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v3.25.1

Restructuring and related activities (2025 Restructuring Program) (Details) | 3 Months Ended
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Jun. 30, 2025 USD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and asset related charges - net |  | $ 208,000,000 | $ 45,000,000
2025 Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related workforce reduction |  | 1,500 |
Restructuring Reserve |  | $ 207,000,000 |
2025 Program | Maximum [Member] | Subsequent Event |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Book Value of Assets Under Operational Review | $ 275,000,000 |  |
2025 Program | Accrued and Other Current Liabilities [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve |  | 167,000,000 |
2025 Program | Other Noncurrent Obligations [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve |  | 40,000,000 |
2025 Program | Restructuring Implementation Costs | Additional Cash Expenditures |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Cost |  | 10,000,000 |
Segment Reporting, Reconciling Item, Corporate Nonsegment | 2025 Program | Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and asset related charges - net |  | $ 207,000,000 |

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