v3.25.4

Pension, Savings and Other Postretirement Benefit Plans - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items] |  |  |
Purchase of group annuity contract | $ 142 |  |
Rationalizations | 194 | $ 86 | $ 502
Prescription drug subsidy (less than) | $ 1 |  |
Benefit obligation discounted cash flows using a weighted average discount rate | 3.10% | 3.20% |
Defined contribution plans, contribution expenses | $ 118 | $ 134 | 131
Off-The-Road ("OTR") Tire Business |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Net termination benefits/curtailment charges | 1 |  |
Employee Severance |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Net termination benefits/curtailment charges | $ 4 |  |
Fixed Income Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 94.00% |  |
Defined Benefit Plan Private Credit And Private Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 6.00% |  |
Fulda Tire Manufacturing Facility |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Rationalizations |  |  | 1
Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Pension settlement charges | $ 126 |  |
Service cost | 27 |  |
Benefits for certain participant | 7 |  |
Actuarial (loss) gain | 1 | 1 |
Other Postretirement Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Service cost | 1 | 2 | 2
Actuarial (loss) gain | (4) | 11 |
Benefits cost (credit) | (2) | 6 | 8
Funded status at end of year | (231) | (232) |
United States |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Reduction of U.S. other postretirement benefit obligation |  | 28 |
United States | Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Settlement (charges) credit | (201) | 3 | (40)
Service cost | 6 | 7 | 8
Actuarial (loss) gain | (96) | 107 |
Benefits cost (credit) | 268 | 67 | $ 104
Funded status at end of year | $ 77 | $ 67 |
Discount rate for determining interest cost | 5.06% | 5.07% | 5.34%
Expected long term return on plan assets | 6.20% | 5.95% | 6.27%
United States | Pension Plans | Retirement Plan Name Cooper Tire Salary Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fund future obligations |  | $ 5 | $ 18
United States | Other Postretirement Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Benefits cost (credit) | $ (3) | 3 | $ 5
Funded status at end of year | $ 148 | $ 153 |
Discount rate for determining interest cost | 5.29% | 5.08% | 5.37%
Non-U.S. | Fixed Income Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 90.00% |  |
Non-U.S. | Defined Benefit Plan, Cash, Equity Securities And Real Estate Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target asset allocation | 10.00% |  |
Non-U.S. | Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Service cost | $ 15 | $ 19 | $ 18
Actuarial (loss) gain | 48 | 131 |
Benefits cost (credit) | 47 | 55 | $ 59
Funded status at end of year | $ (215) | $ (205) |
Discount rate for determining interest cost | 4.90% | 4.19% | 4.72%
Expected long term return on plan assets | 5.21% | 4.63% | 4.79%
Non-U.S. | Other Postretirement Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Benefits cost (credit) | $ 1 | $ 3 | $ 3
Funded status at end of year | $ 83 | $ 79 |
Discount rate for determining interest cost | 7.32% | 8.04% | 7.64%

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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (q) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of decrease in accumulated postretirement benefit obligation for government subsidy related to prescription drug benefits attributed to past service. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480266/715-60-50-3 + Details
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-3A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(7) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(7) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-18 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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- Definition Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-3A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476148/220-40-50-21 + Details
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