Business Segments (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Asset write-offs and accelerated depreciation:
Total Segment Asset Write Offs and Accelerated Depreciation	$ 13	$ 12	$ 19	$ 46
North American Tire
Asset write-offs and accelerated depreciation:
Total Segment Asset Write Offs and Accelerated Depreciation	0	11	0	43
Asia Pacific Tire
Asset write-offs and accelerated depreciation:
Total Segment Asset Write Offs and Accelerated Depreciation	$ 13	$ 1	$ 19	$ 3