EATON SHAREHOLDERS' EQUITY - Narrative (Details)			2 Months Ended	12 Months Ended
	Feb. 23, 2023 $ / shares	Feb. 23, 2022 USD ($)	Feb. 23, 2023	Dec. 31, 2022 USD ($) employee $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 $ / shares shares	Dec. 31, 2022 € / shares	Dec. 31, 2022 USD ($) holder $ / shares shares	Dec. 31, 2021 € / shares	Dec. 31, 2021 USD ($) $ / shares shares	Feb. 27, 2019 USD ($)
Subsequent Event [Line Items]
Ordinary shares authorized (shares)								750,000,000
Ordinary share par value (USD per share) | $ / shares								$ 0.01
Ordinary shares outstanding (shares)								397,800,000		398,800,000
Ordinary shares issued (shares)								397,800,000		398,800,000
Deferred ordinary shares authorized (shares)								40,000		40,000
Deferred ordinary shares par value (EUR per share) | € / shares							€ 1.00		€ 1.00
Deferred ordinary shares, shares issued and outstanding (shares)								40,000		40,000
Number of holders of record of Eaton ordinary shares | holder								10,034
Number of current and former employees who were shareholders through various Eaton plans | employee				14,158
Share repurchase program, authorized amount | $		$ 5,000,000,000									$ 5,000,000,000
Ordinary shares purchased (shares)				2,000,000	900,000
Stock repurchased (shares) | $				$ 286,000,000	$ 122,000,000
Deferred compensation plan trust of shares and marketable securities | $								$ 3,000,000		$ 4,000,000
Quarterly dividends declared per share (USD per share) | $ / shares				$ 3.24	$ 3.04	$ 2.92
Antidilutive securities excluded from computation of net income per ordinary share (shares)				100,000		600,000
2022 Program
Subsequent Event [Line Items]
Stock repurchase program, period in force		3 years
Preferred A Stock
Subsequent Event [Line Items]
Preferred stock issued (shares)								10,000		10,000
Preferred stock authorized (shares)								10,000		10,000
Preferred stock outstanding (shares)								10,000		10,000
Preferred stock, par value (USD per share) | $ / shares								$ 1.00		$ 1.00
Serial Preferred
Subsequent Event [Line Items]
Preferred stock authorized (shares)								10,000,000		10,000,000
Preferred stock outstanding (shares)								0		0
Preferred stock, par value (USD per share) | $ / shares								$ 0.01		$ 0.01
Subsequent Event
Subsequent Event [Line Items]
Quarterly dividends declared per share (USD per share) | $ / shares	$ 0.86
Dividend increase percentage over dividend paid in prior quarter (as a percent)			6.00%