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EATON SHAREHOLDERS' EQUITY - Narrative (Details) |  |  |  | 12 Months Ended |  |
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Feb. 26, 2026 $ / shares | Feb. 27, 2025 USD ($) | Feb. 23, 2022 USD ($) | Dec. 31, 2025 USD ($) employee $ / shares shares | Dec. 31, 2024 USD ($) $ / shares shares | Dec. 31, 2023 $ / shares shares | Dec. 31, 2025 € / shares | Dec. 31, 2025 USD ($) holder $ / shares shares | Dec. 31, 2024 € / shares | Dec. 31, 2024 USD ($) $ / shares shares
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Ordinary shares authorized (shares) |  |  |  |  |  |  |  | 750,000,000 |  | 750,000,000
Ordinary share par value (USD per share) | $ / shares |  |  |  |  |  |  |  | $ 0.01 |  | $ 0.01
Ordinary shares issued (in shares) |  |  |  |  |  |  |  | 387,900,000 |  | 392,900,000
Ordinary shares outstanding (in shares) |  |  |  |  |  |  |  | 387,900,000 |  | 392,900,000
Deferred ordinary shares authorized (in shares) |  |  |  |  |  |  |  | 40,000 |  | 40,000
Deferred ordinary shares, shares issued and outstanding (in shares) |  |  |  |  |  |  |  | 40,000 |  | 40,000
Deferred ordinary shares par value (EUR per share) | € / shares |  |  |  |  |  |  | € 1.00 |  | € 1.00 |
Number of holders of record of Eaton ordinary shares | holder |  |  |  |  |  |  |  | 8,691 |  |
Number of current and former employees who were shareholders through various Eaton plans | employee |  |  |  | 13,766 |  |  |  |  |  |
Ordinary shares purchased (in shares) |  |  |  |  |  | 0 |  |  |  |
Deferred compensation plan trust of shares and marketable securities | $ |  |  |  |  |  |  |  | $ 3,000,000 |  | $ 3,000,000
Quarterly dividends declared per share (USD per share) | $ / shares |  |  |  | $ 4.16 | $ 3.76 | $ 3.44 |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Quarterly dividends declared per share (USD per share) | $ / shares | $ 1.10 |  |  |  |  |  |  |  |  |
Dividend increase percentage over dividend paid in prior quarter (as a percent) | 6.00% |  |  |  |  |  |  |  |  |
2022 Program |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Share repurchase program, authorized amount | $ |  |  | $ 5,000,000,000.0 |  |  |  |  |  |  |
Stock repurchase program, period in force |  |  | 3 years |  |  |  |  |  |  |
2025 Program |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Share repurchase program, authorized amount | $ |  | $ 9,000,000,000.0 |  |  |  |  |  |  |  |
Stock repurchase program, period in force |  | 3 years |  |  |  |  |  |  |  |
2025 and 2022 Program |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Ordinary shares purchased (in shares) |  |  |  | 5,700,000 | 7,800,000 |  |  |  |  |
Stock repurchased | $ |  |  |  | $ 1,900,000,000 | $ 2,500,000,000 |  |  |  |  |
Preferred A Stock |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred stock issued (in shares) |  |  |  |  |  |  |  | 10,000 |  | 10,000
Preferred stock, par value (in USD per share) | $ / shares |  |  |  |  |  |  |  | $ 1.00 |  | $ 1.00
Preferred stock authorized (in shares) |  |  |  |  |  |  |  | 10,000 |  | 10,000
Preferred stock outstanding (in shares) |  |  |  |  |  |  |  | 10,000 |  | 10,000
Serial Preferred |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred stock, par value (in USD per share) | $ / shares |  |  |  |  |  |  |  | $ 0.01 |  | $ 0.01
Preferred stock authorized (in shares) |  |  |  |  |  |  |  | 10,000,000 |  | 10,000,000
Preferred stock outstanding (in shares) |  |  |  |  |  |  |  | 0 |  | 0

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