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EATON SHAREHOLDERS' EQUITY - Narrative (Details)
 12 Months Ended
Feb. 26, 2026
$ / shares
Feb. 27, 2025
USD ($)
Feb. 23, 2022
USD ($)
Dec. 31, 2025
USD ($)
employee
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
$ / shares
shares
Dec. 31, 2025
€ / shares
Dec. 31, 2025
USD ($)
holder
$ / shares
shares
Dec. 31, 2024
€ / shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Class of Stock [Line Items]                    
Ordinary shares authorized (shares)               750,000,000   750,000,000
Ordinary share par value (USD per share) | $ / shares               $ 0.01   $ 0.01
Ordinary shares issued (in shares)               387,900,000   392,900,000
Ordinary shares outstanding (in shares)               387,900,000   392,900,000
Deferred ordinary shares authorized (in shares)               40,000   40,000
Deferred ordinary shares, shares issued and outstanding (in shares)               40,000   40,000
Deferred ordinary shares par value (EUR per share) | € / shares             € 1.00   € 1.00  
Number of holders of record of Eaton ordinary shares | holder               8,691    
Number of current and former employees who were shareholders through various Eaton plans | employee       13,766            
Ordinary shares purchased (in shares)           0        
Deferred compensation plan trust of shares and marketable securities | $               $ 3,000,000   $ 3,000,000
Quarterly dividends declared per share (USD per share) | $ / shares       $ 4.16 $ 3.76 $ 3.44        
Subsequent Event                    
Class of Stock [Line Items]                    
Quarterly dividends declared per share (USD per share) | $ / shares $ 1.10                  
Dividend increase percentage over dividend paid in prior quarter (as a percent) 6.00%                  
2022 Program                    
Class of Stock [Line Items]                    
Share repurchase program, authorized amount | $     $ 5,000,000,000.0              
Stock repurchase program, period in force     3 years              
2025 Program                    
Class of Stock [Line Items]                    
Share repurchase program, authorized amount | $   $ 9,000,000,000.0                
Stock repurchase program, period in force   3 years                
2025 and 2022 Program                    
Class of Stock [Line Items]                    
Ordinary shares purchased (in shares)       5,700,000 7,800,000          
Stock repurchased | $       $ 1,900,000,000 $ 2,500,000,000          
Preferred A Stock                    
Class of Stock [Line Items]                    
Preferred stock issued (in shares)               10,000   10,000
Preferred stock, par value (in USD per share) | $ / shares               $ 1.00   $ 1.00
Preferred stock authorized (in shares)               10,000   10,000
Preferred stock outstanding (in shares)               10,000   10,000
Serial Preferred                    
Class of Stock [Line Items]                    
Preferred stock, par value (in USD per share) | $ / shares               $ 0.01   $ 0.01
Preferred stock authorized (in shares)               10,000,000   10,000,000
Preferred stock outstanding (in shares)               0   0