v3.26.1
Restructuring and Impairment - Restructuring Liability (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Mar. 31, 2025
Restructuring Reserve [Roll Forward]        
Balance as of beginning of period $ 64 $ 28 $ 28  
Restructuring and impairment expenses, net 19 85    
Cash payments (14) (10)    
Foreign currency translation and other   (53)    
Balance as of end of period 69 50 64 $ 28
Balance Sheet Location [Axis]: us-gaap:AccruedLiabilitiesCurrent        
Restructuring Reserve [Roll Forward]        
Balance as of end of period 46 29    
Structural Cost Improvement and Efficiency        
Restructuring Reserve [Roll Forward]        
Restructuring and impairment expenses, net 0 54    
Other Benefit Plans        
Restructuring Reserve [Roll Forward]        
Settlement and curtailment gain 0 11    
2025 Efficiency Plan        
Restructuring Reserve [Roll Forward]        
Restructuring and impairment expenses, net 15 83 163 2
Settlement and curtailment gain   11 11  
Operating Segments | North America        
Restructuring Reserve [Roll Forward]        
Balance as of beginning of period 23 20 20  
Restructuring and impairment expenses, net 4 47    
Cash payments (5) (5)    
Foreign currency translation and other   (35)    
Balance as of end of period 22 27 23 20
Operating Segments | North America | 2025 Efficiency Plan        
Restructuring Reserve [Roll Forward]        
Restructuring and impairment expenses, net 1   57 2
Settlement and curtailment gain     11  
Operating Segments | Europe        
Restructuring Reserve [Roll Forward]        
Balance as of beginning of period 26 1 1  
Restructuring and impairment expenses, net 12 8    
Cash payments (2) (1)    
Foreign currency translation and other   1    
Balance as of end of period 36 9 26 1
Operating Segments | Europe | 2025 Efficiency Plan        
Restructuring Reserve [Roll Forward]        
Restructuring and impairment expenses, net 12   31 0
Settlement and curtailment gain     0  
Operating Segments | Asia        
Restructuring Reserve [Roll Forward]        
Balance as of beginning of period 1 0 0  
Restructuring and impairment expenses, net 0 20    
Cash payments (1) (1)    
Foreign currency translation and other   (19)    
Balance as of end of period 0 0 1 0
Operating Segments | Asia | 2025 Efficiency Plan        
Restructuring Reserve [Roll Forward]        
Restructuring and impairment expenses, net 0   42 0
Settlement and curtailment gain     0  
Operating Segments | South America        
Restructuring Reserve [Roll Forward]        
Balance as of beginning of period 7 6 6  
Restructuring and impairment expenses, net 1 1    
Cash payments (1) 0    
Foreign currency translation and other   0    
Balance as of end of period 7 7 7 6
Operating Segments | South America | 2025 Efficiency Plan        
Restructuring Reserve [Roll Forward]        
Restructuring and impairment expenses, net 0   1 0
Settlement and curtailment gain     0  
Other Operations        
Restructuring Reserve [Roll Forward]        
Balance as of beginning of period 7 1 1  
Restructuring and impairment expenses, net 2 9    
Cash payments (5) (3)    
Foreign currency translation and other   0    
Balance as of end of period 4 $ 7 7 1
Other Operations | 2025 Efficiency Plan        
Restructuring Reserve [Roll Forward]        
Restructuring and impairment expenses, net $ 2   32 $ 0
Settlement and curtailment gain     $ 0