TRW Automotive (TRW) 10-Q 28 Oct 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 26, 2014	Oct. 22, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Document Period End Date	26-Sep-14	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--12-31	'
Entity Central Index Key	'0001267097	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Registrant Name	'TRW Automotive Holdings Corp.	'
Entity Voluntary Filers	'No	'
Entity Well-known Seasoned Issuer	'Yes	'
Entity Common Stock, Shares Outstanding	'	110,629,393
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'

Consolidated_Statements_of_Ear

Consolidated Statements of Earnings (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Consolidated Statements of Earnings (Unaudited)	'	'	'	'
Sales	$4,156	$4,212	$13,191	$12,939
Cost of sales	3,681	3,762	11,649	11,531
Gross profit	475	450	1,542	1,408
Administrative and selling expenses	174	151	509	439
Restructuring charges and asset impairments	10	5	36	43
Transaction Costs	13	0	13	0
Other (income) expense - net	-13	5	2	-1
Operating income	291	289	982	927
Interest expense - net	25	33	82	97
Loss on retirement of debt - net	0	0	0	5
Equity in earnings of affiliates, net of tax	-12	-12	-32	-35
Earnings before income taxes	278	268	932	860
Income tax expense	80	62	250	221
Net earnings	198	206	682	639
Less: Net earnings attributable to noncontrolling interest, net of tax	9	9	29	32
Net earnings attributable to TRW	$189	$197	$653	$607
Basic earnings per share:	'	'	'	'
Earnings per share	$1.70	$1.68	$5.85	$5.12
Weighted average shares outstanding	111.1	117	111.7	118.5
Diluted earnings per share:	'	'	'	'
Earnings per share	$1.61	$1.60	$5.56	$4.88
Weighted average shares outstanding	117.8	124.2	118.3	125.6

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Earnings (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Consolidated Statements of Comprehensive Earnings (Unaudited)	'	'	'	'
Net earnings	$198	$206	$682	$639
Other comprehensive earnings (losses):	'	'	'	'
Foreign currency translation	-153	70	-120	-47
Retirement obligations, net of tax	15	-5	14	-23
Deferred cash flow hedges, net of tax	7	16	31	-10
Total other comprehensive earnings (losses)	-131	81	-75	-80
Comprehensive earnings	67	287	607	559
Less: Comprehensive earnings attributable to noncontrolling interest	8	12	24	35
Comprehensive earnings attributable to TRW	$59	$275	$583	$524

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 26, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$815	$1,729
Accounts receivable - net	2,841	2,478
Inventories	1,079	1,019
Prepaid expenses and other current assets	459	402
Assets held-for-sale	261	0
Total current assets	5,455	5,628
Property, plant and equipment - net of accumulated depreciation of $4,151 and $4,420, respectively	2,489	2,718
Goodwill	1,753	1,760
Intangible Assets Net Excluding Goodwill	288	292
Pension assets	1,175	1,059
Other assets	826	795
Total assets	11,986	12,252
Current liabilities:	'	'
Short-term debt	238	159
Current portion of long-term debt	35	482
Trade accounts payable	2,426	2,597
Accrued compensation	275	285
Other current liabilities	1,251	1,232
Liabilities related to assets held-for-sale	100	0
Total current liabilities	4,325	4,755
Long-term debt	1,452	1,473
Postretirement benefits other than pensions	362	375
Pension benefits	576	676
Other long-term liabilities	682	577
Total liabilities	7,397	7,856
Stockholders' equity:	'	'
Capital stock	1	1
Paid-in-capital	1,705	1,715
Retained earnings	3,110	2,858
Accumulated other comprehensive earnings (losses)	-450	-380
Total TRW stockholders' equity	4,366	4,194
Noncontrolling interest	223	202
Total equity	4,589	4,396
Total liabilities and equity	$11,986	$12,252

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)	Sep. 26, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Condensed Consolidated Balance Sheets (Unaudited)	'	'
Accumulated depreciation on Property, plant and equipment	$4,151	$4,420

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013
Operating Activities	'	'
Net earnings	$682	$639
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:	'	'
Depreciation and amortization	337	318
Net pension and other postretirement benefits income and contributions	-159	-175
Loss on retirement of debt - net	0	5
Asset Impairment Restructuring Charges	12	0
Deferred income taxes	119	110
Other - net	9	27
Changes in assets and liabilities:	'	'
Accounts receivable - net	-491	-792
Inventories	-151	-91
Trade accounts payable	-53	157
Prepaid expenses and other assets	-133	-31
Other liabilities	109	73
Net cash provided by (used in) operating activities	281	240
Investing Activities	'	'
Capital expenditures, including other intangible assets	-354	-411
Net proceeds from asset sales and divestitures	1	1
Investment in non-consolidated joint venture assets	-6	0
Net cash provided by (used in) investing activities	-359	-410
Financing Activities	'	'
Change in short-term debt	79	42
Proceeds from issuance of long-term debt, net of fees	13	484
Redemption of long-term debt	-484	-121
Proceeds from exercise of stock options	3	29
Payments for repurchase of capital stock	-400	-460
Dividends paid to noncontrolling interest	-3	-15
Net cash provided by (used in) financing activities	-792	-41
Effect of exchange rate changes on cash	-31	1
Change In Cash Held For Sale	-13	0
Increase (decrease) in cash and cash equivalents	-914	-210
Cash and cash equivalents at beginning of period	1,729	1,223
Cash and cash equivalents at end of period	$815	$1,013

Description_of_Business

Description of Business	9 Months Ended
	Sep. 26, 2014
Description of Business [Abstract]	'
Description of Business	'
	1. Description of Business
	TRW Automotive Holdings Corp. (also referred to herein as the “Company”) is among the world's largest and most diversified suppliers of automotive systems, modules and components to global automotive original equipment manufacturers (“OEMs”) and related aftermarkets. The Company conducts substantially all of its operations through subsidiaries. These operations primarily encompass the design, manufacture and sale of active and passive safety related products and systems. Active safety related products and systems principally refer to vehicle dynamic controls (primarily braking and steering), and passive safety related products and systems principally refer to occupant restraints (primarily airbags and seat belts) and safety electronics (primarily electronic control units and crash and occupant weight sensors). The Company is primarily a “Tier 1” supplier (a supplier that sells to OEMs). In 2013, approximately 83% of the Company's end-customer sales were to major OEMs.

Merger

Merger	9 Months Ended
	Sep. 26, 2014
Merger [Abstract]	'
Merger [Text Block]	'
	2. Merger
	On September 15, 2014, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with ZF Friedrichshafen AG, a stock corporation organized and existing under the laws of the Federal Republic of Germany (“ZF”), and MSNA, Inc., a Delaware corporation (“Merger Sub”) and a wholly owned subsidiary of ZF held directly by ZF North America, Inc. (“ZNA”), pursuant to which Merger Sub will be merged with and into the Company (the “ZF Merger”) with the Company surviving the ZF Merger as an indirect wholly owned subsidiary of ZF. The Board of Directors of the Company unanimously approved the Merger Agreement and resolved to recommend that the Company's stockholders vote to adopt the Merger Agreement.
	At the effective time of the ZF Merger, each share of the Company's common stock issued and outstanding (other than any shares of Company common stock held by ZF, ZNA, Merger Sub or any other wholly owned subsidiary of ZF, treasury shares held by the Company and shares owned by stockholders who have properly made and not withdrawn a demand for appraisal rights under Delaware law) will be converted into the right to receive $105.60 in cash, without interest (the “Merger Consideration”). In addition, at the effective time of the ZF Merger, (i) all then-outstanding Company stock options, restricted stock units (“RSUs”), phantom stock units (“PSUs”) and performance share units (“Performance Units,” which will vest at the “maximum level” of performance), whether vested or unvested, will be converted into the right to receive the Merger Consideration, less the exercise price of such awards, if any, and (ii) all then-outstanding Company stock-settled stock appreciation rights (“SSARs”), whether vested or unvested, will be converted into the right to receive an amount in cash equal to the excess of the lesser of the Merger Consideration and the “maximum value” of such stock appreciation right over the fair market value per share at the relevant grant date. The consummation of the ZF Merger is subject to customary closing conditions, including approval by the Company's stockholders as well as the receipt of antitrust and other regulatory approvals in the United States and certain other jurisdictions and other customary closing conditions. The transaction is expected to close in the first half of 2015. If completed, the ZF Merger will result in the Company becoming a wholly owned subsidiary of ZF and its shares will no longer be listed on any public market.

Basis_of_Presentation

Basis of Presentation	9 Months Ended
	Sep. 26, 2014
Basis of Presentation [Abstract]	'
Basis of Presentation	'
	3. Basis of Presentation
	These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2013, filed with the U.S. Securities and Exchange Commission (“SEC”) on February 14, 2014.
	These unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC for interim financial information. Accordingly, they do not include all of the information and footnotes required by United States generally accepted accounting principles (“GAAP”) for complete financial statements. These financial statements include all adjustments (consisting primarily of normal, recurring adjustments) considered necessary for a fair presentation of the financial position, results of operations and cash flows of the Company. Operating results for the three and nine months ended September 26, 2014 are not necessarily indicative of results that may be expected for the year ending December 31, 2014.
	The Company follows a fiscal calendar that ends on December 31. However, each fiscal quarter has three periods consisting of one five week period and two four week periods. Each quarterly period ends on a Friday, with the possible exception of the final quarter of the year, which always ends on December 31.
	Earnings Per Share. Basic earnings per share are calculated by dividing net earnings by the weighted average shares outstanding during the period. Diluted earnings per share reflect the weighted average impact of all potentially dilutive securities from the date of issuance, including stock options, RSUs, SSARs and Performance Units. Further, if the inclusion of shares potentially issuable for the Company's 3.50% exchangeable senior unsecured notes (see Note 12) is more dilutive than the inclusion of the interest expense for those exchangeable notes, the Company utilizes the “if-converted” method to calculate diluted earnings per share. Under the if-converted method, the Company adjusts net earnings to add back interest expense and amortization of the discount recognized on the exchangeable notes and includes the number of shares potentially issuable related to the exchangeable notes in the weighted average shares outstanding.
	If the average market price of the Company's common stock exceeds the exercise price of stock options outstanding or the fair value on the date of grant of the SSARs, the treasury stock method is used to determine the incremental number of shares to be included in the diluted earnings per share computation.
	Net earnings attributable to TRW and the weighted average shares outstanding used in calculating basic and diluted earnings per share were:
				Three Months Ended							Nine Months Ended
				September 26,				September 27,			September 26,			September 27,
				2014				2013			2014			2013
				(In millions, except per share amounts)
		Net earnings attributable to TRW		$	189			$	197		$	653		$	607
		Interest expense on exchangeable notes, net of tax			-				1			2			3
		Amortization of discount on exchangeable notes, net of tax			1				1			3			3
		Net earnings attributable to TRW for purposes of calculating diluted earnings per share		$	190			$	199		$	658		$	613
		Basic:
			Weighted average shares outstanding		111.1				117			111.7			118.5
			Basic earnings per share	$	1.7			$	1.68		$	5.85		$	5.12
		Diluted:
			Weighted average shares outstanding		111.1				117			111.7			118.5
			Effect of dilutive stock options, RSUs and SSARs		1.7				1.3			1.6			1.2
			Shares applicable to exchangeable notes		5				5.9			5			5.9
			Diluted weighted average shares outstanding		117.8				124.2			118.3			125.6
			Diluted earnings per share	$	1.61			$	1.6		$	5.56		$	4.88
	For the three and nine months ended September 26, 2014, de minimis and approximately 0.6 million securities, respectively, were excluded from the calculation of diluted earnings per share because the inclusion of such securities in the calculation would have been anti-dilutive.
	For the three and nine months ended September 27, 2013, approximately 0.4 million and 1.6 million securities, respectively, were excluded from the calculation of diluted earnings per share because the inclusion of such securities in the calculation would have been anti-dilutive.
	Equity. The following tables present a rollforward of the changes in equity attributable to TRW shareholders and to the noncontrolling interest.
				Three Months Ended
				26-Sep-14										27-Sep-13
				Total				TRW Shareholders			Noncontrolling Interest			Total		TRW Shareholders		Noncontrolling Interest
				(Dollars in millions)
	Beginning balance of equity			$	4,539			$	4,324		$	215		$	3,853	$	3,654	$	199
	Net earnings				198				189			9			206		197		9
	Other comprehensive (losses) earnings				-131				-130			-1			81		78		3
	Changes related to share-based compensation				-17				-17			-			19		19		-
	Repurchase of capital stock				-				-			-			-260		-260		-
	Ending balance of equity			$	4,589			$	4,366		$	223		$	3,899	$	3,688	$	211
				Nine Months Ended
				26-Sep-14										27-Sep-13
				Total				TRW Shareholders			Noncontrolling Interest			Total		TRW Shareholders		Noncontrolling Interest
				(Dollars in millions)
	Beginning balance of equity			$	4,396			$	4,194		$	202		$	3,769	$	3,578	$	191
	Net earnings				682				653			29			639		607		32
	Other comprehensive (losses) earnings				-75				-70			-5			-80		-83		3
	Dividends paid to noncontrolling interest				-3				-			-3			-15		-		-15
	Changes related to share-based compensation				-11				-11			-			46		46		-
	Repurchase of capital stock				-400				-400			-			-460		-460		-
	Ending balance of equity			$	4,589			$	4,366		$	223		$	3,899	$	3,688	$	211
	The following tables present changes in accumulated other comprehensive earnings (losses) attributable to TRW by component:
						Foreign Currency Translation			Retirement Obligations		Deferred Cash Flow Hedges		Total
						(Dollars in millions)
	For the three months ended September 26, 2014:
	Beginning balance attributable to TRW, net of tax					$	78		$	-406	$	8	$	-320
			Other comprehensive (losses) earnings before reclassifications, net of tax				-152			14		7		-131
			Amounts reclassified from accumulated other comprehensive earnings, net of tax				-			1(a)		-		1
	Other comprehensive (losses) earnings, net of tax						-152			15		7		-130
	Ending balance attributable to TRW, net of tax					$	-74		$	-391	$	15	$	-450
	For the three months ended September 27, 2013:
	Beginning balance attributable to TRW, net of tax					$	-34		$	-577	$	-16	$	-627
			Other comprehensive earnings (losses) before reclassifications, net of tax				67			-10		16		73
			Amounts reclassified from accumulated other comprehensive earnings (losses), net of tax				-			5(b)		-		5
	Other comprehensive earnings (losses), net of tax						67			-5		16		78
	Ending balance attributable to TRW, net of tax					$	33		$	-582	$	-	$	-549
(a)		Includes actuarial gains of $4 million, reduced by prior service cost of $3 million, net of tax of a de minimis amount.
(b)		Includes actuarial gains of $11 million, reduced by prior service cost of $4 million, net of tax of $2 million.
					Foreign Currency Translation			Retirement Obligations		Deferred Cash Flow Hedges		Total
					(Dollars in millions)
For the nine months ended September 26, 2014:
Beginning balance attributable to TRW, net of tax					$	41		$	-405	$	-16	$	-380
		Other comprehensive (losses) earnings before reclassifications, net of tax				-115			11		27		-77
		Amounts reclassified from accumulated other comprehensive earnings, net of tax				-			3(a)		4		7
Other comprehensive (losses) earnings, net of tax						-115			14		31		-70
Ending balance attributable to TRW, net of tax					$	-74		$	-391	$	15	$	-450
For the nine months ended September 27, 2013:
Beginning balance attributable to TRW, net of tax					$	83		$	-559	$	10	$	-466
		Other comprehensive losses before reclassifications, net of tax				-50			-37		-9		-96
		Amounts reclassified from accumulated other comprehensive earnings (losses), net of tax				-			14(b)		-1		13
Other comprehensive losses, net of tax						-50			-23		-10		-83
Ending balance attributable to TRW, net of tax					$	33		$	-582	$	-	$	-549
(a)		Includes actuarial gains of $13 million, reduced by prior service cost of $9 million, net of tax of $1 million.
(b)		Includes actuarial gains of $33 million, reduced by prior service cost of $13 million, net of tax of $6 million.
Warranties. Product warranty liabilities are recorded based upon management estimates including such factors as the written agreement with the customer, the length of the warranty period, the historical performance of the product and likely changes in performance of newer products and the mix and volume of products sold. Product warranty liabilities are reviewed on a regular basis and adjusted to reflect actual experience.
	The following table presents the movement in the product warranty liability for the periods indicated:
			Nine Months Ended
			September 26,				September 27,
			2014				2013
			(Dollars in millions)
	Beginning balance		$	152			$	140
	Current period accruals, net of changes in estimates			33				44
	Accruals related to divestitures			-2				-
	Used for purposes intended			-28				-30
	Effects of foreign currency translation			-5				-1
	Ending balance		$	150			$	153
Recently Issued Accounting Pronouncements. In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which provides a single revenue recognition model intended to improve comparability over a range of industries, companies and geographical boundaries and is intended to enhance disclosures.  The standard is effective retrospectively for fiscal years (and interim reporting periods within those years) beginning after December 15, 2016. Early adoption is not permitted. The Company is currently assessing the potential impact on its operations and financial statements.
In August 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements – Going Concern (Subtopic 205-40),” which requires management to evaluate, at each annual and interim reporting period, whether there is substantial doubt about the Company's ability to continue as a going concern within one year after the date the financial statements are issued and provide related footnote disclosures. The standard is effective for the annual period ending after December 15, 2016 and for the annual and interim periods thereafter. Early adoption is permitted. This standard is not expected to have a material impact on the Company's financial statements.

Assets_Held_for_Sale

Assets Held for Sale	9 Months Ended
	Sep. 26, 2014
Assets Held for Sale [Abstract]	'
Assets Held for Sale [Text Block]	'
	4. Assets Held-For-Sale
	On September 10, 2014, the Company entered into a definitive agreement to divest its engine valve business for a purchase price of $385 million in cash which is subject to adjustment in accordance with the agreement as of the closing date. The engine valve business is reported within the Automotive Components segment (see Note 18). The planned divestiture is expected to close in the first quarter of 2015. This transaction qualified for held-for-sale accounting treatment, and as such, the assets and liabilities associated with the transaction are separately classified as held-for-sale in the condensed consolidated balance sheet as of September 26, 2014 and depreciation of long-lived assets ceased. The planned divestiture did not meet the criteria for presentation as a discontinued operation.
	The major classes of assets and liabilities held-for-sale were as follows:
					As of
					26-Sep-14
					(Dollars in millions)
		Cash			$	13
		Accounts receivable — net				25
		Inventories				48
		Prepaid expenses and other current assets				7
		Property, plant and equipment — net				157
		Other assets				11
			Total assets held-for-sale		$	261
		Trade accounts payable			$	23
		Accrued compensation				20
		Other current liabilities				24
		Pension benefits				33
			Total liabilities related to assets held-for-sale		$	100
	Earnings before income taxes for the engine valve business were as follows:
				Three Months Ended					Nine Months Ended
				September 26,			September 27,		September 26,		September 27,
				2014			2013		2014		2013
				(Dollars in millions)
	Earnings before income taxes			$	7		$	7	$	20	$	24
	Less: Earnings attributable to noncontrolling interest				1			1		3		4
		Earnings before income taxes attributable to TRW		$	6		$	6	$	17	$	20

Inventories

Inventories	9 Months Ended
	Sep. 26, 2014
Inventories [Abstract]	'
Inventories	'
	5. Inventories
		The major classes of inventory are as follows:
				As of
				September 26,		December 31,
				2014		2013
				(Dollars in millions)
		Finished products and work in process		$	522	$	499
		Raw materials and supplies			557		520
			Total inventories	$	1,079	$	1,019

Investment_in_Joint_Venture_Af

Investment in Joint Venture Affiliate	9 Months Ended
	Sep. 26, 2014
Investment in Joint Venture Affiliate [Abtract]	'
Investment in Joint Venture Affiliate [Text Block]	'
	6. Investment in Joint Venture Affiliate
	In the second quarter of 2014, the Company made an initial equity contribution of $6 million in a newly-formed joint venture of which the Company owns a 30% share.  This joint venture will construct and operate a casting foundry in order to eventually supply castings to the Company's North American Braking operations through a long-term supply arrangement.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 26, 2014
Goodwill and Intangible Assets [Abstract]	'
Goodwill and Intangible Assets	'
	7. Goodwill and Intangible Assets
	Goodwill
	The changes in goodwill for the period are as follows:
						Occupant
			Chassis			Safety						Automotive
			Systems			Systems			Electronics			Components
			Segment			Segment			Segment			Segment			Total
			(Dollars in millions)
	Balance as of December 31, 2013		$	1,071		$	541		$	148		$	-		$	1,760
	Effects of foreign currency translation			-			-7			-			-			-7
	Balance as of September 26, 2014		$	1,071		$	534		$	148		$	-		$	1,753
	Intangible assets
		The following table reflects intangible assets and related accumulated amortization:
				As of September 26, 2014									As of December 31, 2013
				Gross						Net			Gross					Net
				Carrying			Accumulated			Carrying			Carrying			Accumulated		Carrying
				Amount			Amortization			Amount			Amount			Amortization		Amount
					(Dollars in millions)
	Definite-lived intangible assets:
		Developed technology and other intangible assets		$	117		$	-93		$	24		$	119		$	-91	$	28
	Indefinite-lived intangible assets:
		Trademarks			264						264			264					264
	Total			$	381					$	288		$	383				$	292
	The Company expects that ongoing amortization expense will approximate the following:
				(Dollars in millions)
		Remainder of 2014		$	1
		Fiscal year 2015			3
		2016 and beyond			20
	The expected amortization expense for 2016 and beyond primarily relates to land use rights.

Other_Income_Expense_Net

Other (Income) Expense - Net	9 Months Ended
	Sep. 26, 2014
Other (Income) Expense - Net [Abstract]	'
Other (Income) Expense - Net	'
	8. Other (Income) Expense — Net
		The following table provides details of other (income) expense — net:
				Three Months Ended				Nine Months Ended
				September 26,		September 27,		September 26,		September 27,
				2014		2013		2014		2013
				(Dollars in millions)
		Net provision for bad debts		$	-	$	2	$	4	$	4
		Net gains on sales of assets and divestitures			-1		-		-1		-1
		Foreign currency exchange (gains) losses			-4		13		9		19
		Royalty and grant income			-7		-7		-16		-13
		Miscellaneous other (income) expense			-1		-3		6		-10
			Other (income) expense — net	$	-13	$	5	$	2	$	-1

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 26, 2014
Income Taxes [Abstract]	'
Income Taxes	'
	9. Income Taxes
	The Company adjusts its effective tax rate each quarter to be consistent with the estimated annual effective tax rate and records the tax impact of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, in the interim period in which they occur.
	Income tax expense for the three months ended September 26, 2014 was $80 million on pre-tax earnings of $278 million, and income tax expense for the nine months ended September 26, 2014 was $250 million on pre-tax earnings of $932 million. Income tax expense for the three months ended September 27, 2013 was $62 million on pre-tax earnings of $268 million, and income tax expense for the nine months ended September 27, 2013 was $221 million on pre-tax earnings of $860 million. Income tax expense for the nine month period ended September 26, 2014 includes a $6 million net tax benefit related to a favorable ruling and the resolution of various tax matters in foreign jurisdictions. Income tax expense for both the three and nine months ended September 27, 2013 includes a tax benefit of $18 million relating to the enactment of tax legislation and reduction in corporate income tax rates in the United Kingdom. Income tax expense for the nine months ended September 27, 2013 also includes a tax benefit of $12 million relating to the enactment of the American Taxpayer Relief Act of 2012 partially offset by a net tax expense of $4 million relating to other matters, resulting in a combined net tax benefit of $26 million for the period. For the periods ended September 26, 2014 and September 27, 2013, the income tax rate varies from the United States statutory income tax rate primarily due to favorable foreign tax rates, holidays, and credits, as well as the effect of the various items noted above.
	The Company operates in multiple jurisdictions throughout the world and the income tax returns of several subsidiaries in various tax jurisdictions are currently under examination. Although it is not possible to predict the timing of the conclusions of all ongoing tax audits with accuracy, it is possible that some or all of these examinations will conclude within the next 12 months. It is also reasonably possible that certain statute of limitations may expire relating to various foreign jurisdictions within the next 12 months. As such, it is possible that a change in the Company's gross unrecognized tax benefits may occur; however, it is not possible to reasonably estimate the potential change in gross unrecognized tax benefits.

Pension_Plans_and_Postretireme

Pension Plans and Postretirement Benefits Other Than Pensions	9 Months Ended
	Sep. 26, 2014
Pension Plans and Postretirement Benefits Other Than Pensions [Abstract]	'
Pension Plans and Postretirement Benefits Other Than Pensions	'
	10. Pension Plans and Postretirement Benefits Other Than Pensions
	Pension Plans
	The following tables provide the components of net pension (income) cost for the Company’s defined benefit pension plans:
		Three Months Ended
		26-Sep-14						27-Sep-13
						Rest of						Rest of
		U.S.		U.K.		World		U.S.		U.K.		World
		(Dollars in millions)
	Service cost	$	-	$	-	$	6	$	1	$	-	$	6
	Interest cost on projected benefit obligations		9		52		10		10		46		9
	Expected return on plan assets		-12		-86		-6		-15		-77		-5
	Amortization		2		-		3		7		-		4
	Settlement		-		-		-		-		-		-1
	Net pension (income) cost	$	-1	$	-34	$	13	$	3	$	-31	$	13
		Nine Months Ended
		26-Sep-14						27-Sep-13
						Rest of						Rest of
		U.S.		U.K.		World		U.S.		U.K.		World
		(Dollars in millions)
	Service cost	$	1	$	-	$	17	$	2	$	-	$	17
	Interest cost on projected benefit obligations		28		157		28		31		140		27
	Expected return on plan assets		-37		-259		-15		-44		-233		-15
	Amortization		6		-		9		20		-		14
	Settlement		-		-		-		-		-		-1
	Net pension (income) cost	$	-2	$	-102	$	39	$	9	$	-93	$	42
	Postretirement Benefits Other Than Pensions ("OPEB")
	The following tables provide the components of net OPEB cost (income) for the Company's plans:
		Three Months Ended
		26-Sep-14				27-Sep-13
				Rest of				Rest of
		U.S.		World		U.S.		World
		(Dollars in millions)
	Service cost	$	-	$	-	$	1	$	-
	Interest cost on projected benefit obligations		4		1		3		1
	Amortization		-2		-1		-3		-1
	Settlement		-		-		-1		-
	Net OPEB cost (income)	$	2	$	-	$	-	$	-
		Nine Months Ended
		26-Sep-14				27-Sep-13
				Rest of				Rest of
		U.S.		World		U.S.		World
		(Dollars in millions)
	Service cost	$	-	$	-	$	1	$	-
	Interest cost on projected benefit obligations	$	12	$	3	$	10	$	3
	Amortization		-7		-4		-10		-3
	Settlement		-		-		-7		-
	Net OPEB cost (income)	$	5	$	-1	$	-6	$	-

Fair_Value_Measurements_and_Fi

Fair Value Measurements and Financial Instruments

9 Months Ended

Sep. 26, 2014

Fair Value Disclosures [Abstract]

'

Fair Value Measurements and Financial Instruments [Text Block]

'

11. Fair Value Measurements and Financial Instruments

The inputs to valuation techniques used to measure fair value are prioritized into a three-level hierarchy. This hierarchy gives the highest priority to quoted prices in active markets for identical assets and liabilities and lowest priority to unobservable inputs, as follows:

Level 1. Inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company can access at the measurement date.

Level 2. Inputs are other than quoted prices that are observable for the asset or liability, either directly or indirectly.

Level 3. Unobservable inputs are supported by little or no market activity. The unobservable inputs represent the Company's best assumptions of how market participants would price the assets or liabilities.

Items Measured at Fair Value on a Recurring Basis

The fair value measurements for assets and liabilities recognized in the Company's condensed consolidated balance sheets are as follows:

As of

26-Sep-14

31-Dec-13

Measurement Approach

(Dollars in millions)

Foreign currency exchange contracts — current assets

$

16

$

6

Level 2

Foreign currency exchange contracts — noncurrent assets

13

-

Level 2

Foreign currency exchange contracts — current liability

3

5

Level 2

Foreign currency exchange contracts — noncurrent liability

2

9

Level 2

The Company's foreign currency exchange contracts are recorded at fair value derived principally from or corroborated by observable market data under the market approach. Inputs include quoted prices for similar assets and liabilities (risk adjusted), and market-corroborated inputs, such as market comparables, interest rates, yield curves and other items that allow value to be determined. The Company uses quoted currency forward rates to calculate forward values, and then discounts the forward values. In addition, the Company's calculation of the fair value of its foreign currency option contracts uses quoted currency volatilities.

The discount rates for all derivative contracts are based on quoted bank deposit rates. For contracts which, when aggregated by counterparty, are in a liability position, the rates are adjusted by the credit spread which market participants would apply if buying these contracts from the Company's counterparties.

There were no changes in the Company's valuation techniques during the nine months ended September 26, 2014.

Items Measured at Fair Value on a Nonrecurring Basis

In addition to items that are measured at fair value on a recurring basis, we also have assets that may be measured at fair value on a nonrecurring basis. These assets include long-lived assets, intangible assets and investments in affiliates, which may be written down to fair value as a result of impairment.

The Company has determined that the fair value measurements related to each of these assets rely primarily on Company-specific inputs and the Company's assumptions about the use of the assets, as observable inputs are not available. As such, the Company has determined that each of these fair value measurements reside within Level 3 of the fair value hierarchy. To determine the fair value of long-lived assets, the Company utilizes the projected cash flows expected to be generated by the long-lived assets, then discounts the future cash flows over the useful life of the long-lived assets by using a risk-adjusted rate for the Company. For the nine months ended September 26, 2014, the Company recorded asset impairments of $12 million associated with its determination of the fair value of its long-lived assets that exhibited indicators of impairment (see Note 13).

Financial Instruments Not Carried at Fair Value

The carrying value and estimated fair value of financial instruments that are not carried on the Company's balance sheet at fair value are as follows:

As of

26-Sep-14

31-Dec-13

Carrying

Fair

Carrying

Fair

Measurement

Value

Value

Value

Value

Approach

(Dollars in millions)

Short-term debt, fixed and floating rate

$

238

$

238

$

159

$

159

Level 2

Fixed rate long-term debt

$

1,349

$

1,442

$

1,821

$

1,884

Level 2

Fixed rate exchangeable notes

$

138

$

502

$

134

$

375

Level 2

The carrying value of short-term debt approximates fair value because of the short term nature of these instruments. The fair value of long term debt was determined primarily from quoted market prices, as provided by participants in the secondary marketplace. For long-term debt without a quoted market price, the Company estimates the fair value using discounted cash flow models with market based borrowing rates for similar types of arrangements.

Derivative Instruments and Hedging Activities

The Company is exposed to fluctuations in foreign currency exchange rates, interest rates and commodity prices. The Company enters into derivative instruments primarily to hedge portions of its forecasted foreign currency denominated cash flows and designates these derivative instruments as cash flow hedges in order to qualify for hedge accounting. Certain foreign exchange contracts that do not qualify for hedge accounting are entered into to hedge recognized foreign currency transactions. All gains or losses on derivative instruments which are not designated for hedge accounting treatment or do not qualify for hedge accounting, or result from hedge ineffectiveness, are reported in earnings immediately.

In addition, the Company is exposed to credit loss in the event of nonperformance by the counterparty to the derivative financial instruments. The Company attempts to limit this exposure by entering into agreements directly with a number of major financial institutions that meet the Company's credit standards and that are expected to fully satisfy their obligations under the contracts, and by monitoring the Company's credit exposure to each counterparty in light of its current credit quality.

As of September 26, 2014, the Company had a notional value of $2.8 billion in foreign exchange contracts outstanding. These foreign exchange contracts mature at various dates through September 2017.

Cash Flow Hedges. For any derivative instrument that is designated and qualifies as a cash flow hedge, the effective portion of the gain or loss on the derivative is reported as a component of Other Comprehensive Income (“OCI”), and is subsequently reclassified into earnings in the period which the hedged transaction affects earnings. The earnings impact is reported either in sales, cost of sales, or other (income) expense ‒ net, to match the underlying transaction. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness, which were immaterial for each of the three and nine months ended September 26, 2014 and September 27, 2013, are recognized in other (income) expense ‒ net.

The effective portion of gains and losses on derivatives designated as cash flow hedges and recognized in OCI was a gain of $8 million and $33 million for the three and nine months ended September 26, 2014, respectively, compared to a gain of $22 million and a loss of $11 million for the three and nine months ended September 27, 2013, respectively, all of which were related to foreign currency exchange contracts.

The effective portion of gains and losses on cash flow hedges reclassified from OCI into the statement of earnings for the three and nine months ended September 26, 2014 was a gain of $1 million and a loss of $4 million, respectively, and was included in various line items on the statement of earnings, compared to a de minimis amount and a gain of $1 million, respectively, for the three and nine months ended September 27, 2013.

Gains and losses reclassified into earnings include the discontinuance of cash flow hedges, which were immaterial for each of the three and nine months ended September 26, 2014 and September 27, 2013. Approximately $9 million of gains, net of tax, which are included in OCI, are expected to be reclassified into earnings in the next twelve months.

Undesignated Derivatives. For the three and nine months ended September 26, 2014, the Company recognized gains of $13 million and $16 million, respectively, in other (income) expense ‒ net, for derivative instruments not designated as hedging instruments. For the three and nine months ended September 27, 2013, the Company recognized losses of a de minimis amount and $3 million, respectively, in other (income) expense ‒ net, for derivative instruments not designated as hedging instruments.

Credit-Risk-Related Contingent Features. The Company has entered into International Swaps and Derivatives Association (“ISDA”) agreements with each of its significant derivative counterparties. These agreements provide bilateral netting and offsetting of accounts that are in a liability position with those that are in an asset position. These agreements do not require the Company to maintain a minimum credit rating in order to be in compliance with the terms of the agreements and do not contain any margin call provisions or collateral requirements that could be triggered by derivative instruments in a net liability position. These agreements provide for an additional termination event if the Company's Eighth Amended and Restated Credit Agreement dated September 28, 2012 (the “Eighth Credit Agreement”) is terminated or a change of control occurs under the Eighth Credit Agreement. The ZF Merger, if consummated, is expected to cause an additional termination event under these agreements. The occurrence of an additional termination event would allow the Company and each of the counterparties to request cancellation and settlement of the mark-to-market position for any outstanding derivative contracts, regardless of the maturity date of the contract.

Offsetting of Derivative Assets and Liabilities

The following table reflects the offsetting of derivative assets and liabilities:

As of September 26, 2014

As of December 31, 2013

Gross Amounts Recognized

Gross Amounts Offset

Net Amounts Reported

Gross Amounts Recognized

Gross Amounts Offset

Net Amounts Reported

(Dollars in millions)

Derivative Assets:

Foreign Currency

$

58

$

-29

$

29

$

42

$

-36

$

6

Derivative Liabilities:

Foreign Currency

34

-29

5

50

-36

14

Debt

Debt	9 Months Ended
	Sep. 26, 2014
Debt [Abstract]	'
Debt	'
	12. Debt
	Total outstanding debt of the Company consisted of the following:
				As of
				September 26,		December 31,
				2014		2013
				(Dollars in millions)
		Short-term debt		$	238	$	159
		Long-term debt:
		6.375% Senior Notes, due 2014		$	-	$	234
		7.00% Senior Notes, due 2014			-		233
		7.25% Senior Notes, due 2017			445		446
		4.50% Senior Notes, due 2021			400		400
		4.45% Senior Notes, due 2023			400		400
		Exchangeable senior notes, due 2015			138		134
		Revolving credit facility			-		-
		Capitalized leases			15		18
		Other long-term borrowings			89		90
			Total long-term debt		1,487		1,955
		Less current portion			35		482
			Long-term debt, net of current portion	$	1,452	$	1,473
	Senior Notes
	4.45% Senior Notes. In November 2013, the Company issued $400 million in aggregate principal amount of 4.45% senior unsecured notes due 2023 in a private placement. Interest is payable semi-annually on December 1 and June 1 of each year.
	4.50% Senior Notes. In February 2013, the Company issued $400 million in aggregate principal amount of 4.50% senior unsecured notes due 2021 in a private placement. Interest is payable semi-annually on March 1 and September 1 of each year.
	7.25% Senior Notes. In March 2007, the Company issued $600 million in aggregate principal amount of 7.25% senior unsecured notes due 2017 in a private placement. Interest is payable semi-annually on March 15 and September 15 of each year.
	6.375% Senior Notes and 7.00% Senior Notes Issued in 2007. On March 15, 2014, the 6.375% Senior Notes and 7.00% Senior Notes matured and the Company paid the principal amounts outstanding of €170 million and $233 million, respectively.
	Exchangeable Senior Notes
	In November 2009, the Company issued approximately $259 million in aggregate principal amount of 3.50% exchangeable senior unsecured notes due 2015 (the “Exchangeable Senior Notes”) in a private placement. Prior to September 1, 2015, the notes are exchangeable only upon specified events or conditions being met and, thereafter, at any time. One condition was met as of September 26, 2014, and as such, the notes are exchangeable in the fourth quarter of 2014. They will remain exchangeable in subsequent quarters if the condition continues to be met, which occurs if the last reported sale price of the Company's common stock for at least 20 of the last 30 trading days of the immediately preceding quarter is greater than $38.415, subject to adjustment. The initial exchange rate is 33.8392 shares of the Company's common stock per $1,000 principal amount of notes. The Company's exchange obligation may be settled, at its option, in shares of its stock, cash or a combination of cash and shares of its stock. Interest is payable on June 1 and December 1 of each year. The Exchangeable Senior Notes will mature on December 1, 2015, unless earlier exchanged, repurchased by the Company at the holder's option upon a fundamental change, or optionally redeemed by the Company as provided in the indenture.
	The Exchangeable Senior Notes were recorded with a debt discount which decreased debt and increased paid-in-capital in order to separate the liability and embedded equity components. The debt component will accrete up to the principal amount to effectively yield 9.0% over the term of the debt. The debt discount as of September 26, 2014 and December 31, 2013 was $9 million and $14 million, respectively. The total interest expense recognized for the three and nine months ended September 26, 2014 was approximately $3 million and $9 million, respectively, including $1 million and $4 million in each respective period relating to the stated coupon rate. The total interest expense recognized for the three and nine months ended September 27, 2013 was approximately $3 million and $10 million, respectively, including $2 million and $5 million in each respective period relating to the stated coupon rate.
	In the third quarter of 2014, Exchangeable Senior Notes in principal amount of approximately $1 million were exchanged for approximately 34,000 shares of common stock. A de minimis loss on retirement of debt was recorded relating to the write-off of a portion of debt issue costs and the debt discount, as well as a reduction of $2 million to paid-in-capital relating to the repurchase of the conversion feature of the Exchangeable Senior Notes. The repurchased notes were retired upon settlement.
	Senior Credit Facilities
	The Eighth Credit Agreement provides for senior credit facilities consisting of (i) a revolving credit facility in the amount of $1.4 billion which matures in September 2017, subject to certain liquidity conditions being met in October 2016 (the “Revolving Credit Facility”), and (ii) additional availability which may be used in the future for one or more term loans or additional revolving facilities (together with the Revolving Credit Facility, the “Facilities”). All of the Facilities were undrawn as of September 26, 2014.
	The commitment fee and the applicable margin for borrowing on the Revolving Credit Facility are subject to a ratings-based grid. The applicable margin in effect as of September 26, 2014 was 0.25% with respect to base rate borrowings, 1.25% with respect to eurocurrency borrowings, and the commitment fee on the undrawn amounts under the Revolving Credit Facility was 0.25%.
	Other Borrowings
	The Company has borrowings under uncommitted credit agreements in several of the countries in which it operates. The borrowings are from various individual banks at quoted market interest rates. As of September 26, 2014, the Company had short-term borrowings under uncommitted credit facilities totaling $232 million.
	Debt Repurchases
	As market conditions warrant, the Company may from time to time repurchase debt securities, including exchangeable debt securities, issued by the Company or its subsidiaries, in privately negotiated or open market transactions, by tender offer, exchange offer, or by other means, or the Company may optionally redeem such debt securities.
	Debt Covenants Potentially Impacted by the ZF Merger
	The ZF Merger, if consummated, is expected to cause a change of control triggering event as defined in the Company's respective Senior Note indentures and a fundamental change as defined in the Exchangeable Senior Note indenture. In general, upon the occurrence of a change of control triggering event under the Senior Note indentures, the Company is required to offer to repurchase the Senior Notes, for a certain period of time, at a price of 101% of par, plus accrued and unpaid interest. Upon the occurrence of a fundamental change under the Exchangeable Senior Note indenture, the Company is required to offer to repurchase the Exchangeable Senior Notes, for a certain period of time, at a price of 100% of par, plus accrued and unpaid interest. Additionally, assuming the ZF Merger is consummated, the Company anticipates terminating the Eighth Credit Agreement.

Restructuring_Charges_and_Asse

Restructuring Charges and Asset Impairments	9 Months Ended
	Sep. 26, 2014
Restructuring Charges And Asset Impairments [Abstract]	'
Restructuring Charges and Asset Impairments	'
	13. Restructuring Charges and Asset Impairments
	Restructuring charges and asset impairments incurred as part of the Company's ongoing effort to better align the Company's cost structure with global automotive market conditions, primarily in the European and North American automotive markets, include the following:
						Occupant
				Chassis		Safety				Automotive
				Systems		Systems		Electronics		Components
				Segment		Segment		Segment		Segment		Corporate		Total
				(Dollars in millions)
	For the three months ended September 26, 2014:
		Severance and other charges - net		$	2	$	6	$	-	$	2	$	-	$	10
		Total restructuring charges and asset impairments		$	2	$	6	$	-	$	2	$	-	$	10
	For the three months ended September 27, 2013:
		Severance and other charges		$	-	$	2	$	-	$	-	$	-	$	2
		Other asset impairments			3		-		-		-		-		3
		Total restructuring charges and asset impairments		$	3	$	2	$	-	$	-	$	-	$	5
	For the nine months ended September 26, 2014:
		Severance and other charges - net		$	12	$	8	$	-	$	4	$	-	$	24
		Asset impairments related to restructuring activities			12		-		-		-		-		12
		Total restructuring charges and asset impairments		$	24	$	8	$	-	$	4	$	-	$	36
	For the nine months ended September 27, 2013:
		Severance and other charges		$	17	$	29	$	-	$	-6	$	-	$	40
		Other asset impairments			3		-		-		-		-		3
		Total restructuring charges and asset impairments		$	20	$	29	$	-	$	-6	$	-	$	43
	Restructuring Reserves
	The following table illustrates the movement of the restructuring reserves for severance and other charges, including reserves related to severance-related postemployment benefits for both periods presented:
				Nine Months Ended
				September 26,		September 27,
				2014		2013
				(Dollars in millions)
		Beginning balance		$	88	$	121
			Current period accruals, net of changes in estimates		24		40
			Accruals related to divestitures		-3		-
			Used for purposes intended		-49		-64
			Effects of foreign currency translation		-6		3
		Ending balance		$	54	$	100
	Of the $54 million restructuring reserves as of September 26, 2014, approximately $21 million is expected to be paid in the remainder of 2014. The remaining balance is expected to be paid in 2015 to 2016 and is comprised primarily of involuntary employee termination arrangements in Europe.

Transaction_Costs

Transaction Costs	9 Months Ended
	Sep. 26, 2014
Transaction Costs [Abstract]	'
Transaction Costs [Text Block]	'
	14. Transaction Costs
	The Company incurred transaction and merger-related costs of $13 million for financial advisory and legal fees related to the ZF Merger (see Note 2) and the engine valve divestiture (see Note 4) for both the three and nine months ended September 26, 2014.

Capital_Stock

Capital Stock	9 Months Ended
	Sep. 26, 2014
Capital Stock [Abstract]	'
Capital Stock	'
	15. Capital Stock
	The Company's authorized capital stock consists of (i) 500 million shares of common stock, par value $.01 per share (the “Common Stock”), of which 110,628,893 shares were issued and outstanding as of September 26, 2014, net of 4,668 shares of treasury stock withheld at cost to satisfy tax obligations for a specific grant under the Company's stock-based compensation plan; and (ii) 250 million shares of preferred stock, par value $.01 per share, including 500,000 shares of Series A junior participating preferred stock, of which no shares are currently issued or outstanding.
	From time to time, capital stock is issued in conjunction with the exercise of stock options and stock-settled stock appreciation rights and the vesting of restricted stock units issued as part of the Company's stock incentive plan (see Note 16).
	Share Repurchase Programs. The Company has two share repurchase programs in place, consisting of a $2 billion program that extends through December 31, 2016 (the “$2 Billion Program”), and a program that is intended to offset, on an ongoing basis, the dilution created by the Company's stock incentive plan for up to 1.5 million shares in 2014 and each subsequent year (the “Anti-Dilution Program”). The Anti-Dilution program does not have an expiration date. The Company is not obligated to repurchase any shares under either program.
	In the first quarter of 2014, the Company entered into an accelerated share repurchase (“ASR”) agreement with a third-party financial institution to repurchase the Company's common stock. Under the ASR agreement, the Company made an up-front payment of $400 million and received an initial delivery of approximately 3.9 million shares in the first quarter of 2014. Upon settlement in the third quarter of 2014, the Company received approximately 0.7 million additional shares, resulting in an overall weighted average price per share of $88.08 under the ASR agreement.
	Pursuant to the terms of the Merger Agreement with ZF, the Company is restricted from repurchasing additional shares of its common stock under the share repurchase programs without ZF's consent.

ShareBased_Compensation

Share-Based Compensation	9 Months Ended
	Sep. 26, 2014
Share-Based Compensation [Abstract]	'
Share-Based Compensation	'
	16. Share-Based Compensation
	Equity Awards
	On February 21, 2014, the Company granted 850,900 SSARs to executive officers and certain employees of the Company pursuant to the TRW Automotive Holdings Corp. 2012 Stock Incentive Plan (the “2012 Plan”). Under the terms of the grant, each SSAR entitles the grantee to receive the appreciation in value of one underlying share of the Company's stock from the grant date fair market value of $82.50 to the fair market value on the exercise date, although the stock price at exercise is limited to a maximum value of $130.00.
	On February 21, 2014, the Company also granted 284,723 RSUs to executive officers and certain employees of the Company pursuant to the 2012 Plan and 3,365 PSUs to certain other employees of the Company. Under the terms of the grant, each PSU entitles the grantee to receive a cash payment upon vesting equal to the fair market value on the vesting date of one share of the Company's common stock.
	In addition, on February 21, 2014, the Company granted 46,949 Performance Units to executive officers. Under the terms of the grant, the number of Performance Units that would be earned would be based on the Company's achievement of total shareholder return (“TSR”) over a three-year period relative to automotive parts companies within the Russell 3000 Index.
	On May 13, 2014, the Company granted 14,742 RSUs to independent directors of the Company pursuant to the 2012 Plan.
	As of September 26, 2014, the Company had 3,352,143 shares of Common Stock available for issuance under the 2012 Plan. In addition, 231,547 stock options, 2,342,149 SSARs, 690,692 nonvested RSUs, 12,650 nonvested PSUs and 46,949 nonvested Performance Units were outstanding as of September 26, 2014. Under the terms of the respective grants, all of the SSARs and stock options have an 8-year term and vest ratably over three years, substantially all of the RSUs vest ratably over three years and a majority of the PSUs cliff vest after three years. As a result of changes to retirement provisions in the equity award agreements beginning in 2013, the Company applies a non-substantive vesting period approach for certain of the awards granted in 2014 and 2013 whereby expense is accelerated for those employees who receive awards and are eligible to retire prior to the award vesting.
	Share-based compensation expense recognized for the Plan was as follows:
			Three Months Ended				Nine Months Ended
			September 26,		September 27,		September 26,		September 27,
			2014		2013		2014		2013
			(Dollars in millions)
	Stock options and SSARs		$	3	$	3	$	8	$	9
	RSUs			7		6		19		21
	Performance Units			1		-		3		-
		Total share-based compensation expense	$	11	$	9	$	30	$	30
	Potential Impact of the ZF Merger on Equity Awards
	If consummated, at the effective time of the ZF Merger, (i) all then-outstanding Company stock options, RSUs, PSUs and Performance Units (which will vest at the “maximum level” of performance), whether vested or unvested, will be converted into the right to receive the Merger Consideration, less the exercise price of such awards, if any, and (ii) all then-outstanding Company SSARs, whether vested or unvested, will be converted into the right to receive an amount in cash equal to the excess of the lesser of the Merger Consideration and the “maximum value” of such stock appreciation right over the fair market value per share at the relevant grant date.

Contingencies

Contingencies	9 Months Ended
	Sep. 26, 2014
Contingencies [Abstract]	'
Contingencies	'
	17. Contingencies
	Various claims, lawsuits and administrative proceedings are pending or threatened against the Company or its subsidiaries, covering a wide range of matters that arise in the ordinary course of the Company's business activities with respect to commercial, patent, product liability, environmental and occupational safety and health law matters. In addition, the Company and its subsidiaries are conducting a number of environmental investigations and remedial actions at current and former locations of certain of the Company's subsidiaries. Along with other companies, certain subsidiaries of the Company have been named potentially responsible parties for certain waste management sites. Each of these matters is subject to various uncertainties, and some of these matters may be resolved unfavorably with respect to the Company or the relevant subsidiary. A reserve estimate for each environmental matter is established using standard engineering cost estimating techniques on an undiscounted basis. In the determination of such costs, consideration is given to the professional judgment of Company environmental engineers, in consultation with outside environmental specialists, when necessary. At multi-party sites, the reserve estimate also reflects the expected allocation of total project costs among the various potentially responsible parties.
	As of September 26, 2014, the Company had reserves for environmental matters of $77 million. In addition, the Company has established a receivable for a portion of this environmental liability as a result of its right to indemnification for 50% of any environmental liabilities associated with the operation or ownership of the Company's automotive business existing at or prior to March 2003. The Company believes any liability, in excess of amounts accrued in its financial statements, that may result from the resolution of environmental matters for which sufficient information is available to support these cost estimates, will not have a material adverse effect on the Company's financial position, results of operations or cash flows.
	The Company faces an inherent business risk of exposure to product liability, recall and warranty claims in the event that its products actually or allegedly fail to perform as expected or the use of its products results, or is alleged to result, in bodily injury and/or property damage. Accordingly, the Company could experience material warranty, recall or product liability losses in the future. For further information, including quantification of the Company's product warranty liability, see the description of “Warranties” in Note 3.
	While certain of the Company's subsidiaries have been subject in recent years to asbestos-related claims, management believes that such claims will not have a material adverse effect on the Company's financial statements. In general, these claims seek damages for illnesses alleged to have resulted from exposure to asbestos used in certain components sold in the past by the Company's subsidiaries. Management believes that the majority of the claimants were vehicle mechanics. The vast majority of these claims name as defendants numerous manufacturers and suppliers of a variety of products allegedly containing asbestos. Management believes that, to the extent any of the products sold by the Company's subsidiaries and at issue in these cases contained asbestos, the asbestos was encapsulated. Based upon several years of experience with such claims, management believes that only a small proportion of the claimants has or will ever develop any asbestos-related illness.
	Neither settlement costs in connection with asbestos claims nor annual legal fees to defend these claims have been material in the past. These claims are strongly disputed by the Company and it has been its policy to defend against them aggressively. Many of these cases have been dismissed without any payment whatsoever. Moreover, there is significant insurance coverage with solvent carriers with respect to these claims. However, while costs to defend and settle these claims in the past have not been material, there can be no assurances that this will remain so in the future.
	Management believes that the ultimate resolution of the foregoing contingencies will not have a material effect on the Company's financial statements as a whole.
	Antitrust Matters
	Antitrust authorities, including those in the United States and Europe, are investigating possible violations of competition (antitrust) laws by automotive parts suppliers (referred to herein as the “Antitrust Investigations”). The U.S. Department of Justice (“DOJ”) initiated an investigation into the Company's Occupant Safety Systems business in June 2011, which was concluded in 2012 when the court approved a plea agreement between one of the Company's German subsidiaries and the DOJ. Also in June 2011, the European Commission initiated an Antitrust Investigation which includes the Company, among others, and which is ongoing. While the duration and outcome of the European Commission's investigation is uncertain, a determination that the Company has violated European competition (antitrust) laws could result in significant penalties which could have a material adverse effect on its financial condition, results of operations and cash flows, as well as its reputation. While the Company cannot estimate the ultimate financial impact resulting from the European investigation, it will continue to evaluate developments in this matter on a regular basis and will record an accrual as and when appropriate.
	The Company's policy is to comply with all laws and regulations, including all antitrust and competition laws. The Company is cooperating fully with the competition authorities in the context of their ongoing investigations.
	The Company has settled, for an amount that is immaterial to the Company, certain purported class action lawsuits filed on behalf of vehicle purchasers, lessors and dealers, alleging that the Company and certain of its competitors conspired to fix and raise prices for Occupant Safety Systems products. These lawsuits were filed on various dates from June 2012 through July 2013 and were consolidated in the United States District Court for the Eastern District of Michigan. Once the court approves the settlements, those cases will be dismissed. The Company has also settled, for an amount that is immaterial to the Company, similar cases filed in various courts in Canada on behalf of vehicle purchasers, lessors, dealers and direct purchasers. Class action lawsuits filed against the Company on various dates from June 2012 through May 2014 in the United States District Court for the Eastern District of Michigan on behalf of direct purchasers remain pending, which the Company intends to vigorously defend. Management believes that the ultimate resolution of those cases will not have a material adverse effect on the Company's financial condition, results of operations or cash flows.
	Transaction Litigation
	Following the announcement of the execution of the Merger Agreement on September 15, 2014, seven purported stockholders of the Company initiated legal actions challenging the merger.  On September 19, 2014, purported stockholder New Jersey Laborers Pension Fund filed a putative class action complaint in the Oakland County Circuit Court in the State of Michigan against the Company, ZF, ZNA, Merger Sub, and the members of the Company's board of directors (the “Company Board”), in an action styled New Jersey Laborers Pension Fund vs. TRW Automotive Holdings Corp., et al., No. 2014-143032-CB.  On September 26, 2014, purported stockholder Joseph Bidwell filed a putative class action complaint in the Wayne County Circuit Court in the State of Michigan against the Company, ZF, ZNA, Merger Sub, and the members of the Company Board, in an action styled Bidwell vs. TRW Automotive Holdings Corp., et al., No. 14-012463-CB.  On October 3, 2014, purported stockholder Daniel Fumia filed a putative class action complaint in Wayne County Circuit Court in the State of Michigan against the Company, ZF, ZNA, Merger Sub, and the members of the Company Board, in an action styled Daniel Fumia v. James F. Albaugh, Francois J. Castaing, Robert L. Friedman, Michael R. Gambrell, J. Michael Losh, David W. Meline, Jody G. Miller, MSNA, Inc., John C. Plant, Neil P. Simpkins, David S. Taylor, TRW Automotive Holdings Corp., ZF Friedrichshafen AG, ZF North America, Inc., No. 14-012818-CB. On October 6, 2014, purported stockholder Alan Abramson filed a putative class action complaint in the Court of Chancery of the State of Delaware against the Company, the members of the Company Board, ZF and Merger Sub, in an action styled Abramson vs. TRW Automotive Holdings Corp., et al., No. 10203-VCL. On October 15, 2014, purported stockholder Zhao Nie filed a putative class action complaint in the Court of Chancery of the State of Delaware against the Company, ZF, ZNA, Merger Sub and the Company Board in an action styled Nie vs. TRW Automotive Holdings Corp., et al., No. 10236-VCL. On October 21, 2014, purported stockholder Luther Berry and purported stockholder I.U.O.E. Local 132 Health and Welfare Fund each filed a putative class action complaint in the Court of Chancery of the State of Delaware against the Company, the members of the Company Board, ZF and Merger Sub, in actions styled Berry vs. TRW Automotive Holdings Corp., et al., No. 10264-VCL and I.U.O.E. Local 132 Health and Welfare Fund vs. TRW Automotive Holdings Corp., et al., No. 10265-VCL, respectively. The complaints include claims for breach of fiduciary duty against the individual directors, alleging that the directors violated the duties of loyalty, good faith and due care owed to the Company's stockholders. The complaints also include claims for aiding and abetting breaches of fiduciary duty. The plaintiffs seek, among other forms of relief, an order enjoining the transaction, rescinding the Merger Agreement to the extent it has already been implemented, and awarding attorneys' fees and costs.
	Although it is not possible to predict the outcome of these litigation matters with certainty, the Company and the Company Board believe that the claims raised in these complaints are without merit and intend to defend their position in these matters vigorously.  The lawsuits are in their early stages. Management believes that the ultimate resolution of the foregoing legal actions will not have a material effect on the Company's financial statements as a whole.

Segment_Information

Segment Information	9 Months Ended
	Sep. 26, 2014
Segment Information [Abstract]	'
Segment Information	'
	18. Segment Information
	The following tables present certain financial information by segment:
				Three Months Ended				Nine Months Ended
				September 26,		September 27,		September 26,		September 27,
				2014		2013		2014		2013
				(Dollars in millions)
		Sales to external customers:
			Chassis Systems	$	2,684	$	2,802	$	8,509	$	8,512
			Occupant Safety Systems		787		785		2,557		2,485
			Electronics		233		172		693		518
			Automotive Components		452		453		1,432		1,424
		Total sales to external customers		$	4,156	$	4,212	$	13,191	$	12,939
		Intersegment sales:
			Chassis Systems	$	5	$	4	$	12	$	12
			Occupant Safety Systems		37		32		112		98
			Electronics		168		134		461		406
			Automotive Components		18		18		56		55
		Total intersegment sales		$	228	$	188	$	641	$	571
		Total segment sales:
			Chassis Systems	$	2,689	$	2,806	$	8,521	$	8,524
			Occupant Safety Systems		824		817		2,669		2,583
			Electronics		401		306		1,154		924
			Automotive Components		470		471		1,488		1,479
		Total segment sales		$	4,384	$	4,400	$	13,832	$	13,510
		Earnings before taxes:
			Chassis Systems	$	213	$	188	$	648	$	600
			Occupant Safety Systems		62		63		216		175
			Electronics		34		28		106		86
			Automotive Components		32		31		114		119
		Segment earnings before taxes			341		310		1,084		980
		Corporate expense and other			-47		-18		-99		-50
		Financing costs			-25		-33		-82		-97
		Loss on retirement of debt — net			-		-		-		-5
		Net earnings attributable to noncontrolling interest, net of tax			9		9		29		32
			Earnings before income taxes	$	278	$	268	$	932	$	860
		See Note 13 for a summary of restructuring charges and asset impairments by segment.

Basis_of_Presentation_Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 26, 2014
Basis of Presentation [Abstract]	'
Earnings (Losses) Per Share	'
	Earnings Per Share. Basic earnings per share are calculated by dividing net earnings by the weighted average shares outstanding during the period. Diluted earnings per share reflect the weighted average impact of all potentially dilutive securities from the date of issuance, including stock options, RSUs, SSARs and Performance Units. Further, if the inclusion of shares potentially issuable for the Company's 3.50% exchangeable senior unsecured notes (see Note 12) is more dilutive than the inclusion of the interest expense for those exchangeable notes, the Company utilizes the “if-converted” method to calculate diluted earnings per share. Under the if-converted method, the Company adjusts net earnings to add back interest expense and amortization of the discount recognized on the exchangeable notes and includes the number of shares potentially issuable related to the exchangeable notes in the weighted average shares outstanding.
	If the average market price of the Company's common stock exceeds the exercise price of stock options outstanding or the fair value on the date of grant of the SSARs, the treasury stock method is used to determine the incremental number of shares to be included in the diluted earnings per share computation.
Warranties	'
	Warranties. Product warranty liabilities are recorded based upon management estimates including such factors as the written agreement with the customer, the length of the warranty period, the historical performance of the product and likely changes in performance of newer products and the mix and volume of products sold. Product warranty liabilities are reviewed on a regular basis and adjusted to reflect actual experience.
Recently Issued Accounting Pronouncements	'
	Recently Issued Accounting Pronouncements. In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers (Topic 606),” which provides a single revenue recognition model intended to improve comparability over a range of industries, companies and geographical boundaries and is intended to enhance disclosures.  The standard is effective retrospectively for fiscal years (and interim reporting periods within those years) beginning after December 15, 2016. Early adoption is not permitted. The Company is currently assessing the potential impact on its operations and financial statements.
	In August 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements – Going Concern (Subtopic 205-40),” which requires management to evaluate, at each annual and interim reporting period, whether there is substantial doubt about the Company's ability to continue as a going concern within one year after the date the financial statements are issued and provide related footnote disclosures. The standard is effective for the annual period ending after December 15, 2016 and for the annual and interim periods thereafter. Early adoption is permitted. This standard is not expected to have a material impact on the Company's financial statements.

Basis_of_Presentation_Tables

Basis of Presentation (Tables)	9 Months Ended
	Sep. 26, 2014
Basis of Presentation [Abstract]	'
Net Earnings (Losses) Attributable to TRW and the Weighted Average Shares Outstanding [Table Text Block]	'
	Net earnings attributable to TRW and the weighted average shares outstanding used in calculating basic and diluted earnings per share were:
				Three Months Ended							Nine Months Ended
				September 26,				September 27,			September 26,			September 27,
				2014				2013			2014			2013
				(In millions, except per share amounts)
		Net earnings attributable to TRW		$	189			$	197		$	653		$	607
		Interest expense on exchangeable notes, net of tax			-				1			2			3
		Amortization of discount on exchangeable notes, net of tax			1				1			3			3
		Net earnings attributable to TRW for purposes of calculating diluted earnings per share		$	190			$	199		$	658		$	613
		Basic:
			Weighted average shares outstanding		111.1				117			111.7			118.5
			Basic earnings per share	$	1.7			$	1.68		$	5.85		$	5.12
		Diluted:
			Weighted average shares outstanding		111.1				117			111.7			118.5
			Effect of dilutive stock options, RSUs and SSARs		1.7				1.3			1.6			1.2
			Shares applicable to exchangeable notes		5				5.9			5			5.9
			Diluted weighted average shares outstanding		117.8				124.2			118.3			125.6
			Diluted earnings per share	$	1.61			$	1.6		$	5.56		$	4.88
Movement in the Product Warranty Liability [Table Text Block]	'
		The following table presents the movement in the product warranty liability for the periods indicated:
				Nine Months Ended
				September 26,				September 27,
				2014				2013
				(Dollars in millions)
		Beginning balance		$	152			$	140
		Current period accruals, net of changes in estimates			33				44
		Accruals related to divestitures			-2				-
		Used for purposes intended			-28				-30
		Effects of foreign currency translation			-5				-1
		Ending balance		$	150			$	153
Changes in Equity [Table Text Block]	'
	Equity. The following tables present a rollforward of the changes in equity attributable to TRW shareholders and to the noncontrolling interest.
				Three Months Ended
				26-Sep-14										27-Sep-13
				Total				TRW Shareholders			Noncontrolling Interest			Total		TRW Shareholders		Noncontrolling Interest
				(Dollars in millions)
	Beginning balance of equity			$	4,539			$	4,324		$	215		$	3,853	$	3,654	$	199
	Net earnings				198				189			9			206		197		9
	Other comprehensive (losses) earnings				-131				-130			-1			81		78		3
	Changes related to share-based compensation				-17				-17			-			19		19		-
	Repurchase of capital stock				-				-			-			-260		-260		-
	Ending balance of equity			$	4,589			$	4,366		$	223		$	3,899	$	3,688	$	211
				Nine Months Ended
				26-Sep-14										27-Sep-13
				Total				TRW Shareholders			Noncontrolling Interest			Total		TRW Shareholders		Noncontrolling Interest
				(Dollars in millions)
	Beginning balance of equity			$	4,396			$	4,194		$	202		$	3,769	$	3,578	$	191
	Net earnings				682				653			29			639		607		32
	Other comprehensive (losses) earnings				-75				-70			-5			-80		-83		3
	Dividends paid to noncontrolling interest				-3				-			-3			-15		-		-15
	Changes related to share-based compensation				-11				-11			-			46		46		-
	Repurchase of capital stock				-400				-400			-			-460		-460		-
	Ending balance of equity			$	4,589			$	4,366		$	223		$	3,899	$	3,688	$	211
Schedule Of Accumulated Other Comprehensive Income Loss [Table Text Block]	'
	The following tables present changes in accumulated other comprehensive earnings (losses) attributable to TRW by component:
						Foreign Currency Translation			Retirement Obligations		Deferred Cash Flow Hedges		Total
						(Dollars in millions)
	For the three months ended September 26, 2014:
	Beginning balance attributable to TRW, net of tax					$	78		$	-406	$	8	$	-320
			Other comprehensive (losses) earnings before reclassifications, net of tax				-152			14		7		-131
			Amounts reclassified from accumulated other comprehensive earnings, net of tax				-			1(a)		-		1
	Other comprehensive (losses) earnings, net of tax						-152			15		7		-130
	Ending balance attributable to TRW, net of tax					$	-74		$	-391	$	15	$	-450
	For the three months ended September 27, 2013:
	Beginning balance attributable to TRW, net of tax					$	-34		$	-577	$	-16	$	-627
			Other comprehensive earnings (losses) before reclassifications, net of tax				67			-10		16		73
			Amounts reclassified from accumulated other comprehensive earnings (losses), net of tax				-			5(b)		-		5
	Other comprehensive earnings (losses), net of tax						67			-5		16		78
	Ending balance attributable to TRW, net of tax					$	33		$	-582	$	-	$	-549
	(a)		Includes actuarial gains of $4 million, reduced by prior service cost of $3 million, net of tax of a de minimis amount.
	(b)		Includes actuarial gains of $11 million, reduced by prior service cost of $4 million, net of tax of $2 million.
						Foreign Currency Translation			Retirement Obligations		Deferred Cash Flow Hedges		Total
						(Dollars in millions)
	For the nine months ended September 26, 2014:
	Beginning balance attributable to TRW, net of tax					$	41		$	-405	$	-16	$	-380
			Other comprehensive (losses) earnings before reclassifications, net of tax				-115			11		27		-77
			Amounts reclassified from accumulated other comprehensive earnings, net of tax				-			3(a)		4		7
	Other comprehensive (losses) earnings, net of tax						-115			14		31		-70
	Ending balance attributable to TRW, net of tax					$	-74		$	-391	$	15	$	-450
	For the nine months ended September 27, 2013:
	Beginning balance attributable to TRW, net of tax					$	83		$	-559	$	10	$	-466
			Other comprehensive losses before reclassifications, net of tax				-50			-37		-9		-96
			Amounts reclassified from accumulated other comprehensive earnings (losses), net of tax				-			14(b)		-1		13
	Other comprehensive losses, net of tax						-50			-23		-10		-83
	Ending balance attributable to TRW, net of tax					$	33		$	-582	$	-	$	-549
	(a)		Includes actuarial gains of $13 million, reduced by prior service cost of $9 million, net of tax of $1 million.
	(b)		Includes actuarial gains of $33 million, reduced by prior service cost of $13 million, net of tax of $6 million.

Assets_Held_for_Sale_Tables

Assets Held for Sale (Tables)	9 Months Ended
	Sep. 26, 2014
Assets Held for Sale [Abstract]	'
Schedule of Assets and Liabilities Held for Sale [Table Text Block]	'
					As of
					26-Sep-14
					(Dollars in millions)
		Cash			$	13
		Accounts receivable — net				25
		Inventories				48
		Prepaid expenses and other current assets				7
		Property, plant and equipment — net				157
		Other assets				11
			Total assets held-for-sale		$	261
		Trade accounts payable			$	23
		Accrued compensation				20
		Other current liabilities				24
		Pension benefits				33
			Total liabilities related to assets held-for-sale		$	100
	Earnings before income taxes for the engine valve business were as follows:
				Three Months Ended					Nine Months Ended
				September 26,			September 27,		September 26,		September 27,
				2014			2013		2014		2013
				(Dollars in millions)
	Earnings before income taxes			$	7		$	7	$	20	$	24
	Less: Earnings attributable to noncontrolling interest				1			1		3		4
		Earnings before income taxes attributable to TRW		$	6		$	6	$	17	$	20

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Sep. 26, 2014
Inventories [Abstract]	'
Major Classes of Inventory [Table Text Block]	'
	5. Inventories
		The major classes of inventory are as follows:
				As of
				September 26,		December 31,
				2014		2013
				(Dollars in millions)
		Finished products and work in process		$	522	$	499
		Raw materials and supplies			557		520
			Total inventories	$	1,079	$	1,019

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 26, 2014
Goodwill and Intangible Assets [Abstract]	'
Changes in Goodwill [Table Text Block]	'
	The changes in goodwill for the period are as follows:
						Occupant
			Chassis			Safety						Automotive
			Systems			Systems			Electronics			Components
			Segment			Segment			Segment			Segment			Total
			(Dollars in millions)
	Balance as of December 31, 2013		$	1,071		$	541		$	148		$	-		$	1,760
	Effects of foreign currency translation			-			-7			-			-			-7
	Balance as of September 26, 2014		$	1,071		$	534		$	148		$	-		$	1,753
Schedule Of Intangible Assets By Major Class [Table Text Block]	'
	Intangible assets
		The following table reflects intangible assets and related accumulated amortization:
				As of September 26, 2014									As of December 31, 2013
				Gross						Net			Gross					Net
				Carrying			Accumulated			Carrying			Carrying			Accumulated		Carrying
				Amount			Amortization			Amount			Amount			Amortization		Amount
					(Dollars in millions)
	Definite-lived intangible assets:
		Developed technology and other intangible assets		$	117		$	-93		$	24		$	119		$	-91	$	28
	Indefinite-lived intangible assets:
		Trademarks			264						264			264					264
	Total			$	381					$	288		$	383				$	292
Expected Amortization Expense [Table Text Block]	'
	The Company expects that ongoing amortization expense will approximate the following:
				(Dollars in millions)
		Remainder of 2014		$	1
		Fiscal year 2015			3
		2016 and beyond			20
	The expected amortization expense for 2016 and beyond primarily relates to land use rights.

Other_Income_Expense_Net_Table

Other (Income) Expense - Net (Tables)	9 Months Ended
	Sep. 26, 2014
Other (Income) Expense - Net [Abstract]	'
Other Income And Expense Net Disclosure [Table Text Block]	'
	8. Other (Income) Expense — Net
		The following table provides details of other (income) expense — net:
				Three Months Ended				Nine Months Ended
				September 26,		September 27,		September 26,		September 27,
				2014		2013		2014		2013
				(Dollars in millions)
		Net provision for bad debts		$	-	$	2	$	4	$	4
		Net gains on sales of assets and divestitures			-1		-		-1		-1
		Foreign currency exchange (gains) losses			-4		13		9		19
		Royalty and grant income			-7		-7		-16		-13
		Miscellaneous other (income) expense			-1		-3		6		-10
			Other (income) expense — net	$	-13	$	5	$	2	$	-1

Pension_Plans_and_Postretireme1

Pension Plans and Postretirement Benefits Other Than Pensions (Tables)	9 Months Ended
	Sep. 26, 2014
Pension Plans and Postretirement Benefits Other Than Pensions [Abstract]	'
Pension Plans and Postretirement Benefits Other Than Pensions [Table Text Block]	'
	10. Pension Plans and Postretirement Benefits Other Than Pensions
	Pension Plans
	The following tables provide the components of net pension (income) cost for the Company’s defined benefit pension plans:
		Three Months Ended
		26-Sep-14						27-Sep-13
						Rest of						Rest of
		U.S.		U.K.		World		U.S.		U.K.		World
		(Dollars in millions)
	Service cost	$	-	$	-	$	6	$	1	$	-	$	6
	Interest cost on projected benefit obligations		9		52		10		10		46		9
	Expected return on plan assets		-12		-86		-6		-15		-77		-5
	Amortization		2		-		3		7		-		4
	Settlement		-		-		-		-		-		-1
	Net pension (income) cost	$	-1	$	-34	$	13	$	3	$	-31	$	13
		Nine Months Ended
		26-Sep-14						27-Sep-13
						Rest of						Rest of
		U.S.		U.K.		World		U.S.		U.K.		World
		(Dollars in millions)
	Service cost	$	1	$	-	$	17	$	2	$	-	$	17
	Interest cost on projected benefit obligations		28		157		28		31		140		27
	Expected return on plan assets		-37		-259		-15		-44		-233		-15
	Amortization		6		-		9		20		-		14
	Settlement		-		-		-		-		-		-1
	Net pension (income) cost	$	-2	$	-102	$	39	$	9	$	-93	$	42
	Postretirement Benefits Other Than Pensions ("OPEB")
	The following tables provide the components of net OPEB cost (income) for the Company's plans:
		Three Months Ended
		26-Sep-14				27-Sep-13
				Rest of				Rest of
		U.S.		World		U.S.		World
		(Dollars in millions)
	Service cost	$	-	$	-	$	1	$	-
	Interest cost on projected benefit obligations		4		1		3		1
	Amortization		-2		-1		-3		-1
	Settlement		-		-		-1		-
	Net OPEB cost (income)	$	2	$	-	$	-	$	-
		Nine Months Ended
		26-Sep-14				27-Sep-13
				Rest of				Rest of
		U.S.		World		U.S.		World
		(Dollars in millions)
	Service cost	$	-	$	-	$	1	$	-
	Interest cost on projected benefit obligations	$	12	$	3	$	10	$	3
	Amortization		-7		-4		-10		-3
	Settlement		-		-		-7		-
	Net OPEB cost (income)	$	5	$	-1	$	-6	$	-

Fair_Value_Measurements_and_Fi1

Fair Value Measurements and Financial Instruments (Tables)	9 Months Ended
	Sep. 26, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements Recurring Basis [Table Text Block]	'
			As of
			26-Sep-14				31-Dec-13				Measurement Approach
			(Dollars in millions)
		Foreign currency exchange contracts — current assets	$	16			$	6			Level 2
		Foreign currency exchange contracts — noncurrent assets		13				-			Level 2
		Foreign currency exchange contracts — current liability		3				5			Level 2
		Foreign currency exchange contracts — noncurrent liability		2				9			Level 2
Financial Instruments Not Carried at Fair Value [Table Text Block]	'
			As of
			26-Sep-14						31-Dec-13
				Carrying		Fair			Carrying				Fair	Measurement
				Value		Value			Value				Value	Approach
			(Dollars in millions)
		Short-term debt, fixed and floating rate	$	238		$	238		$	159		$	159	Level 2
		Fixed rate long-term debt	$	1,349		$	1,442		$	1,821		$	1,884	Level 2
		Fixed rate exchangeable notes	$	138		$	502		$	134		$	375	Level 2
Offsetting Assets And Liabilites [Table Text Block]	'
	Offsetting of Derivative Assets and Liabilities
		The following table reflects the offsetting of derivative assets and liabilities:
				As of September 26, 2014											As of December 31, 2013
				Gross Amounts Recognized				Gross Amounts Offset				Net Amounts Reported			Gross Amounts Recognized		Gross Amounts Offset		Net Amounts Reported
					(Dollars in millions)
	Derivative Assets:
		Foreign Currency		$	58			$	-29			$	29		$	42	$	-36	$	6
	Derivative Liabilities:
		Foreign Currency			34				-29				5			50		-36		14

Debt_Tables

Debt (Tables)	9 Months Ended
	Sep. 26, 2014
Debt [Abstract]	'
Total Outstanding Debt [Table Text Block]	'
	12. Debt
	Total outstanding debt of the Company consisted of the following:
				As of
				September 26,		December 31,
				2014		2013
				(Dollars in millions)
		Short-term debt		$	238	$	159
		Long-term debt:
		6.375% Senior Notes, due 2014		$	-	$	234
		7.00% Senior Notes, due 2014			-		233
		7.25% Senior Notes, due 2017			445		446
		4.50% Senior Notes, due 2021			400		400
		4.45% Senior Notes, due 2023			400		400
		Exchangeable senior notes, due 2015			138		134
		Revolving credit facility			-		-
		Capitalized leases			15		18
		Other long-term borrowings			89		90
			Total long-term debt		1,487		1,955
		Less current portion			35		482
			Long-term debt, net of current portion	$	1,452	$	1,473

Restructuring_Charges_and_Asse1

Restructuring Charges and Asset Impairments (Tables)	9 Months Ended
	Sep. 26, 2014
Restructuring Charges And Asset Impairments [Abstract]	'
Schedule Of Restructuring Asset Impairment And Related Costs [Table Text Block]	'
						Occupant
				Chassis		Safety				Automotive
				Systems		Systems		Electronics		Components
				Segment		Segment		Segment		Segment		Corporate		Total
				(Dollars in millions)
	For the three months ended September 26, 2014:
		Severance and other charges - net		$	2	$	6	$	-	$	2	$	-	$	10
		Total restructuring charges and asset impairments		$	2	$	6	$	-	$	2	$	-	$	10
	For the three months ended September 27, 2013:
		Severance and other charges		$	-	$	2	$	-	$	-	$	-	$	2
		Other asset impairments			3		-		-		-		-		3
		Total restructuring charges and asset impairments		$	3	$	2	$	-	$	-	$	-	$	5
	For the nine months ended September 26, 2014:
		Severance and other charges - net		$	12	$	8	$	-	$	4	$	-	$	24
		Asset impairments related to restructuring activities			12		-		-		-		-		12
		Total restructuring charges and asset impairments		$	24	$	8	$	-	$	4	$	-	$	36
	For the nine months ended September 27, 2013:
		Severance and other charges		$	17	$	29	$	-	$	-6	$	-	$	40
		Other asset impairments			3		-		-		-		-		3
		Total restructuring charges and asset impairments		$	20	$	29	$	-	$	-6	$	-	$	43
Movement of the Restructuring Reserves for Severance and Other Charges [Table Text Block]	'
	Restructuring Reserves
	The following table illustrates the movement of the restructuring reserves for severance and other charges, including reserves related to severance-related postemployment benefits for both periods presented:
				Nine Months Ended
				September 26,		September 27,
				2014		2013
				(Dollars in millions)
		Beginning balance		$	88	$	121
			Current period accruals, net of changes in estimates		24		40
			Accruals related to divestitures		-3		-
			Used for purposes intended		-49		-64
			Effects of foreign currency translation		-6		3
		Ending balance		$	54	$	100

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 26, 2014
Share-Based Compensation [Abstract]	'
Share Based Compensation Expense By Type [Table Text Block]	'
	Share-based compensation expense recognized for the Plan was as follows:
			Three Months Ended				Nine Months Ended
			September 26,		September 27,		September 26,		September 27,
			2014		2013		2014		2013
			(Dollars in millions)
	Stock options and SSARs		$	3	$	3	$	8	$	9
	RSUs			7		6		19		21
	Performance Units			1		-		3		-
		Total share-based compensation expense	$	11	$	9	$	30	$	30

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 26, 2014
Segment Information [Abstract]	'
Schedule Of Segment Reporting Information By Segment [Table Text Block]	'
				Three Months Ended				Nine Months Ended
				September 26,		September 27,		September 26,		September 27,
				2014		2013		2014		2013
				(Dollars in millions)
		Sales to external customers:
			Chassis Systems	$	2,684	$	2,802	$	8,509	$	8,512
			Occupant Safety Systems		787		785		2,557		2,485
			Electronics		233		172		693		518
			Automotive Components		452		453		1,432		1,424
		Total sales to external customers		$	4,156	$	4,212	$	13,191	$	12,939
		Intersegment sales:
			Chassis Systems	$	5	$	4	$	12	$	12
			Occupant Safety Systems		37		32		112		98
			Electronics		168		134		461		406
			Automotive Components		18		18		56		55
		Total intersegment sales		$	228	$	188	$	641	$	571
		Total segment sales:
			Chassis Systems	$	2,689	$	2,806	$	8,521	$	8,524
			Occupant Safety Systems		824		817		2,669		2,583
			Electronics		401		306		1,154		924
			Automotive Components		470		471		1,488		1,479
		Total segment sales		$	4,384	$	4,400	$	13,832	$	13,510
		Earnings before taxes:
			Chassis Systems	$	213	$	188	$	648	$	600
			Occupant Safety Systems		62		63		216		175
			Electronics		34		28		106		86
			Automotive Components		32		31		114		119
		Segment earnings before taxes			341		310		1,084		980
		Corporate expense and other			-47		-18		-99		-50
		Financing costs			-25		-33		-82		-97
		Loss on retirement of debt — net			-		-		-		-5
		Net earnings attributable to noncontrolling interest, net of tax			9		9		29		32
			Earnings before income taxes	$	278	$	268	$	932	$	860
		See Note 13 for a summary of restructuring charges and asset impairments by segment.

Description_of_Business_Detail

Description of Business (Detail)	12 Months Ended
	Dec. 31, 2013
Description of Business [Abstract]	'
Sales to major OEM	83.00%

Merger_Details

Merger (Details) (USD $)	9 Months Ended
	Sep. 26, 2014
Merger [Abstract]	'
Merger Consideration	$105.60

Basis_of_Presentation_Net_Earn

Basis of Presentation - Net Earnings Attributable to TRW and the Weighted Average Shares Outstanding (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Earnings Per Share Disclosure [Line Items]	'	'	'	'
Net earnings attributable to TRW	$189	$197	$653	$607
Interest expense on exchangeable notes, net of tax	0	1	2	3
Amortization of discount on exchangeable notes, net of tax	1	1	3	3
Net earnings attributable to TRW for purposes of calculating diluted earnings per share	$190	$199	$658	$613
Basic:	'	'	'	'
Weighted average shares outstanding	111.1	117	111.7	118.5
Basic earnings per share	$1.70	$1.68	$5.85	$5.12
Diluted:	'	'	'	'
Weighted average shares outstanding	111.1	117	111.7	118.5
Effect of dilutive stock options, RSUs and SSARs	1.7	1.3	1.6	1.2
Shares applicable to exchangeable notes	5	5.9	5	5.9
Diluted weighted average shares outstanding	117.8	124.2	118.3	125.6
Diluted earnings per share	$1.61	$1.60	$5.56	$4.88

Basis_of_Presentation_Addition

Basis of Presentation - Additional Information (Detail)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Basis of Presentation [Abstract]	'	'	'	'
Securites excluded from diluted earnings per share calculation	0	0.4	0.6	1.6

Basis_of_Presentation_Movement

Basis of Presentation - Movement in the Product Warranty Liability (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013
Basis of Presentation [Abstract]	'	'
Beginning balance	$152	$140
Current period accruals, net of changes in estimates	33	44
Warranty Accruals Related To Divestitures	-2	0
Used for purposes intended	-28	-30
Effects of foreign currency translation	-5	-1
Ending balance	$150	$153

Basis_of_Presentation_Changes_

Basis of Presentation - Changes in Equity (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Stockholders Equity Note [Line Items]	'	'	'	'
Beginning balance of equity	$4,539	$3,853	$4,396	$3,769
Net earnings	198	206	682	639
Total other comprehensive earnings (losses)	-131	81	-75	-80
Dividends paid to noncontrolling interest	'	'	-3	-15
Changes related to share-based compensation	-17	19	-11	46
Value of capital stock repurchased	0	-260	-400	-460
Ending balance of equity	4,589	3,899	4,589	3,899
Parent	'	'	'	'
Stockholders Equity Note [Line Items]	'	'	'	'
Beginning balance of equity	4,324	3,654	4,194	3,578
Net earnings	189	197	653	607
Total other comprehensive earnings (losses)	-130	78	-70	-83
Dividends paid to noncontrolling interest	'	'	0	0
Changes related to share-based compensation	-17	19	-11	46
Value of capital stock repurchased	0	-260	-400	-460
Ending balance of equity	4,366	3,688	4,366	3,688
Noncontrolling Interest	'	'	'	'
Stockholders Equity Note [Line Items]	'	'	'	'
Beginning balance of equity	215	199	202	191
Net earnings	9	9	29	32
Total other comprehensive earnings (losses)	-1	3	-5	3
Dividends paid to noncontrolling interest	'	'	-3	-15
Changes related to share-based compensation	0	0	0	0
Value of capital stock repurchased	0	0	0	0
Ending balance of equity	$223	$211	$223	$211

Basis_of_Presentation_Changes_1

Basis of Presentation- Changes in Accumulated Other Comprehensive Income (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013	Jun. 27, 2014	Dec. 31, 2013	Jun. 28, 2013	Dec. 31, 2012
Basis of Presentation [Abstract]	'	'	'	'	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	$15	$0	$15	$0	$8	($16)	($16)	$10
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	-391	-582	-391	-582	-406	-405	-577	-559
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	-74	33	-74	33	78	41	-34	83
Total Accumulated other comprehensive earnings (losses)	-450	-549	-450	-549	-320	-380	-627	-466
OCI before reclassifications, cash flow hedges	7	16	27	-9	'	'	'	'
OCI before reclassifications, retirement obligations	14	-10	11	-37	'	'	'	'
OCI before reclassifications, foreign currency translation	-152	67	-115	-50	'	'	'	'
OCI before reclassifications, total	-131	73	-77	-96	'	'	'	'
Amounts reclassified from AOCI, cash flow hedges	0	0	4	-1	'	'	'	'
Amounts reclassified from AOCI, retirement obligations	1	5	3	14	'	'	'	'
Amounts reclassified from AOCI, total	1	5	7	13	'	'	'	'
Current period OCI, cash flow hedges	7	16	31	-10	'	'	'	'
Current period OCI, Retirement obligations	15	-5	14	-23	'	'	'	'
Current Period OCI, foreign currency translation	-152	67	-115	-50	'	'	'	'
Current period OCI, total	-130	78	-70	-83	'	'	'	'
Actuarial gains or losses reclassified from AOCI	4	11	13	33	'	'	'	'
Prior service costs reclassified from AOCI	3	4	9	13	'	'	'	'
Tax amount of retirement obligations reclassified from AOCI	$0	$2	$1	$6	'	'	'	'

Assets_Held_for_Sale_Detail

Assets Held for Sale (Detail) (USD $)	Sep. 26, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Assets Held for Sale [Abstract]	'	'
Cash, held-for-sale	$13	'
Accounts receivable - net, held-for sale	25	'
Inventories, held-for sale	48	'
Prepaid expenses and other current assets, held-for sale	7	'
Property, plant and equipment - net, held-for sale	157	'
Other assets, held-for-sale	11	'
Total assets held-for sale	261	0
Trade accounts payable, held-for-sale	23	'
Accrued compensation, held-for sale	20	'
Pension benefits, held-for sale	33	'
Other current liabilities, held-for-sale	24	'
Total liabilities related to assets held-for-sale	100	0
Purchase Price of Engine Valve Divestiture	$385	'

Assets_HeldforSale_Earnings_Be

Assets Held-for-Sale - Earnings Before Income Taxes (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Schedule of Earnings beofre Income Taxes, Engine Valve [Line Items]	'	'	'	'
Earnings (losses) before income taxes	$278	$268	$932	$860
Less: Net earnings attributable to noncontrolling interest, net of tax	9	9	29	32
Net earnings attributable to TRW	189	197	653	607
Engine Valve [Member]	'	'	'	'
Schedule of Earnings beofre Income Taxes, Engine Valve [Line Items]	'	'	'	'
Earnings (losses) before income taxes	7	7	20	24
Less: Net earnings attributable to noncontrolling interest, net of tax	1	1	3	4
Net earnings attributable to TRW	$6	$6	$17	$20

Inventories_Detail

Inventories (Detail) (USD $)	Sep. 26, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Inventories [Abstract]	'	'
Finished products and work in process	$522	$499
Raw materials and supplies	557	520
Total inventories	$1,079	$1,019

Investment_in_Joint_Venture_Af1

Investment in Joint Venture Affiliate (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013
Investment in Joint Venture Affiliate [Abtract]	'	'
Investment in non-consolidated joint venture assets	$6	$0
Non-consolidated Joint Venture Investment Ownership Percentage	30.00%	'

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets - Changes in Goodwill (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014
Goodwill [Line Items]	'
Beginning Balance	$1,760
Effects of foreign currency translation	-7
Ending Balance	1,753
Chassis Systems [Member]	'
Goodwill [Line Items]	'
Beginning Balance	1,071
Effects of foreign currency translation	0
Ending Balance	1,071
Occupant Safety Systems [Member]	'
Goodwill [Line Items]	'
Beginning Balance	541
Effects of foreign currency translation	-7
Ending Balance	534
Electronics [Member]	'
Goodwill [Line Items]	'
Beginning Balance	148
Effects of foreign currency translation	0
Ending Balance	148
Automotive Components [Member]	'
Goodwill [Line Items]	'
Beginning Balance	0
Effects of foreign currency translation	0
Ending Balance	$0

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets and Related Accumulated Amortization (Detail) (USD $)	Sep. 26, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Intangible Assets by Major Class [Line Items]	'	'
Intangible Assets Gross Excluding Goodwill	$381	$383
Intangible Assets Net Excluding Goodwill	288	292
Indefinite-lived intangible:	'	'
Trademarks	264	264
Developed Technology And Other Intangible Assets [Member]	'	'
Definite-lived intangible assets:	'	'
Definite-lived intangibles Gross Carrying amount	117	119
Definite-lived intangibles Accumulated Amortization	-93	-91
Definite-lived intangibles Net Carrying Amount	$24	$28

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets - Expected Amortization Expense (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014
Goodwill and Intangible Assets [Abstract]	'
Remainder of Current Fiscal Year	$1
Fiscal Year Two	3
Fiscal Year Three and Beyond	$20

Other_Income_Expense_Net_Detai

Other (Income) Expense - Net (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Other (Income) Expense - Net [Abstract]	'	'	'	'
Net provision for bad debts	$0	$2	$4	$4
Net gain on sales of assets and divestitures	-1	0	-1	-1
Foreign currency exchange (gains) losses	-4	13	9	19
Royalty and grant income	-7	-7	-16	-13
Miscellaneous other (income) expense	-1	-3	6	-10
Other (income) expense - net	($13)	$5	$2	($1)

Income_Taxes_Detail

Income Taxes (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Income Taxes [Line Items]	'	'	'	'
Income tax expense	$80	$62	$250	$221
Earnings before income taxes	278	268	932	860
Income tax expense (benefit), tax adjustments, settlements, and unusual provisions	'	'	-6	4
Tax benefit related to enactment of tax legislation	'	'	'	-12
Net of discrete tax items [Member]	'	'	'	'
Income Taxes [Line Items]	'	'	'	'
Tax benefit related to enactment of tax legislation	'	'	'	26
United Kingdom [Member]	'	'	'	'
Income Taxes [Line Items]	'	'	'	'
Tax benefit related to enactment of tax legislation	'	($18)	'	($18)

Pension_Plans_and_Postretireme2

Pension Plans and Postretirement Benefits Other Than Pensions - Components of Net Pension (Income) Cost (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Pension Plans - U.S.	'	'	'	'
Pension Plan [Line Items]	'	'	'	'
Service cost	$0	$1	$1	$2
Interest cost on projected benefit obligations	9	10	28	31
Expected return on plan assets	-12	-15	-37	-44
Amortization	2	7	6	20
Settlements	0	0	0	0
Defined benefit plan, net (income) cost	-1	3	-2	9
United Kingdom Foreign Pension Plans Defined Benefit [Member]	'	'	'	'
Pension Plan [Line Items]	'	'	'	'
Service cost	0	0	0	0
Interest cost on projected benefit obligations	52	46	157	140
Expected return on plan assets	-86	-77	-259	-233
Amortization	0	0	0	0
Settlements	0	0	0	0
Defined benefit plan, net (income) cost	-34	-31	-102	-93
Rest Of World Foreign Pension Plans Defined Benefit [Member]	'	'	'	'
Pension Plan [Line Items]	'	'	'	'
Service cost	6	6	17	17
Interest cost on projected benefit obligations	10	9	28	27
Expected return on plan assets	-6	-5	-15	-15
Amortization	3	4	9	14
Settlements	0	-1	0	-1
Defined benefit plan, net (income) cost	$13	$13	$39	$42

Pension_Plans_and_Postretireme3

Pension Plans and Postretirement Benefits Other Than Pensions - Components of Net OPEB (Income) Cost (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Postretirement Benefits Other than Pension - U.S.	'	'	'	'
Pension Plan [Line Items]	'	'	'	'
Service cost	$0	$1	$0	$1
Interest cost on projected benefit obligations	4	3	12	10
Amortization	-2	-3	-7	-10
Settlements	0	-1	0	-7
Defined benefit plan, net (income) cost	2	0	5	-6
Postretirement Benefits Other than Pension - Rest of World	'	'	'	'
Pension Plan [Line Items]	'	'	'	'
Service cost	0	0	0	0
Interest cost on projected benefit obligations	1	1	3	3
Amortization	-1	-1	-4	-3
Settlements	0	0	0	0
Defined benefit plan, net (income) cost	$0	$0	($1)	$0

Fair_Value_Measurements_Recurr

Fair Value Measurements - Recurring and Nonrecurring Basis (Detail) (USD $)	3 Months Ended	9 Months Ended									9 Months Ended
In Millions, unless otherwise specified	Sep. 27, 2013	Sep. 27, 2013	Sep. 26, 2014	Dec. 31, 2013	Sep. 26, 2014	Dec. 31, 2013	Sep. 26, 2014	Dec. 31, 2013	Sep. 26, 2014	Dec. 31, 2013	Sep. 26, 2014
			Fair Value, Measurements, Recurring	Fair Value, Measurements, Recurring	Fair Value, Measurements, Recurring	Fair Value, Measurements, Recurring	Fair Value, Measurements, Recurring	Fair Value, Measurements, Recurring	Fair Value, Measurements, Recurring	Fair Value, Measurements, Recurring	Fair Value, Measurements, Nonrecurring
			Current Assets [Member]	Current Assets [Member]	Noncurrent Assets [Member]	Noncurrent Assets [Member]	Current Liabilities [Member]	Current Liabilities [Member]	Noncurrent Liabilities [Member]	Noncurrent Liabilities [Member]
			Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Foreign currency contracts assets	'	'	$16	$6	$13	$0	'	'	'	'	'
Foreign currency contracts liabilities	'	'	'	'	'	'	3	5	2	9	'
Fixed asset impairments	$3	$3	'	'	'	'	'	'	'	'	$12

Financial_Instruments_Not_Carr

Financial Instruments - Not Carried at Fair Value (Detail) (USD $)	Sep. 26, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Short-term debt	$238	$159
Exchageable Notes	138	134
Carrying (Reported) Amount, Fair Value Disclosure [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Short-term debt	238	159
Long-term debt	1,349	1,821
Exchageable Notes	138	134
Portion At Fair Value Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Short-term debt	238	159
Exchageable Notes	502	375
Portion At Fair Value Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] | Fixed Rate [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Long-term debt	$1,442	$1,884

Financial_Instruments_Detail

Financial Instruments (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Not Designated as Hedging Instrument | Other Income And Expense [Member]	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gain (loss) recognized in current earnings	$13,000,000	$0	$16,000,000	($3,000,000)
Foreign Exchange Contract	'	'	'	'
Derivative [Line Items]	'	'	'	'
Notional value	2,800,000,000	'	2,800,000,000	'
Cash Flow Hedging	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gains included in OCI expected to be reclassified into earnings in the next twelve months, net of tax	9,000,000	'	'	'
Effective portion of the gain (loss) on derivatives designated as cash flow hedges that was recognized in OCI	8,000,000	22,000,000	33,000,000	-11,000,000
Effective portion of gain (loss) on hedges reclassified from OCI into the statements of earnings	$1,000,000	$0	($4,000,000)	$1,000,000

Financial_Instruments_Offsetti

Financial Instruments - Offsetting of Derivative Assets and Liabilities (Detail) (Foreign Exchange Contract, USD $)	Sep. 26, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Foreign Exchange Contract	'	'
Offsetting Assets [Line Items]	'	'
Derivative assets, gross amount recognized	$58	$42
Derivative assets, gross amounts offset	-29	-36
Derivative asets, net amounts reported	29	6
Derivative liabilities, gross amounts recognized	34	50
Derivative liabilities, gross amounts offset	-29	-36
Derivative liabilities, net amounts reported	$5	$14

Debt_Total_Outstanding_Debt_De

Debt - Total Outstanding Debt (Detail) (USD $)	Sep. 26, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Debt Disclosure [Line Items]	'	'
Short-term debt	$238	$159
Long-term debt:	'	'
Exchageable Notes	138	134
Revolving Credit Facility	0	0
Capitalized leases	15	18
Other borrowings	89	90
Total long-term debt	1,487	1,955
Less current portion	35	482
Long-term debt, net of current portion	1,452	1,473
Senior Notes 6.375% Due 2014 [Member]	'	'
Long-term debt:	'	'
Senior Notes	0	234
Senior Notes 4.50% Due 2021 [Member]	'	'
Long-term debt:	'	'
Senior Notes	400	400
Senior Notes 7.00% Due 2014 [Member]	'	'
Long-term debt:	'	'
Senior Notes	0	233
Senior Notes 7.25% Due 2017 [Member]	'	'
Long-term debt:	'	'
Senior Notes	445	446
Senior Notes 4.45% Due 2023 [Member]	'	'
Long-term debt:	'	'
Senior Notes	$400	$400

Debt_Senior_Notes_Detail

Debt - Senior Notes (Detail)	9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 26, 2014	Mar. 31, 2007	Feb. 28, 2013	Nov. 30, 2013	Sep. 26, 2014
	Senior Notes 7.00% Due 2014 [Member]	Senior Notes 6.375% Due 2014 [Member]	Senior Notes 7.25% Due 2017 [Member]	Senior Notes 4.50% Due 2021 [Member]	Senior Notes 4.45% Due 2023 [Member]	Senior Notes [Member]
	USD ($)	EUR (€)	USD ($)	USD ($)	USD ($)
Debt Disclosure [Line Items]	'	'	'	'	'	'
Face amount	'	'	$600	$400	$400	'
Interest rate	'	'	7.25%	4.50%	4.45%	'
Senior Notes Matured and Repaid	$233	€ 170	'	'	'	'
Debt covenants potential triggering event from ZF, required repurchase price	'	'	'	'	'	101.00%

Debt_Exchangable_Senior_Notes_

Debt - Exchangable Senior Notes (Detail) (Exchangeable Senior Unsecured Notes Three Point Five Percent Due Twenty Fifteen [Member], USD $)	1 Months Ended	3 Months Ended		9 Months Ended
In Millions, except Share data, unless otherwise specified	Nov. 30, 2009	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013	Dec. 31, 2013
Exchangeable Senior Unsecured Notes Three Point Five Percent Due Twenty Fifteen [Member]	'	'	'	'	'	'
Debt Disclosure [Line Items]	'	'	'	'	'	'
Face amount	$259	'	'	'	'	'
Interest rate	3.50%	'	'	'	'	'
Exchange rate of shares of the Company's common stock per $1,000 principal amount of notes	33.8392	'	'	'	'	'
Effective yield	9.00%	'	'	'	'	'
Debt discount	'	9	'	9	'	14
Interest expense recognized	'	3	3	9	10	'
Interest expense on exchangeable notes, excluding amortization	'	1	2	4	5	'
Exchangeable notes sales price condition	$38.41	'	'	'	'	'
Exchangeable Senior Notes principal amount exchanged for shares of company stock	'	'	1	'	'	'
Number of shares of Company stock issued in exchange for notes being converted	'	'	34,000	'	'	'
Equity component of 3.5% exchangeable note repurchase	'	$2	'	'	'	'
Debt covenants potential triggering event from ZF, required repurchase price	'	100.00%	'	100.00%	'	'

Debt_Senior_Credit_Facilities_

Debt - Senior Credit Facilities (Detail) (USD $)	9 Months Ended
In Billions, unless otherwise specified	Sep. 26, 2014	Sep. 28, 2012
Debt Disclosure [Line Items]	'	'
Revolving credit facility, facility size	'	$1.40
Commitment fee	0.25%	'
Euro Denominated [Member]	'	'
Debt Disclosure [Line Items]	'	'
Applicable margin	1.25%	'
Base Rate [Member]	'	'
Debt Disclosure [Line Items]	'	'
Applicable margin	0.25%	'

Debt_Other_Borrowings_Detail

Debt - Other Borrowings (Detail) (USD $)	Sep. 26, 2014
In Millions, unless otherwise specified
Debt [Abstract]	'
Short-term borrowings under uncommited credit agreements	$232

Restructuring_Charges_and_Asse2

Restructuring Charges and Asset Impairments - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Severance and other charges	$10	$2	$24	$40
Asset impairments related to restructuring activities	'	'	12	0
Other asset impairments	'	3	'	3
Total restructuring charges and asset impairments	10	5	36	43
Chassis Systems [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Severance and other charges	2	0	12	17
Asset impairments related to restructuring activities	'	'	12	'
Other asset impairments	'	3	'	3
Total restructuring charges and asset impairments	2	3	24	20
Occupant Safety Systems [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Severance and other charges	6	2	8	29
Asset impairments related to restructuring activities	'	'	0	'
Other asset impairments	'	0	'	0
Total restructuring charges and asset impairments	6	2	8	29
Automotive Components [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Severance and other charges	2	0	4	-6
Asset impairments related to restructuring activities	'	'	0	'
Other asset impairments	'	0	'	0
Total restructuring charges and asset impairments	2	0	4	-6
Electronics [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Severance and other charges	0	0	0	0
Asset impairments related to restructuring activities	'	'	0	'
Other asset impairments	'	0	'	0
Total restructuring charges and asset impairments	0	0	0	0
Corporate [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Severance and other charges	0	0	0	0
Asset impairments related to restructuring activities	'	'	0	'
Other asset impairments	'	0	'	0
Total restructuring charges and asset impairments	$0	$0	$0	$0

Restructuring_Charges_and_Asse3

Restructuring Charges and Asset Impairments - Movement of the Restructuring Reserves for Severance and Other Charges (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013
Restructuring Charges And Asset Impairments [Abstract]	'	'
Beginning balance	$88	$121
Current period accruals, net of changes in estimates	24	40
Accruals Related to Divestitures	-3	0
Used for purposes intended, restructuring	-49	-64
Effects of foreign currency translation and transfers	-6	3
Ending balance	54	100
Restructuring reserve expected to be paid within one year	$21	'

Transaction_Costs_Detail

Transaction Costs (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Transaction Costs [Abstract]	'	'	'	'
Transaction Costs	$13	$0	$13	$0

Capital_Stock_Detail

Capital Stock (Detail) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended			3 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013	Sep. 27, 2013	Sep. 26, 2014	Sep. 26, 2014	Sep. 26, 2014	Mar. 28, 2014	Sep. 26, 2014
					Exchangeable Senior Unsecured Notes Three Point Five Percent Due Twenty Fifteen [Member]	$2 Billion Share Repurchase Program [Member]	Anti Dilution Program [Member]	ASR March 2014 [Member]	ASR March 2014 [Member]	Series A junior participating preferred stock
Stockholders Equity Note [Line Items]	'	'	'	'	'	'	'	'	'	'
Common stock, shares authorized	500,000,000	'	500,000,000	'	'	'	'	'	'	'
Common stock, par value	$0.01	'	$0.01	'	'	'	'	'	'	'
Common stock, shares outstanding	110,628,893	'	110,628,893	'	'	'	'	'	'	'
Treasury stock, shares	4,668	'	4,668	'	'	'	'	'	'	'
Preferred stock, shares authorized	250,000,000	'	250,000,000	'	'	'	'	'	'	500,000
Preferred stock, par value	$0.01	'	$0.01	'	'	'	'	'	'	'
Preferred stock, shares issued	'	'	'	'	'	'	'	'	'	0
Preferred stock, shares outstanding	'	'	'	'	'	'	'	'	'	0
Number of shares repurchased	'	'	'	'	'	'	'	700,000	3,900,000	'
Average cost of shares repurchased	'	'	'	'	'	'	'	$88.08	'	'
Value of capital stock repurchased	$0	$260,000,000	$400,000,000	$460,000,000	'	'	'	'	$400,000,000	'
Stock repurchase program authorized amount	'	'	'	'	'	2,000,000,000	'	'	'	'
Stock repurchse program authorized shares	'	'	'	'	'	'	1,500,000	'	'	'
Number of shares of Company stock issued in exchange for notes being converted	'	'	'	'	34,000	'	'	'	'	'
Exchangeable Senior Notes principal amount exchanged for shares of company stock	'	'	'	'	$1,000,000	'	'	'	'	'

ShareBased_Compensation_Detail

Share-Based Compensation (Detail) (USD $)	0 Months Ended		9 Months Ended
	13-May-14	Feb. 21, 2014	Sep. 26, 2014
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'
Common stock available for issuance under the Plan	'	'	3,352,143
Stock-Settled Stock Appreciation Rights [Member]	'	'	'
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'
Equity instruments other than options granted	'	850,900	'
Equity instruments other than options grant date fair market value	'	82.5	'
Maximum Value at Exercise	'	130	'
Equity instruments other than options outstanding	'	'	2,342,149
Contractual term	'	'	'8 years
Vesting period	'	'	'3 years
Restricted Stock Units [Member]	'	'	'
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'
Equity instruments other than options granted	14,742	284,723	'
Equity instruments other than options outstanding	'	'	690,692
Vesting period	'	'	'3 years
Phantom Stock Units [Member]	'	'	'
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'
Equity instruments other than options granted	'	3,365	'
Equity instruments other than options outstanding	'	'	12,650
Vesting period	'	'	'3 years
Stock Options [Member]	'	'	'
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'
Contractual term	'	'	'8 years
Vesting period	'	'	'3 years
Options outstanding	'	'	231,547
Performance Units [Member]	'	'	'
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'
Equity instruments other than options granted	'	46,949	'
Equity instruments other than options outstanding	'	'	46,949

ShareBased_Compensation_Expens

Share-Based Compensation - Expense (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'	'
Share based compensation expense	$11	$9	$30	$30
Employee Stock Options And Stock Settled Stock Appreciation Rights (Ssars) [Member]	'	'	'	'
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'	'
Share based compensation expense	3	3	8	9
Restricted Stock Units [Member]	'	'	'	'
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'	'
Share based compensation expense	7	6	19	21
Performance Units [Member]	'	'	'	'
Compensation Related Costs Share Based Payments Disclosure [Line Items]	'	'	'	'
Share based compensation expense	$1	$0	$3	$0

Contingencies_Detail

Contingencies (Detail) (USD $)	Sep. 26, 2014
In Millions, unless otherwise specified
Contingencies [Abstract]	'
Reserves for environmental matters	$77
Northrop indemnification percentage	50.00%

Segment_Information_Detail

Segment Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Sales	$4,156	$4,212	$13,191	$12,939
Intersegment and Segment Sales	4,384	4,400	13,832	13,510
Financing costs	-25	-33	-82	-97
Loss on retirement of debt - net	0	0	0	-5
Net earnings attributable to noncontrolling interest, net of tax	9	9	29	32
Earnings before income taxes	278	268	932	860
Intersegment Sales [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Intersegment and Segment Sales	228	188	641	571
Chassis Systems [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales	2,684	2,802	8,509	8,512
Intersegment and Segment Sales	2,689	2,806	8,521	8,524
Segment earnings before taxes	213	188	648	600
Chassis Systems [Member] | Intersegment Sales [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Intersegment and Segment Sales	5	4	12	12
Occupant Safety Systems [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales	787	785	2,557	2,485
Intersegment and Segment Sales	824	817	2,669	2,583
Segment earnings before taxes	62	63	216	175
Occupant Safety Systems [Member] | Intersegment Sales [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Intersegment and Segment Sales	37	32	112	98
Electronics [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales	233	172	693	518
Intersegment and Segment Sales	401	306	1,154	924
Segment earnings before taxes	34	28	106	86
Electronics [Member] | Intersegment Sales [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Intersegment and Segment Sales	168	134	461	406
Automotive Components [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales	452	453	1,432	1,424
Intersegment and Segment Sales	470	471	1,488	1,479
Segment earnings before taxes	32	31	114	119
Automotive Components [Member] | Intersegment Sales [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Intersegment and Segment Sales	18	18	56	55
Operating Segments	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Segment earnings before taxes	341	310	1,084	980
Corporate expense and other	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Earnings before income taxes	($47)	($18)	($99)	($50)