30, 2018 , respectively, related to the foreign currency impact of intra-entity loans that are of a long-term investment nature. During the three and six months ended June 30, 2019 there were losses of $5 million and losses of $1 million , respectively, related to non-derivative net investment hedges. During the three and six months ended June 30, 2018 there were losses of less than $1 million and $1 million
Reclassifications out of Accumulated Other Comprehensive Income	Reclassifications from accumulated other comprehensive income (loss) to income for the six months ended June 30, 2019 and 2018 were as follows: Reclassification Out of Accumulated Other Comprehensive Income (Loss) Details About Accumulated Other Comprehensive Income (Loss) Components Three Months Ended June 30, Six Months Ended June 30, Affected Line Item in the Statement of Operations 2019 2018 2019 2018 (in millions) Pension and postretirement plans: Actuarial losses $ (1 ) $ (6 ) $ (5 ) $ (12 ) Other income (expense), net (1) Curtailment — — (15 ) — Other income (expense), net (1) (1 ) (6 ) (20 ) (12 ) Income before income taxes — 1 4 2 Income tax expense (1 ) (5 ) (16 ) (10 ) Net income — — — — Net income attributable to noncontrolling interest $ (1 ) $ (5 ) $ (16 ) $ (10 ) Net income attributable to Delphi Technologies (1) These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (see Note 10. Pension Benefits for additional details). Refer to Note. 16 Derivatives and Hedging Activities for additional reclassifications from accumulated other comprehensive income (loss) to income.

Derivatives And Hedging Activ_2

Derivatives And Hedging Activities Derivative and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative [Line Items]
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	As of June 30, 2019 , the Company had the following outstanding notional amounts related to foreign currency forward contracts designated as cash flow hedges that were entered into to hedge forecasted exposures: Foreign Currency Quantity Unit of Notional Amount (in millions) Chinese Yuan 814 RMB $ 120 Euro 88 EUR 100 Mexican Peso 966 MXN 50 Singapore Dollar 47 SGD 30 Polish Zloty 104 PLN 30 Turkish Lira 114 TRY 20
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	The following table includes the fair value of derivative instruments recorded in the consolidated balance sheets as of June 30, 2019 and December 31, 2018 : Asset Derivatives Liability Derivatives Balance Sheet Location* June 30, December 31, Balance Sheet Location* June 30, December 31, (in millions) Designated as cash flow hedges: Foreign currency derivatives Other current assets $ 5 $ 5 Other current assets $ — $ 1 Foreign currency derivatives Other long-term assets 1 — Other long-term assets — — Interest rate swaps Other long-term liabilities — — Other long-term liabilities 12 3 Designated as net investment hedges: Cross-currency swaps Other long-term assets 4 — Other long-term assets — — Cross-currency swaps Other long-term liabilities 7 — Other long-term liabilities — 3 Total designated as hedges $ 17 $ 5 $ 12 $ 7 Derivatives not designated as hedges: Foreign currency derivatives Other current assets $ 1 $ — Other current assets $ — $ — Total not designated as hedges $ 1 $ — $ — $ — * Derivative instruments are subject to master netting arrangements and are presented on a net basis in the consolidated balance sheets in accordance with accounting guidance related to the offsetting of amounts related to certain contracts.
Derivative Instruments, Gain (Loss) [Table Text Block]	The pre-tax effect of the derivative financial instruments in the consolidated statement of operations and consolidated statement of comprehensive income for the three and six months ended June 30, 2019 and 2018 is as follows: Three Months Ended June 30, 2019 Gain (Loss) Recognized in OCI Gain Reclassified from OCI into Income (in millions) Derivatives designated as cash flow hedges: Foreign currency derivatives $ 4 $ 2 Interest rate swaps (9 ) — Derivatives designated as net investment hedges: Cross-currency swaps (2 ) — Total $ (7 ) $ 2 Gain Recognized in Income (in millions) Derivatives not designated $ 2 Total $ 2 Three Months Ended June 30, 2018 Gain Recognized in OCI Gain Reclassified from OCI into Income (in millions) Derivatives designated as cash flow hedges: Foreign currency derivatives $ 3 $ — Total $ 3 $ — Loss Recognized in Income (in millions) Derivatives not designated $ 4 Total $ 4 Six Months Ended June 30, 2019 Gain (Loss) Recognized in OCI Gain Reclassified from OCI into Income (in millions) Derivatives designated as cash flow hedges: Foreign currency derivatives $ 6 $ 4 Interest rate swaps (9 ) — Derivatives designated as net investment hedges: Cross-currency swaps 14 — Total $ 11 $ 4 Loss Recognized in Income (in millions) Derivatives not designated $ — Total $ — Six Months Ended June 30, 2018 Gain Recognized in OCI Gain Reclassified from OCI into Income (in millions) Derivatives designated as cash flow hedges: Foreign currency derivatives $ 2 $ — Total $ 2 $ — Loss Recognized in Income (in millions) Derivatives not designated $ 8 Total $ 8

Fair Value of Financial Instr_2

Fair Value of Financial Instrument Fair Value of Financial Instruments Disclosure (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]	As of June 30, 2019 and December 31, 2018 Delphi Technologies had the following derivative assets measured at fair value on a recurring basis: Total Quoted Prices in Active Markets Significant Other Observable Inputs Significant Unobservable Inputs (in millions) As of June 30, 2019: Foreign currency derivatives $ 7 $ — $ 7 $ — Cross-currency swaps* 4 — 4 — Total $ 11 $ — $ 11 $ — As of December 31, 2018: Foreign currency derivatives $ 4 $ — $ 4 $ — Total $ 4 $ — $ 4 $ — * Derivative instruments are subject to master netting arrangements and are presented on a net basis in the consolidated balance sheets in accordance with accounting guidance related to the offsetting of amounts related to certain contracts. As of June 30, 2019 and December 31, 2018 Delphi Technologies had the following derivative liabilities measured at fair value on a recurring basis: Total Quoted Prices in Active Markets Significant Other Observable Inputs Significant Unobservable Inputs (in millions) As of June 30, 2019: Interest rate swaps* $ 12 $ — $ 12 $ — Cross-currency swaps* (7 ) — (7 ) — Total $ 5 $ — $ 5 $ — As of December 31, 2018: Interest rate swaps* $ 3 $ — $ 3 $ — Cross-currency swaps* 3 — 3 — Total $ 6 $ — $ 6 $ —

Other Income, Net (Tables)

Other Income, Net (Tables)	6 Months Ended
	Jun. 30, 2019
Other Income and Expenses [Abstract]
Interest and Other Income	Other income (expense), net included: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in millions) Interest income $ 2 $ 2 $ 4 $ 3 Components of net periodic benefit cost other than service cost (Note 10) 5 (2 ) (9 ) (3 ) Other, net 1 4 1 10 Other income (expense), net $ 8 $ 4 $ (4 ) $ 10

Share-Based Compensation Share-

Share-Based Compensation Share-Based Compensation Disclosure (Tables)	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Schedule of Executive RSU Grants [Table Text Block]	The details of the executive grant are as follows: Grant Date RSUs Granted Grant Date Fair Value Time-Based Award Vesting Dates Performance-Based Award Vesting Date (in millions) February 2019 1.0 $27 Annually on the anniversary grant date, 2020-2022 December 31, 2021 February 2018 0.3 $16 Annually on the anniversary grant date, 2019-2021 December 31, 2020
Share-based Compensation Arrangements by Share-based Payment Award, Performance-Based Units, Vested and Expected to Vest [Table Text Block]	Each executive will receive between 0% and 200%
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]	RSUs Weighted Average Grant Date Fair Value (in thousands) Nonvested, January 1, 2019 679 $ 42.70 Granted 1,210 24.87 Vested (172 ) 43.41 Forfeited (46 ) 32.83 Nonvested, June 30, 2019 1,671 28.47

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Included below are sales and operating data for the Company’s segments for the three and six months ended June 30, 2019 and 2018 . Powertrain Systems Aftermarket Eliminations Total (in millions) For the Three Months Ended June 30, 2019: Net sales $ 971 $ 214 $ (64 ) $ 1,121 Depreciation & amortization $ 55 $ 2 $ — $ 57 Adjusted operating income $ 64 $ 17 $ — $ 81 Operating income $ 43 $ 13 $ — $ 56 Equity loss, net of tax $ (1 ) $ — $ — $ (1 ) Net income attributable to noncontrolling interest $ 4 $ — $ — $ 4 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Three Months Ended June 30, 2018: Net sales $ 1,086 $ 215 $ (69 ) $ 1,232 Depreciation & amortization $ 47 $ 1 $ — $ 48 Adjusted operating income $ 134 $ 22 $ — $ 156 Operating income $ 105 $ 17 $ — $ 122 Equity income, net of tax $ 3 $ — $ — $ 3 Net income attributable to noncontrolling interest $ 4 $ — $ — $ 4 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Six Months Ended June 30, 2019: Net sales $ 1,991 $ 407 $ (126 ) $ 2,272 Depreciation & amortization $ 107 $ 3 $ — $ 110 Adjusted operating income $ 140 $ 28 $ — $ 168 Operating income $ 90 $ 21 $ — $ 111 Equity income, net of tax $ 1 $ — — $ — $ 1 Net income attributable to noncontrolling interest $ 7 $ — $ — $ 7 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Six Months Ended June 30, 2018: Net sales $ 2,239 $ 432 $ (143 ) $ 2,528 Depreciation & amortization $ 96 $ 2 $ — $ 98 Adjusted operating income $ 276 $ 39 $ — $ 315 Operating income $ 228 $ 32 $ — $ 260 Equity income, net of tax $ 6 $ — $ — $ 6 Net income attributable to noncontrolling interest $ 11 $ — $ — $ 11 (1) Eliminations and Other includes the elimination of inter-segment transactions.
Reconciliation of Segment Adjusted OI to Consolidated Net Income	The reconciliation of Adjusted Operating Income to Operating Income includes, as applicable, restructuring, separation costs, and asset impairments. The reconciliation of Adjusted Operating Income to net income attributable to Delphi Technologies for the three and six months ended June 30, 2019 and 2018 are as follows: Powertrain Systems Aftermarket Eliminations Total (in millions) For the Three Months Ended June 30, 2019: Adjusted operating income $ 64 $ 17 $ — $ 81 Restructuring (4 ) (1 ) — (5 ) Separation costs (1) (11 ) (2 ) — (13 ) Asset impairments (4 ) (1 ) — (5 ) Pension charges (2) (2 ) — — (2 ) Operating income $ 43 $ 13 $ — 56 Interest expense (18 ) Other income, net 8 Income before income taxes and equity income 46 Income tax expense (14 ) Equity loss, net of tax (1 ) Net income 31 Net income attributable to noncontrolling interest 4 Net income attributable to Delphi Technologies $ 27 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Three Months Ended June 30, 2018: Adjusted operating income $ 134 $ 22 $ — $ 156 Restructuring (11 ) (1 ) — (12 ) Separation costs (1) (17 ) (4 ) — (21 ) Asset impairments (1 ) — — (1 ) Operating income $ 105 $ 17 $ — 122 Interest expense (19 ) Other income, net 4 Income before income taxes and equity income 107 Income tax expense (20 ) Equity income, net of tax 3 Net income 90 Net income attributable to noncontrolling interest 4 Net income attributable to Delphi Technologies $ 86 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Six Months Ended June 30, 2019: Adjusted operating income $ 140 $ 28 $ — $ 168 Restructuring (7 ) (1 ) — (8 ) Separation costs (1) (27 ) (4 ) — (31 ) Asset impairments (7 ) (1 ) — (8 ) Pension charges (2) (9 ) (1 ) — (10 ) Operating income $ 90 $ 21 $ — 111 Interest expense (36 ) Other expense, net (4 ) Income before income taxes and equity income 71 Income tax expense (22 ) Equity income, net of tax 1 Net income 50 Net income attributable to noncontrolling interest 7 Net income attributable to Delphi Technologies $ 43 Powertrain Systems Aftermarket Eliminations Total (in millions) For the Six Months Ended June 30, 2018: Adjusted operating income $ 276 $ 39 $ — $ 315 Restructuring (22 ) (1 ) — (23 ) Separation costs (1) (25 ) (6 ) — (31 ) Asset impairments (1 ) — — (1 ) Operating income $ 228 $ 32 $ — 260 Interest expense (39 ) Other income, net 10 Income before income taxes and equity income 231 Income tax expense (42 ) Equity income, net of tax 6 Net income 195 Net income attributable to noncontrolling interest 11 Net income attributable to Delphi Technologies $ 184 (1) Separation costs include one-time incremental expenses associated with becoming a stand-alone publicly-traded company. (2) Pension charges include additional contributions to defined contribution plans, other payments to impacted employees and other related expenses resulting from the freeze of future accruals for nearly all U.K. defined benefit pension plans. The Company’s chief operating decision maker recently announced changes to the Company’s organization structure, effective July 2019. As a result of these changes, it is expected that the Company’s chief operating decision maker will make changes to how he assesses the performance of the business and allocates resources. Therefore, the Company anticipates this will result in a change to its operating segments by the filing of the Company’s Form 10-K for the year ended December 31, 2019. As of June 30, 2019 the Company’s chief operating decision maker continues to assess the performance of the business and allocate resources using the operating segments noted above.

Significant Accounting Polici_3

Significant Accounting Policies (Details) - USD ($) shares in Thousands, $ in Millions	Dec. 04, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Significant Accounting Policies [Line Items]
Operating Lease, Right-of-Use Asset		$ 117		$ 117		$ 0
Return assets		$ 5		$ 5		7
Separation Date	Dec. 4, 2017
Weighted Average Number of Shares Outstanding, Basic		87,770	88,780	88,110	88,750
Intangible assets, net (Excluding Goodwill)		$ 61		$ 61		69
Goodwill		7		7		7
Components of net periodic benefit cost other than service cost		(5)	$ 2	9	$ 3
Cost of technology investments				0	7
Amortization of Intangible Assets		2	$ 2	8	$ 6
Operating Lease, Liability, Noncurrent		99		$ 99		$ 0
Document Period End Date				Jun. 30, 2019
Operating Lease, Liability		$ 120		$ 120

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Productive material	$ 250	$ 250
Work-in-process	48	36
Finished goods	255	235
Inventory, Net	$ 553	$ 521

Assets Other Current Assets (De

Assets Other Current Assets (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Value added tax receivable	$ 98	$ 98
Reimbursable engineering costs	19	17
Notes receivable	10	15
Prepaid insurance and other expenses	19	14
Income and other taxes receivable	18	16
Return assets	5	7
Derivative Asset, Current	6	4
Other Prepaid Expense, Current	3	1
Total	$ 178	$ 172

Assets Other Assets, noncurrent

Assets Other Assets, noncurrent (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Schedule of Assets, noncurrent [Line Items]
Operating Lease, Right-of-Use Asset	$ 117	$ 0
Income Taxes Receivable, Noncurrent	41	53
Debt Issuance Costs, Line of Credit Arrangements, Net	3	3
Reimbursable Engineering Costs, Noncurrent	3	0
Derivative Asset	5	0
Other Assets, Miscellaneous, Noncurrent	39	33
Total Other long-term assets	236	117
Tula [Member]
Schedule of Assets, noncurrent [Line Items]
Other Long-term Investments	21	21
PolyCharge [Member]
Schedule of Assets, noncurrent [Line Items]
Other Long-term Investments	$ 7	$ 7

Liabilities Other Liabilities,

Liabilities Other Liabilities, Current (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Warranty obligations (Note 7)	$ 60	$ 68
Payroll-related obligations	50	45
Restructuring (Note 8)	42	46
Operating Lease, Liability, Current	21	0
Income and other taxes payable	62	63
Accrued rebates	27	29
Deferred reimbursable engineering	37	31
Accrued interest	10	12
Freight	17	20
Employee benefits, including current pension obligations	13	16
Outside services	12	13
Customer deposits	6	5
Deferred cost reimbursement	7	5
Other	79	75
Total	$ 443	$ 428

Liabilities Other Liabilities_2

Liabilities Other Liabilities, Non Current (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Operating Lease, Liability, Noncurrent	$ 99	$ 0
Restructuring (Note 8)	11	19
Warranty obligations (Note 7)	25	28
Deferred income taxes	15	14
Derivative Liability, Noncurrent	5	6
Accrued income taxes	46	46
Environmental (Note 11)	2	2
Other	3	8
Total	$ 206	$ 123

Leases (Details)

Leases (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Document Period End Date		Jun. 30, 2019
Lessee Finance Lease and Operating Lease Not Yet Commenced Amount	$ 14	$ 14
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	13	13
Finance Lease, Liability, Payments, Due Next Twelve Months	1	1
Lease Liability Payments Remainder of Fiscal Year	14	14
Operating Lease, Payments	$ 7	$ 14
Operating Lease, Weighted Average Remaining Lease Term	6 years 8 months 4 days	6 years 8 months 4 days
Finance Lease, Right-of-Use Asset, Amortization	$ 0	$ 1
Operating Lease, Right-of-Use Asset	117	117	$ 0
Finance Lease, Right-of-Use Asset	14	14
LeaseRightofUseAsset	131	131
Operating Lease, Liability, Current	21	21	0
Finance Lease, Liability, Current	2	2
Operating Lease, Liability, Noncurrent	99	99	$ 0
Finance Lease, Liability, Noncurrent	13	13
LeaseLiability	135	135
Operating Lease, Cost	10	18
Lease, Cost	$ 10	$ 19
Finance Lease, Weighted Average Remaining Lease Term	8 years 7 months 6 days	8 years 7 months 6 days
Operating Lease, Weighted Average Discount Rate, Percent	6.10%	6.10%
Finance Lease, Weighted Average Discount Rate, Percent	4.11%	4.11%
Lessee, Operating Lease, Liability, Payments, Due Year Two	$ 26	$ 26
Finance Lease, Liability, Payments, Due Year Two	2	2
Lease Liability Payments Due Year Two	28	28
Lessee, Operating Lease, Liability, Payments, Due Year Three	24	24
Finance Lease, Liability, Payments, Due Year Three	2	2
Lease Liability Payments Due Year Three	26	26
Lessee, Operating Lease, Liability, Payments, Due Year Four	20	20
Finance Lease, Liability, Payments, Due Year Four	2	2
Lease Liability Payments Due Year Four	22	22
Lessee, Operating Lease, Liability, Payments, Due Year Five	14	14
Finance Lease, Liability, Payments, Due Year Five	2	2
Finance Lease, Liability, Payments, Due after Year Five	9	9
Lease Liability Payments Due After Year Five	58	58
Lease Liability Payments Due Year Five	16	16
Lessee, Operating Lease, Liability, Payments, Due after Year Five	49	49
Lessee, Operating Lease, Liability, Payments, Due	146	146
Finance Lease, Liability, Payment, Due	18	18
Lease Liability Payments Due	164	164
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(26)	(26)
Finance Lease, Liability, Undiscounted Excess Amount	(3)	(3)
Lease Liability Undiscounted Excess Amount	(29)	(29)
Operating Lease, Liability	120	120
Finance Lease, Liability	$ 15	15
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability		$ 6
Minimum [Member]
Lessee, Lease, Description [Line Items]
Remaining Term of Operating and Finance Leases		1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Remaining Term of Operating and Finance Leases		10 years
Lessee Finance Lease And Operating Lease Lease Not Yet Commenced Term of Contract		11 years

Warranty Obligations (Details)

Warranty Obligations (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Accrual balance at beginning of period	$ 96
Provision for estimated warranties incurred during the period	19
Provision for changes in estimate for pre-existing warranties	0
Settlements made during the period (in cash or in kind)	(30)
Foreign currency translation and other	0
Accrual balance at end of period	85
Minimum [Member]
Product Warranty Liability [Line Items]
Product Liability Contingency, Loss Exposure in Excess of Accrual, Best Estimate	0
Maximum [Member]
Product Warranty Liability [Line Items]
Product Liability Contingency, Loss Exposure in Excess of Accrual, Best Estimate	$ 5

Restructuring Narrative (Detail

Restructuring Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 5	$ 12	$ 8	$ 23
Asset Impairment Charges	5	$ 1	8	1
Restructuring, Cash Expenditures			19	40
Cost of Sales [Member] | Fair Value, Measurements, Nonrecurring
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges	$ 5		$ 8	1
EUROPE | European Footprint Rotation
Restructuring Cost and Reserve [Line Items]
Restructuring				$ 5

Restructuring Restructuring Cos

Restructuring Restructuring Costs by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 5	$ 12	$ 8	$ 23
Powertrain Systems Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	4	11	7	22
Aftermarket Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 1	$ 1	$ 1	$ 1

Restructuring Restructuring Lia

Restructuring Restructuring Liability (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Reserve [Roll Forward]
Beginning Balance			$ 65
Restructuring Charges	$ 5	$ 12	8	$ 23
Payments made during the period			(19)	$ (40)
Foreign currency and other			(1)
Ending Balance	53		53
Employee Termination Benefits Liability
Restructuring Reserve [Roll Forward]
Beginning Balance			64
Restructuring Charges			8
Payments made during the period			(19)
Foreign currency and other			(1)
Ending Balance	52		52
Other Exit Costs Liability
Restructuring Reserve [Roll Forward]
Beginning Balance			1
Restructuring Charges			0
Payments made during the period			0
Foreign currency and other			0
Ending Balance	$ 1		$ 1

Debt Outstanding (Details)

Debt Outstanding (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Document Period End Date	Jun. 30, 2019
Total Debt	$ 1,514	$ 1,531
Debt, Current	(39)	(43)
Long-term debt	1,475	1,488
Senior Notes
Debt Instrument [Line Items]
Total Debt	786	785
Capital Leases and Other Debt [Member]
Debt Instrument [Line Items]
Total Debt	19	19
Term Loan A Facility [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Total Debt	$ 709	$ 727

Debt Senior Unsecured Notes (De

Debt Senior Unsecured Notes (Details) - USD ($)	Sep. 28, 2017	Sep. 07, 2017
Senior Secured Credit Facility [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Net		$ 9,000,000
Senior Unsecured Notes Due 2025 [Member] | Senior Notes
Debt Instrument [Line Items]
Senior notes issued	$ 800,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.00%

Debt Other Financing (Details)

Debt Other Financing (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Debt Instrument [Line Items]
Document Period End Date			Jun. 30, 2019
Interest Paid, Including Capitalized Interest, Operating and Investing Activities			$ 35	$ 37
Capital Lease Obligations	$ 15		15		$ 14
Europe [Member]
Debt Instrument [Line Items]
Receivables Factored Qualifying As Sales			21	$ 22
Interest Expense, Trading Liabilities			1
Aftermarket Segment [Member]
Debt Instrument [Line Items]
Receivables Factored Qualifying As Sales	43	$ 25	$ 74
Interest Expense, Trading Liabilities	$ 1	$ 1

Debt Credit Agreement (Details)

Debt Credit Agreement (Details) - USD ($)	Sep. 07, 2017	Jun. 30, 2019
Debt Instrument [Line Items]
Document Period End Date		Jun. 30, 2019
Line of Credit [Member] | Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,250,000,000
Term Loan A Facility [Member] | Line of Credit [Member] | Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 750,000,000
Debt Instrument, Term	5 years
Revolving Credit Facility [Member] | Line of Credit [Member] | Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 500,000,000
Debt Instrument, Term	5 years
JPMorgan Chase Bank, N.A. [Member] | Amended and Restated Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Compliance, Maximum Ratio of Indebtedness to EBITDA		350.00%

Pension Benefits Net Periodic B

Pension Benefits Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Document Period End Date			Jun. 30, 2019
Increase (Decrease) in Obligation, Pension Benefits			$ 33
Transitional Payments	$ 2		9
Liability, Other Retirement Benefits	1		1		$ 1
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment			(15)	$ 0
Service cost	2	$ 9	9	19
Interest cost	9	9	18	18
Expected return on plan assets	(15)	(13)	(29)	(27)
Amortization of actuarial losses	1	6	5	12
Net periodic benefit cost	$ (3)	$ 11	$ 18	$ 22

Commitments And Contingencies E

Commitments And Contingencies Environmental Matters (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Environmental Exit Cost [Line Items]
Accrual for Environmental Loss Contingencies	$ 3	$ 3
Accrued Environmental Loss Contingencies, Noncurrent	2	2
Accrued Liabilities
Environmental Exit Cost [Line Items]
Accrued Environmental Loss Contingencies, Current	1	1
Other Long-Term Liabilities
Environmental Exit Cost [Line Items]
Accrued Environmental Loss Contingencies, Noncurrent	$ 2	$ 2

Commitments And Contingencies O

Commitments And Contingencies Ordinary Business Litigation (Details) $ in Millions	Jun. 30, 2019USD ($)
Ordinary Business Litigation [Member] | Pending Litigation [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$ 20

Revenue Disaggregation of Reven

Revenue Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Document Period End Date			Jun. 30, 2019
Net sales	$ 1,121	$ 1,232	$ 2,272	$ 2,528
Contract with Customer, Asset, Reclassified to Receivable	1
Return assets	5		5		$ 7
North America [Member]
Disaggregation of Revenue [Line Items]
Net sales	314	349	652	705
Europe [Member]
Disaggregation of Revenue [Line Items]
Net sales	520	549	1,062	1,115
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Net sales	254	300	490	639
South America [Member]
Disaggregation of Revenue [Line Items]
Net sales	33	34	68	69
Internal Combustion Engine Products [Domain]
Disaggregation of Revenue [Line Items]
Net sales	705	749	1,427	1,544
Electrification & Electronics [Member]
Disaggregation of Revenue [Line Items]
Net sales	202	268	438	552
Independent Aftermarket [Member]
Disaggregation of Revenue [Line Items]
Net sales	159	159	300	314
Original Equipment Service [Member]
Disaggregation of Revenue [Line Items]
Net sales	55	56	107	118
Powertrain Systems Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	907	1,017	1,865	2,096
Aftermarket Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	214	215	407	432
Operating Segments [Member] | Powertrain Systems Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	971	1,086	1,991	2,239
Operating Segments [Member] | Aftermarket Segment [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 214	$ 215	$ 407	$ 432

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Valuation Allowance [Line Items]
Document Period End Date			Jun. 30, 2019
Income tax expense	$ 14	$ 20	$ 22	$ 42
Effective tax rate			31.00%	18.00%
Income Tax Expense (Benefit) associated with discrete items			$ 1	$ 2
Cash taxes paid			$ 28	$ 51

Shareholders' Equity And Net _3

Shareholders' Equity And Net Income Per Share Weighted Average Shares Outstanding and Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 24, 2019
Share Repurchases [Line Items]
Stock Repurchased and Retired During Period, Shares	845,959		0	1,583,876	0
Stock Repurchased Average Price	$ 17.73		$ 0	$ 18.94	$ 0
Repurchase of ordinary shares	$ 15	$ 15	$ 0	$ 30	$ 0
Numerator:
Net income attributable to Delphi Technologies	$ 27		$ 86	$ 43	$ 184
Weighted Average Number of Shares Outstanding, Basic	87,770,000		88,780,000	88,110,000	88,750,000
Denominator:
Dilutive shares related to restricted stock units	340,000		270,000	220,000	230,000
Weighted Average Number of Shares Outstanding, Diluted	88,110,000		89,050,000	88,330,000	88,980,000
Basic net income per share:
Basic (in dollars per share)	$ 0.31		$ 0.97	$ 0.49	$ 2.07
Diluted net income per share:
Diluted (in dollars per share)	$ 0.31		$ 0.97	$ 0.49	$ 2.07
Antidilutive securities share impact	0		0		0
Share repurchase Program July [Member]
Share Repurchases [Line Items]
Stock Repurchase Program, Authorized Amount	$ 100			$ 100
Share repurchase Program January [Member] [Domain]
Share Repurchases [Line Items]
Stock Repurchase Program, Authorized Amount						$ 200

Changes in Accumulated Other _3

Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Document Period End Date					Jun. 30, 2019
Adjustment for Long-term Intercompany Transactions, Net of Tax	$ 5		$ 12		$ 2	$ 5
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	500	$ 496	320	$ 302	500	320	$ 438	$ 232
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period		(412)			(412)
Accumulated other comprehensive income (loss), end of period	(367)		(405)		(367)	(405)
Other comprehensive income (loss)	(15)	59	(58)	22	44	(36)
Designated as Hedging Instrument | Net Investment Hedging
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Gain (loss) on net investment hedge, net of tax	5		1		1	1
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(170)		(137)		(170)	(137)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period	(157)	(165)	(56)	(85)	(165)	(85)
Accumulated other comprehensive income (loss), end of period	(170)	(157)	(137)	(56)	(170)	(137)
Other comprehensive income (loss)	(13)		(81)		(5)	(52)
Unrealized gains (losses) on derivatives
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period	14	(2)	(1)	0	(2)	0
Other comprehensive income (loss) before reclassifications (net of tax effect)	(7)		3		11	2
Reclassification to income (net of tax effect)	(2)		0		(4)	0
Accumulated other comprehensive income (loss), end of period	5	14	2	(1)	5	2
Net tax effect of Other comprehensive income before reclassifications	0		0		0	0
Net tax effect of Reclassification Adjustment from AOCI on Derivatives	0		0		0	0
Pension and postretirement plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), beginning of period	(211)	(245)	(294)	(286)	(245)	(286)
Other comprehensive income (loss) before reclassifications (net of tax effect)	8		19		27	6
Reclassification to income (net of tax effect)	1		5		16	10
Accumulated other comprehensive income (loss), end of period	(202)	(211)	(270)	(294)	(202)	(270)
Net tax effect of Other comprehensive income before reclassifications	2		2		2	3
Net tax effect of Reclassification Adjustment from AOCI, Pension and Other Postretirement Plans	4		1		4	3
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(367)	(354)	(405)	(351)	$ (367)	$ (405)	$ (412)	$ (371)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive income (loss)	$ (13)	$ 58	$ (54)	$ 20

Changes in Accumulated Other _4

Changes in Accumulated Other Comprehensive Income AOCI Reclassifications (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Document Fiscal Year Focus					2019
Adjustment for Long-term Intercompany Transactions, Net of Tax	$ 5		$ 12		$ 2	$ 5
Income tax expense	(14)		(20)		(22)	(42)
Net income	31	$ 19	90	$ 105	50	195
Net income attributable to noncontrolling interest	(4)		(4)		(7)	(11)
Net income attributable to Delphi Technologies	27		86		43	184
Amount Reclassified from Accumulated Other Comprehensive Income | Pension and postretirement plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Actuarial losses	(1)		(6)		(5)	(12)
Curtailment	0		0		(15)
Income before income taxes	(1)		(6)		(20)	(12)
Income tax expense	0		1		4	2
Net income	(1)		(5)		(16)	(10)
Net income attributable to noncontrolling interest	0		0		0	0
Net income attributable to Delphi Technologies	$ (1)		$ (5)		$ (16)	$ (10)

Derivatives And Hedging Activ_3

Derivatives And Hedging Activities Derivative (Details) ₺ in Millions, € in Millions, ¥ in Millions, $ in Millions, $ in Millions, $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019CNY (¥)	Jun. 30, 2019SGD ($)	Jun. 30, 2019EUR (€)	Jun. 30, 2019TRY (₺)	Jun. 30, 2019MXN ($)	Dec. 31, 2018USD ($)
Derivative [Line Items]
Document Period End Date			Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect before Tax 1	$ (6)		$ (6)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	(6)		(6)
Derivative Asset	5		5								$ 0
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount											400
Currency Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	600		600
Cost of Sales [Member] | Forecast [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net				$ (7)	$ (1)
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Gain on Derivative	2
Derivative, Loss on Derivative		$ 4
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	1		1								0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0								0
Not Designated as Hedging Instrument [Member] | Foreign currency derivatives
Derivative [Line Items]
Derivative, Gain on Derivative	2
Derivative, Loss on Derivative		4
Designated as Hedging Instrument [Member}
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(7)	3
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	2	$ 0
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	17		17								5
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	12		12								7
Other Current Assets [Member] | Not Designated as Hedging Instrument [Member] | Foreign currency derivatives
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	1		1								0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0
Derivative Asset	0		0
Net Investment Hedging [Member] | Not Designated as Hedging Instrument [Member] | Currency Swap [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(2)
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	0
Net Investment Hedging [Member] | Other Long-Term Liabilities | Designated as Hedging Instrument [Member} | Foreign currency derivatives
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	7		7								0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0								3
Net Investment Hedging [Member] | Accrued Liabilities | Designated as Hedging Instrument [Member} | Foreign currency derivatives
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0								0
Net Investment Hedging [Member] | Other Current Assets [Member] | Designated as Hedging Instrument [Member} | Foreign currency derivatives
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	4		4								0
Cash Flow Hedging [Member] | Poland, Zlotych | Foreign currency derivatives
Derivative [Line Items]
Derivative, Notional Amount	30		30						₺ 104
Cash Flow Hedging [Member] | Singapore, Dollars | Foreign currency derivatives
Derivative [Line Items]
Derivative, Notional Amount	30		30				$ 47
Cash Flow Hedging [Member] | Euro Member Countries, Euro | Foreign currency derivatives
Derivative [Line Items]
Derivative, Notional Amount	100		100					€ 88
Cash Flow Hedging [Member] | Mexico, Pesos | Foreign currency derivatives
Derivative [Line Items]
Derivative, Notional Amount	50		50							$ 966
Cash Flow Hedging [Member] | China, Yuan Renminbi | Foreign currency derivatives
Derivative [Line Items]
Derivative, Notional Amount	120		120			¥ 814
Cash Flow Hedging [Member] | Turkey, Lira | Foreign currency derivatives
Derivative [Line Items]
Derivative, Notional Amount	20		20						₺ 114
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member} | Foreign currency derivatives
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	4
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	2
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member} | Interest Rate Swap [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(9)
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	0
Cash Flow Hedging [Member] | Other Long-Term Liabilities | Designated as Hedging Instrument [Member} | Foreign currency derivatives
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	0		0								0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	12		12
Derivative Liability	(3)		(3)
Cash Flow Hedging [Member] | Other Noncurrent Assets [Member] | Designated as Hedging Instrument [Member} | Foreign currency derivatives
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	1		1								0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0
Derivative Asset	0		0
Cash Flow Hedging [Member] | Other Current Assets [Member] | Designated as Hedging Instrument [Member} | Foreign currency derivatives
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	5		5								$ 5
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0		0
Derivative Asset	$ 1		$ 1

Fair Value of Financial Instr_3

Fair Value of Financial Instrument (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	$ 5		$ 5		$ 0
Debt, Long-term and Short-term, Combined Amount	1,514		1,514		1,531
Derivative, Fair Value, Net	6		6		(2)
Asset Impairment Charges	5	$ 1	8	$ 1
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Fair Value Disclosure	1,433		1,433		1,415
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	5		5		6
Assets, Fair Value Disclosure	11		11		4
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0		0		0
Assets, Fair Value Disclosure	0		0		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	5		5		6
Assets, Fair Value Disclosure	11		11		4
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0		0		0
Assets, Fair Value Disclosure	0		0		0
Foreign currency derivatives | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	7		7		4
Foreign currency derivatives | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0		0		0
Foreign currency derivatives | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	7		7		4
Foreign currency derivatives | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0		0		0
Interest Rate Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	12		12		3
Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	0		0		0
Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	12		12		3
Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	0		0		0
Currency Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	4		4
Derivative Liability	(7)		(7)		3
Currency Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0		0
Derivative Liability	0		0		0
Currency Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	4		4
Derivative Liability	(7)		(7)		3
Currency Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0		0
Derivative Liability	0		0		$ 0
Cost of Sales [Member] | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Impairment Charges	$ 5		$ 8	$ 1

Other Income, Net Table (Detail

Other Income, Net Table (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Income and Expenses [Abstract]
Interest income	$ 2	$ 2	$ 4	$ 3
Components of net periodic benefit cost other than service cost (Note 9)	5	(2)	(9)	(3)
Other, net	1	4	1	10
Other income (expense), net	$ 8	$ 4	$ (4)	$ 10

Share-Based Compensation Shar_2

Share-Based Compensation Share-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	Apr. 25, 2019	Apr. 24, 2019	Apr. 26, 2018	Apr. 25, 2018	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number								679,000
Share-based Payment Arrangement, Expense					$ 5		$ 9
Share-based Payment Arrangement, Expense, after Tax					5		9
Document Period End Date						Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized								7,500,000
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount					$ 33	$ 33
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition						2 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number					1,671,000	1,671,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value						$ 43.41
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period						46,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value						$ 32.83
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value					$ 28.47	$ 28.47		$ 42.70
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period						1,210,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value						$ 24.87
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period						172,000
PLC Long Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Granted In Period, Fair Value						$ 27	$ 16
Management [Member] | PLC Long Term Incentive Plan [Member] | 2019 Grant [Member] [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period						1,000,000
Management [Member] | PLC Long Term Incentive Plan [Member] | 2018 Grant [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period							300,000
Employee and Non-employee members [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	70,924	33,944	34,756
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$ 2	$ 1		$ 2
Employee and Non-employee members [Member] | Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value						$ 3
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date						10 years
Executive Officer [Member] | Delphi Technologies PLC Long Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage								33.00%
Executive Officer [Member] | Delphi Technologies PLC Long Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage								67.00%
Other Executive [Member] | Delphi Technologies PLC Long Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage								50.00%
Other Executive [Member] | Delphi Technologies PLC Long Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage								50.00%
Executive [Member] | Delphi Technologies PLC Long Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Maximum [Member] | Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Target Performance, Percentage								200.00%

Segment Reporting Reconciliatio

Segment Reporting Reconciliation of Sales and Operating Data (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Net sales	$ 1,121	$ 1,232	$ 2,272	$ 2,528
Depreciation and amortization	57	48	110	98
Adjusted operating income	81	156	168	315
Operating income	56	122	111	260
Equity (loss) income, net of tax	(1)	3	1	6
Net income attributable to noncontrolling interest	4	4	7	11
Powertrain Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	907	1,017	1,865	2,096
Aftermarket Segment [Member]
Segment Reporting Information [Line Items]
Net sales	214	215	407	432
Operating Segments | Powertrain Systems Segment [Member]
Segment Reporting Information [Line Items]
Net sales	971	1,086	1,991	2,239
Depreciation and amortization	55	47	107	96
Adjusted operating income	64	134	140	276
Operating income	43	105	90	228
Equity (loss) income, net of tax	(1)	3	1	6
Net income attributable to noncontrolling interest	4	4	7	11
Operating Segments | Aftermarket Segment [Member]
Segment Reporting Information [Line Items]
Net sales	214	215	407	432
Depreciation and amortization	2	1	3	2
Adjusted operating income	17	22	28	39
Operating income	13	17	21	32
Equity (loss) income, net of tax	0	0	0	0
Net income attributable to noncontrolling interest	0	0	0	0
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net sales	(64)	(69)	(126)	(143)
Depreciation and amortization	0	0	0	0
Adjusted operating income	0	0	0	0
Operating income	0	0	0	0
Equity (loss) income, net of tax	0	0	0	0
Net income attributable to noncontrolling interest	$ 0	$ 0	$ 0	$ 0

Segment Reporting Reconciliat_2

Segment Reporting Reconciliation of Adjusted OI to Net Income (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Reconciliation of Segment Adjusted OI to Consolidated Net Income
Adjusted operating income	$ 81		$ 156		$ 168	$ 315
Pension Charges					(10)	(2)
Restructuring	(5)		(12)		(8)	(23)
Separation Costs	13		(21)		31	(31)
Asset impairments	(5)		(1)		(8)	(1)
Operating income	56		122		111	260
Interest expense	(18)		(19)		(36)	(39)
Other income (expense), net	8		4		(4)	10
Income before income taxes and equity income	46		107		71	231
Income tax expense	(14)		(20)		(22)	(42)
Equity (loss) income, net of tax	(1)		3		1	6
Net income	31	$ 19	90	$ 105	50	195
Net income attributable to noncontrolling interest	4		4		7	11
Net income attributable to Delphi Technologies	27		86		43	184
Powertrain Systems Segment [Member]
Reconciliation of Segment Adjusted OI to Consolidated Net Income
Restructuring	(4)		(11)		(7)	(22)
Aftermarket Segment [Member]
Reconciliation of Segment Adjusted OI to Consolidated Net Income
Restructuring	(1)		(1)		(1)	(1)
Operating Segments | Signal and Power Solutions [Member]
Reconciliation of Segment Adjusted OI to Consolidated Net Income
Pension Charges					(9)
Operating Segments | Advanced Safety and User Experience [Member]
Reconciliation of Segment Adjusted OI to Consolidated Net Income
Pension Charges					(1)
Operating Segments | Powertrain Systems Segment [Member]
Reconciliation of Segment Adjusted OI to Consolidated Net Income
Adjusted operating income	64		134		140	276
Pension Charges						(2)
Restructuring	(4)		(11)		(7)	(22)
Separation Costs	11		(17)		27	(25)
Asset impairments	(4)		(1)		(7)	(1)
Operating income	43		105		90	228
Equity (loss) income, net of tax	(1)		3		1	6
Operating Segments | Aftermarket Segment [Member]
Reconciliation of Segment Adjusted OI to Consolidated Net Income
Adjusted operating income	17		22		28	39
Pension Charges						0
Restructuring	(1)		(1)		(1)	(1)
Separation Costs	2		(4)		4	(6)
Asset impairments	(1)		0		(1)	0
Operating income	13		17		21	32
Equity (loss) income, net of tax	0		0		0	0
Intersegment Eliminations
Reconciliation of Segment Adjusted OI to Consolidated Net Income
Adjusted operating income	0		0		0	0
Pension Charges					0	0
Restructuring	0		0		0	0
Separation Costs	0		0		0	0
Asset impairments	0		0		0	0
Operating income	0		0		0	0
Equity (loss) income, net of tax	$ 0		$ 0		$ 0	$ 0