EATON SHAREHOLDERS' EQUITY - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 19,069	$ 17,075	$ 16,451
Other comprehensive income (loss) before reclassifications	(450)
Amounts reclassified from Accumulated other comprehensive loss (income)	14
Other comprehensive income (loss) attributable to Eaton ordinary shareholders	(436)	39	(313)
Balance at end of period	18,531	19,069	17,075
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(3,906)
Balance at end of period	(4,342)	(3,906)
Currency translation and related hedging instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(3,029)
Other comprehensive income (loss) before reclassifications	(355)
Amounts reclassified from Accumulated other comprehensive loss (income)	(15)
Other comprehensive income (loss) attributable to Eaton ordinary shareholders	(370)
Balance at end of period	(3,399)	(3,029)
Pensions and other postretirement benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(995)
Other comprehensive income (loss) before reclassifications	(90)
Amounts reclassified from Accumulated other comprehensive loss (income)	41	24	89
Other comprehensive income (loss) attributable to Eaton ordinary shareholders	(49)
Balance at end of period	(1,044)	(995)
Cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	118
Other comprehensive income (loss) before reclassifications	(5)
Amounts reclassified from Accumulated other comprehensive loss (income)	(12)	(61)	$ (7)
Other comprehensive income (loss) attributable to Eaton ordinary shareholders	(17)
Balance at end of period	$ 101	$ 118