Business Segments (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net Gains on Asset Sales:
Net (gains) losses on asset sales	$ (25)	$ (16)	$ (73)
Segment Asset Sales (gain) loss [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales	(23)	(12)	(73)
Corporate [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales	(2)	(4)	0
North American Tire [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales	(9)	2	(2)
Europe, Middle East and Africa Tire [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales	(9)	(1)	(6)
Latin American Tire [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales	(4)	(4)	(7)
Asia Pacific Tire [Member]
Net Gains on Asset Sales:
Net (gains) losses on asset sales	$ (1)	$ (9)	$ (58)