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SHAREHOLDERS' EQUITY (Details) - $ / shares |  | 12 Months Ended |
--- | --- | --- | ---
Jun. 03, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Feb. 28, 2015
Shareholder's Equity |  |  |  |  |
Common stock, par value per share (in dollars per share) |  | $ 1.00 | $ 1.00 |  |
Common stock, shares authorized |  | 800,000,000.0 | 800,000,000.0 |  |
Dividends declared per common share (in dollars per share) |  | $ 1.89 | $ 1.85 | $ 1.69 |
Discontinued Operations, Disposed of By Sale | ChampionX |  |  |  |  |
Shareholder's Equity |  |  |  |  |
Shares accepted | 4,955,552 |  |  |  |
Number of shares exchanged | 122,200,000 |  |  |  |
Common Stock |  |  |  |  |
Shareholder's Equity |  |  |  |  |
Common stock, par value per share (in dollars per share) |  | $ 1.00 | $ 1.00 | $ 1.00 |
Common stock, shares authorized |  | 800,000,000 | 800,000,000 | 800,000,000 |
Dividends declared per common share (in dollars per share) |  | $ 1.89 | $ 1.85 | $ 1.69 |
Common stock, shares authorized to be repurchased |  |  |  |  | 20,000,000
Reacquired shares (in shares) |  | 761,245 | 1,986,241 |  |
Remaining shares authorized to be repurchased |  | 6,239,946 |  |  |
Number of shares reacquired through the open market |  | 565,064 | 1,846,384 |  |
Number of shares that have been repurchased through the exercise of stock options and vesting of stock awards |  | 196,181 | 139,857 |  |
Undesignated preferred stock |  |  |  |  |
Shareholder's Equity |  |  |  |  |
Preferred stock, shares authorized |  | 15,000,000 |  |  |

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