EATON SHAREHOLDERS' EQUITY - Net Income per Ordinary Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity [Abstract]
Net income attributable to Eaton ordinary shareholders	$ 3,218	$ 2,462	$ 2,144
Weighted-average number of ordinary shares outstanding - diluted (in shares)	401.1	400.8	401.6
Less: dilutive effect of equity-based compensation (in shares)	2.0	2.1	2.9
Weighted-average number of ordinary shares outstanding - basic (in shares)	399.1	398.7	398.7
Diluted (USD per share)	$ 8.02	$ 6.14	$ 5.34
Basic (USD per share)	$ 8.06	$ 6.17	$ 5.38