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Restructuring - Summary of Restructuring Costs (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | May 06, 2025
Restructuring Cost And Reserve [Line Items] |  |  |  |  |
Total Restructuring Costs | $ 4 | $ 12 | $ 44 | $ 45 |
Inception to Date | 180 |  | 180 |  |
Estimated Remaining Cost | 25 |  | 25 |  |
Estimated Total Cost | 205 |  | 205 |  |
Transformation Program |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |
Total Restructuring Costs | 0 | 12 | 4 | 45 |
Inception to Date | 140 |  | 140 |  |
Estimated Remaining Cost | 0 |  | 0 |  |
Estimated Total Cost | 140 |  | 140 |  |
Transformation Program | Severance and Related Benefits |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |
Total Restructuring Costs | 0 | 8 | 2 | 18 |
Inception to Date | 45 |  | 45 |  |
Estimated Remaining Cost | 0 |  | 0 |  |
Estimated Total Cost | 45 |  | 45 |  |
Transformation Program | Other Restructuring Costs |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |
Total Restructuring Costs | 0 | 4 | 2 | 27 |
Inception to Date | 95 |  | 95 |  |
Estimated Remaining Cost | 0 |  | 0 |  |
Estimated Total Cost | 95 |  | 95 |  |
Post-Separation Plan |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |
Total Restructuring Costs | 4 | 0 | 40 | 0 |
Inception to Date | 40 |  | 40 |  |
Estimated Remaining Cost | 25 |  | 25 |  |
Estimated Total Cost | 65 |  | 65 |  | $ 65
Post-Separation Plan | Severance and Related Benefits |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |
Total Restructuring Costs | 0 | 0 | 20 | 0 |
Inception to Date | 20 |  | 20 |  |
Estimated Remaining Cost | 0 |  | 0 |  |
Estimated Total Cost | 20 |  | 20 |  | $ 20
Post-Separation Plan | Other Restructuring Costs |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |
Total Restructuring Costs | 4 | $ 0 | 20 | $ 0 |
Inception to Date | 20 |  | 20 |  |
Estimated Remaining Cost | 25 |  | 25 |  |
Estimated Total Cost | $ 45 |  | $ 45 |  |

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- Definition Amount of costs incurred to date for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
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- Definition Amount expected to be recognized in earnings for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
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