Business Segments (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Rationalizations:
Rationalizations (Note 2)	$ 26	$ 25	$ 67	$ 80
Net (Gains) Losses on Asset Sales:
Net (gains) losses on asset sales	(5)	(11)	(22)	(24)
Operating Segments
Rationalizations:
Rationalizations (Note 2)	26	25	67	80
Corporate
Net (Gains) Losses on Asset Sales:
Net (gains) losses on asset sales	0	(1)	(2)	(3)
Segment Asset Sales
Net (Gains) Losses on Asset Sales:
Net (gains) losses on asset sales	(5)	(10)	(20)	(21)
North American Tire
Rationalizations:
Rationalizations (Note 2)	9	20	28	60
Net (Gains) Losses on Asset Sales:
Net (gains) losses on asset sales	(3)	(2)	(7)	(7)
Europe, Middle East and Africa Tire
Rationalizations:
Rationalizations (Note 2)	8	2	18	9
Net (Gains) Losses on Asset Sales:
Net (gains) losses on asset sales	0	1	(8)	(1)
Latin American Tire
Rationalizations:
Rationalizations (Note 2)	0	0	2	0
Net (Gains) Losses on Asset Sales:
Net (gains) losses on asset sales	(1)	0	(4)	(4)
Asia Pacific Tire
Rationalizations:
Rationalizations (Note 2)	9	3	19	11
Net (Gains) Losses on Asset Sales:
Net (gains) losses on asset sales	$ (1)	$ (9)	$ (1)	$ (9)