Business Segments (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Operating Income:
Net Sales	$ 18,138us-gaap_SalesRevenueGoodsNet	$ 19,540us-gaap_SalesRevenueGoodsNet	$ 20,992us-gaap_SalesRevenueGoodsNet
Total Segment Operating Income	1,712us-gaap_OperatingIncomeLoss	1,580us-gaap_OperatingIncomeLoss	1,248us-gaap_OperatingIncomeLoss
Rationalizations	95us-gaap_RestructuringCharges	58us-gaap_RestructuringCharges	175us-gaap_RestructuringCharges
Interest Expense	428us-gaap_InterestExpense	392us-gaap_InterestExpense	357us-gaap_InterestExpense
Other (Income) Expense	302us-gaap_OtherNonoperatingIncomeExpense	97us-gaap_OtherNonoperatingIncomeExpense	139us-gaap_OtherNonoperatingIncomeExpense
Asset Write-offs and accelerated depreciation	7	23	20
Corporate incentive compensation plans	97gt_CorporateIncentiveCompensationPlans	108gt_CorporateIncentiveCompensationPlans	69gt_CorporateIncentiveCompensationPlans
Corporate pension curtailments / settlements	33	0	1
Intercompany profit elimination	(4)gt_IntercompanyProfitElimination	(4)gt_IntercompanyProfitElimination	(1)gt_IntercompanyProfitElimination
Retained expenses of divested operations	16gt_RetainedExpensesOfDivestedOperations	24gt_RetainedExpensesOfDivestedOperations	14gt_RetainedExpensesOfDivestedOperations
Other	51gt_OtherExpense	69gt_OtherExpense	34gt_OtherExpense
Income before Income Taxes	687	813	440
Royalty Income, Nonoperating	35us-gaap_RoyaltyIncomeNonoperating	51us-gaap_RoyaltyIncomeNonoperating	38us-gaap_RoyaltyIncomeNonoperating
Cost of Goods Sold Benefit from Contract Waiver			24
Assets	18,109us-gaap_Assets	17,527us-gaap_Assets	16,973us-gaap_Assets
Long-Lived Assets	7,153us-gaap_NoncurrentAssets	7,320us-gaap_NoncurrentAssets	6,956us-gaap_NoncurrentAssets
Cash and Cash Equivalents	2,161	2,996	2,281	2,772
North America
Segment Operating Income:
Net Sales	8,085	8,684	9,666
Total Segment Operating Income	803	691	514
Rationalizations	(6)	12	43
Asset Write-offs and accelerated depreciation	0	0	1
Corporate pension curtailments / settlements	33
Assets	4,929	4,979	5,170
Europe, Middle East and Africa
Segment Operating Income:
Net Sales	6,180	6,567	6,884
Total Segment Operating Income	438	298	252
Rationalizations	89	26	100
Asset Write-offs and accelerated depreciation	7	23	0
Assets	4,996	5,559	5,415
Cash and Cash Equivalents	517	696
Cash and Cash Equivalents As A Percent Of Total	24.00%	23.00%
Latin America
Segment Operating Income:
Net Sales	1,796	2,063	2,085
Total Segment Operating Income	170	283	223
Rationalizations	3	4	6
Assets	2,104	2,402	2,367
Cash and Cash Equivalents	409	603
Cash and Cash Equivalents As A Percent Of Total	19.00%	20.00%
Asia Pacific
Segment Operating Income:
Net Sales	2,077	2,226	2,357
Total Segment Operating Income	301	308	259
Rationalizations	9	16	26
Asset Write-offs and accelerated depreciation	0	0	19
Assets	2,603	2,624	2,601
Cash and Cash Equivalents	462	334
Cash and Cash Equivalents As A Percent Of Total	21.00%	11.00%
CHINA
Segment Operating Income:
Long-Lived Assets	809	821	796
UNITED STATES
Segment Operating Income:
Net Sales	7,558	7,820	8,416
Long-Lived Assets	2,464	2,389	2,424
GERMANY
Segment Operating Income:
Net Sales	2,288	2,372	2,541
Long-Lived Assets	833	891	788
Other International
Segment Operating Income:
Net Sales	8,292	9,348	10,035
Long-Lived Assets	3,047	3,219	2,948
Operating Segments
Segment Operating Income:
Rationalizations	95	58	175
Assets	14,632	15,564	15,553
Intersegment Eliminations
Segment Operating Income:
Assets	3,477	1,963	1,420
Increase In Corporate Assets Due To Valuation Release	2,084
Intersegment Eliminations
Segment Operating Income:
Royalty Income, Nonoperating	$ 24	$ 39	$ 26

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Corporate incentive compensation plans

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Cost of Goods Sold Benefit from Contract Waiver

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The aggregate amount of net gain or loss recognized in net periodic benefit cost due to settlements, curtailments and termination benefits. Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts to cover vested benefits. Termination benefits are special termination benefits which are not contractual under the plan.

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Increase in corporate assets due to the release of substantially all of the valuation allowance on our net U.S. deferred tax assets

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Intercompany profit elimination.

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Other expenses.

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Retained expenses of divested opeartions including environmental charges, general and product liaiblity, etc.

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Segment asset write offs and accelerated depreciation.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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