Business Segments (Details 3) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net Gains on Asset Sales:
Net (gains) losses on asset sales (Note3)	$ (11)	$ (8)	$ (13)	$ (24)
North American Tire [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales (Note3)	(5)	(1)	(5)	(1)
Europe, Middle East and Africa Tire [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales (Note3)	(1)		(2)	(1)
Latin American Tire [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales (Note3)	(3)	(7)	(4)	(7)
Asia Pacific Tire [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales (Note3)				(15)
Segment Asset Sales (gain) loss [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales (Note3)	(9)	(8)	(11)	(24)
Corporate [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales (Note3)	$ (2)		$ (2)