Business Segments (Details 4) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Asset write-offs and accelerated depreciation:
Total Segment Asset Write-offs and Accelerated Depreciation	$ 20	$ 50	$ 15
North American Tire [Member]
Asset write-offs and accelerated depreciation:
Total Segment Asset Write-offs and Accelerated Depreciation	1	43	2
Europe, Middle East and Africa Tire [Member]
Asset write-offs and accelerated depreciation:
Total Segment Asset Write-offs and Accelerated Depreciation	0	0	1
Asia Pacific Tire [Member]
Asset write-offs and accelerated depreciation:
Total Segment Asset Write-offs and Accelerated Depreciation	$ 19	$ 7	$ 12