v3.26.1
Acquisitions - Additional Information (Detail) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 5 Months Ended 9 Months Ended
Jan. 31, 2026
Oct. 31, 2024
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2025
Business Acquisition [Line Items]              
Businesses acquisition, net of cash acquired           $ 66  
Segment revenues from external customers     $ 982 $ 923   2,735 $ 2,814
Carbon Black Manufacturing Facility [Member]              
Business Acquisition [Line Items]              
Business combination, voting equity interest acquired, percentage 100.00%            
Business acquisition, purchase price allocated to identifiable assets on relative fair value basis $ 68            
Business acquisition, purchase price allocation, property, plants and equipment 34            
Business acquisition, cash consideration 68            
Businesses acquisition, net of cash acquired $ 2            
Business combination, effective date of acquisition Jan. 31, 2026            
Acquisition and integration costs incurred           $ 2  
Segment revenues from external customers         $ 26    
Certain Assets and Licensed Related Technology [Member]              
Business Acquisition [Line Items]              
Business acquisition, purchase price allocated to identifiable assets on relative fair value basis   $ 27          
Business acquisition, purchase price allocation, property, plants and equipment   19          
Business acquisition, purchase price allocation, intangible assets   $ 8