v3.23.3
EQUITY - Changes in Accumulated Other Comprehensive (Loss) Income (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period $ 17,988 $ 17,485 $ 17,075 $ 16,416 $ 16,656 $ 16,451 $ 17,075 $ 16,451
Other comprehensive income (loss) before reclassifications             50  
Amounts reclassified from Accumulated other comprehensive loss (income)             (32)  
Other comprehensive income (loss) attributable to Eaton ordinary shareholders (167) 53 132 (522) (444) 116 18 (850)
Balance at end of period 18,420 $ 17,988 17,485 $ 16,103 $ 16,416 $ 16,656 18,420 $ 16,103
Accumulated other comprehensive loss                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period     (3,946)       (3,946)  
Balance at end of period (3,927)           (3,927)  
Currency translation and related hedging instruments                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period     (3,264)       (3,264)  
Other comprehensive income (loss) before reclassifications             21  
Amounts reclassified from Accumulated other comprehensive loss (income)             (10)  
Other comprehensive income (loss) attributable to Eaton ordinary shareholders             11  
Balance at end of period (3,253)           (3,253)  
Pensions and other postretirement benefits                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period     (810)       (810)  
Other comprehensive income (loss) before reclassifications             (8)  
Amounts reclassified from Accumulated other comprehensive loss (income)             21  
Other comprehensive income (loss) attributable to Eaton ordinary shareholders             14  
Balance at end of period (796)           (796)  
Cash flow hedges                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period     $ 129       129  
Other comprehensive income (loss) before reclassifications             37  
Amounts reclassified from Accumulated other comprehensive loss (income)             (44)  
Other comprehensive income (loss) attributable to Eaton ordinary shareholders             (7)  
Balance at end of period $ 122           $ 122