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SHAREHOLDERS' EQUITY - Stock Repurchase (Details) - USD ($) shares in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Feb. 10, 2021
Equity [Abstract] |  |  |  |
Stock repurchase program, authorized amount (in shares) |  |  |  | $ 2,000
Repurchase and retirement of common stock (in shares) | 17.6 | 18.8 | 20.1 |
Repurchase and retirement of common stock to offset the dilutive impact of the grant of long-term stock awards (in shares) | 0.7 | 0.4 | 0.6 |
Repurchase and retirement of common stock | $ 1,026 | $ 727 | $ 896 |
Remaining authorized repurchase amount | $ 1,128 |  |  |

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- Definition Number of shares that have been repurchased and retired during the period to offset the dilutive impact of the grant of long-term stock awards. + References No definition available. + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
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