Net Sales - Schedule Of Disaggregated Net Sales From Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	$ 4,250	$ 4,465	$ 8,131	$ 8,718
Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	2,382	2,662	4,445	5,164
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	1,372	1,344	2,735	2,621
Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	496	459	951	933
Tire unit sales
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	3,576	3,686	6,870	7,261
Tire unit sales \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	1,979	2,132	3,676	4,140
Tire unit sales \| Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	1,126	1,120	2,290	2,236
Tire unit sales \| Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	471	434	904	885
Other tire and related sales
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	432	405	794	725
Other tire and related sales \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	206	199	387	374
Other tire and related sales \| Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	202	181	362	305
Other tire and related sales \| Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	24	25	45	46
Retail services and service related sales
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	235	239	449	457
Retail services and service related sales \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	191	196	366	377
Retail services and service related sales \| Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	44	43	83	80
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	4	126	11	259
Chemical sales \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	4	126	11	259
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	3	9	7	16
Other \| Americas
Disaggregation of Revenue [Line Items]
Net Sales by reportable segment	2	9	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	$ 1	$ 0	$ 2	$ 2