Business Segments (Details 4) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Asset write-offs and accelerated depreciation:
Total Segment Asset Write Offs and Accelerated Depreciation	$ 25	$ 6	$ 34	$ 9
North American Tire [Member]
Asset write-offs and accelerated depreciation:
Total Segment Asset Write Offs and Accelerated Depreciation	24		32	1
Europe, Middle East and Africa Tire [Member]
Asset write-offs and accelerated depreciation:
Total Segment Asset Write Offs and Accelerated Depreciation		1		1
Asia Pacific Tire [Member]
Asset write-offs and accelerated depreciation:
Total Segment Asset Write Offs and Accelerated Depreciation	$ 1	$ 5	$ 2	$ 7