Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current Assets:
Allowance on accounts receivable	$ 96	$ 99
Accumulated depreciation	$ 9,189	$ 9,158
Goodyear Shareholders' Equity:
Preferred stock, authorized	50,000,000	50,000,000
Mandatory convertible preferred stock, outstanding	0	10,000,000
Mandatory convertible preferred stock, liquidation preference	$ 50	$ 50
Common stock, authorized	450,000,000	450,000,000
Common stock, outstanding shares	275,000,000	248,000,000
Treasury shares	3,000,000	3,000,000