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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Dissolution of Global Alliance With Sumitomo Rubber Industries - Narrative (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Oct. 01, 2015	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of subsidiary	$ 125
Proceeds from sale of equity method investment	14
Proceeds from sale of test track	6
Pre-tax gain on asset sales			$ 31	$ 71	$ 3
Indemnification asset	$ 32		35
Increase (decrease) in accumulated other comprehensive loss			(63)	(69)	$ (79)
NGY
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest acquired	75.00%
Consideration transferred	$ 29
GDTE
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership interest acquired	25.00%
Consideration transferred	$ 387
Increase (decrease) in accumulated other comprehensive loss				107
Increase in capital surplus				60
SRI
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net amount paid upon closing transactions	271
Debt instrument, principal amount	$ 56
Promissory note, term	3 years
Proceeds on sale of common stock in SRI				47
Pre-tax gain on asset sales				48
Net gain on asset sales				38
Pre-tax charge for estimated product liability obligation				28
Increase (decrease) in accumulated other comprehensive loss				(77)
SRI \| London Interbank Offered Rate (LIBOR)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Promissory note, basis spread on variable rate	0.10%
Accounts receivable
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Indemnification asset			6
Other Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Indemnification asset			$ 29
GDTNA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Increase (decrease) in accumulated other comprehensive loss				(184)
Other (Income) Expense \| SRI
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gain on sale of common stock in SRI		$ 30		$ 30
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| GDTNA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity ownership percentage	75.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| DGT
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity ownership percentage	25.00%
SRI \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| DGT
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity ownership percentage	25.00%