Annual report [Section 13 and 15(d), not S-K Item 405]

Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value (Details)

v3.25.4
Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents $ 0 $ 1
Financial instruments 56 60
Debt 579 594
Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0 1
Financial instruments 56 60
Debt 0 0
Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0 0
Financial instruments 0 0
Debt 579 594
Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0 0
Financial instruments 0 0
Debt $ 0 $ 0