Net Sales - Schedule Of Disaggregated Net Sales From Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	$ 4,540	$ 4,645	$ 12,671	$ 13,363
Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	2,675	2,737	7,120	7,901
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	1,355	1,407	4,090	4,028
Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	510	501	1,461	1,434
Tire unit sales
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	3,896	3,905	10,766	11,166
Tire unit sales \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	2,271	2,209	5,947	6,349
Tire unit sales \| Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	1,142	1,222	3,432	3,458
Tire unit sales \| Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	483	474	1,387	1,359
Other tire and related sales
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	397	378	1,191	1,106
Other tire and related sales \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	207	205	594	582
Other tire and related sales \| Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	169	148	531	453
Other tire and related sales \| Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	21	25	66	71
Retail services and service related sales
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	236	236	685	693
Retail services and service related sales \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	192	199	558	576
Retail services and service related sales \| Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	44	37	127	117
Retail services and service related sales \| Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	0	0	0	0
Chemical sales
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	5	121	16	380
Chemical sales \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	5	121	16	380
Chemical sales \| Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	0	0	0	0
Chemical sales \| Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	0	0	0	0
Other
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	6	5	13	18
Other \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	0	3	5	14
Other \| Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	0	0	0	0
Other \| Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	$ 6	$ 2	$ 8	$ 4