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CAPITAL STOCK (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Capital Stock Paragraph Details [Abstract] |  |
Preferred Stock, Shares Authorized | 40,000,000 |
Common Stock [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Common Stock, Shares Authorized | 2,000,000,000 |
Common Shares par value | $ 1 |
Treasury Stock [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Authorized Amount Of Common Stock Value Of Share Repurchase Program | $ 10,000 |
Stock Repurchase Program Remaining Authorized Repurchase Amount | $ 3,300 | $ 7,000
Stock Repurchased During Period Shares | (20,700,000) | (26,500,000)
Reacquired stock or repurchases of common stock | $ 3,714 | $ 4,400

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