Changes in Shareholders' Equity - Changes in Shareholders' Equity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Increase (Decrease) in Stockholders' Equity
Balance at beginning of period			$ 4,850	$ 4,725
Comprehensive income (loss):
Net income	$ 354	$ 132	598	455
Foreign currency translation, net of tax of ($8) in 2018 ($44 in 2017)	(86)	35	(235)	169
Amortization of prior service cost and unrecognized gains and losses included in total benefit cost, net of tax of $24 in 2018 ($31 in 2017)	26	18	79	57
(Increase)/Decrease in net actuarial losses, net of tax of $2 in 2018 (($15) in 2017)	(20)	(26)	(1)	(23)
Immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures, net of tax of $4 in 2018 ($9 in 2017)	9	15	13	15
Deferred derivative gains (losses), net of tax of $3 in 2018 (($9) in 2017)	0	(5)	6	(19)
Reclassification adjustment for amounts recognized in income, net of tax of $2 in 2018 (($1) in 2017)	1	1	6	(2)
Other Comprehensive Income (Loss)	(70)	38	(132)	197
Comprehensive Income (Loss)	284	170	466	652
Adoption of new accounting standards updates (Note 1)					$ (1)	$ 0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			(8)	(6)
Stock-based compensation plans			14	17
Repurchase of common stock			(200)	(205)
Dividends declared			(101)	(75)
Common stock issued from treasury			4	13
Purchase of minority shares			(24)	0
Balance at end of period	5,000	5,121	5,000	5,121
Foreign currency translation, tax	0	25	(8)	44
Amortization of prior service cost and unrecognized gains and (losses) included in total benefit cost, tax	8	10	24	31
(Increase)/Decrease in net actuarial losses, tax	(4)	(16)	2	(15)
Immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures, tax	2	9	4	9
Deferred derivative gains (losses), tax	1	(2)	3	(9)
Reclassification adjustment for amounts recognized in income, tax	0	0	2	(1)
Goodyear Shareholders’ Equity
Increase (Decrease) in Stockholders' Equity
Balance at beginning of period			4,603	4,507
Comprehensive income (loss):
Net income			583	442
Foreign currency translation, net of tax of ($8) in 2018 ($44 in 2017)			(210)	155
Amortization of prior service cost and unrecognized gains and losses included in total benefit cost, net of tax of $24 in 2018 ($31 in 2017)			79	57
(Increase)/Decrease in net actuarial losses, net of tax of $2 in 2018 (($15) in 2017)			(1)	(23)
Immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures, net of tax of $4 in 2018 ($9 in 2017)			13	15
Deferred derivative gains (losses), net of tax of $3 in 2018 (($9) in 2017)			6	(19)
Reclassification adjustment for amounts recognized in income, net of tax of $2 in 2018 (($1) in 2017)			6	(2)
Other Comprehensive Income (Loss)			(107)	183
Comprehensive Income (Loss)			476	625
Adoption of new accounting standards updates (Note 1)					(1)	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			0	0
Stock-based compensation plans			14	17
Repurchase of common stock			(200)	(205)
Dividends declared			(101)	(75)
Common stock issued from treasury			4	13
Purchase of minority shares			5	0
Balance at end of period	4,800	4,882	4,800	4,882
Minority Shareholders’ Equity – Nonredeemable
Increase (Decrease) in Stockholders' Equity
Balance at beginning of period			247	218
Comprehensive income (loss):
Net income			15	13
Foreign currency translation, net of tax of ($8) in 2018 ($44 in 2017)			(25)	14
Amortization of prior service cost and unrecognized gains and losses included in total benefit cost, net of tax of $24 in 2018 ($31 in 2017)			0	0
(Increase)/Decrease in net actuarial losses, net of tax of $2 in 2018 (($15) in 2017)			0	0
Immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures, net of tax of $4 in 2018 ($9 in 2017)			0	0
Deferred derivative gains (losses), net of tax of $3 in 2018 (($9) in 2017)			0	0
Reclassification adjustment for amounts recognized in income, net of tax of $2 in 2018 (($1) in 2017)			0	0
Other Comprehensive Income (Loss)			(25)	14
Comprehensive Income (Loss)			(10)	27
Adoption of new accounting standards updates (Note 1)					$ 0	$ 0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			(8)	(6)
Stock-based compensation plans			0	0
Repurchase of common stock			0	0
Dividends declared			0	0
Common stock issued from treasury			0	0
Purchase of minority shares			(29)	0
Balance at end of period	$ 200	$ 239	$ 200	$ 239