EATON SHAREHOLDERS' EQUITY - Net Income per Ordinary Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Equity [Abstract]
Net income attributable to Eaton ordinary shareholders	$ 2,462	$ 2,144	$ 1,410
Weighted-average number of ordinary shares outstanding - diluted (shares)	400.8	401.6	404.0
Less: dilutive effect of equity-based compensation (shares)	2.1	2.9	1.8
Weighted-average number of ordinary shares outstanding - basic (shares)	398.7	398.7	402.2
Net income per share attributable to Eaton ordinary shareholders - diluted (USD per share)	$ 6.14	$ 5.34	$ 3.49
Net income per share attributable to Eaton ordinary shareholders - basic (USD per share)	$ 6.17	$ 5.38	$ 3.51