Business Segments (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Rationalizations:
Rationalizations	$ 175	$ 103	$ 240
Corporate [Member]
Rationalizations:
Rationalizations	0	0	(1)
Operating Segments [Member]
Rationalizations:
Rationalizations	175	103	241
North American Tire [Member]
Rationalizations:
Rationalizations	43	72	184
Europe, Middle East and Africa Tire [Member]
Rationalizations:
Rationalizations	100	15	41
Latin American Tire [Member]
Rationalizations:
Rationalizations	6	0	5
Asia Pacific Tire [Member]
Rationalizations:
Rationalizations	$ 26	$ 16	$ 11