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STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION (Common Stock) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2021 | Mar. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Class of Stock [Line Items] |  |  |  |  |
Authorized shares of capital stock |  |  | 3,050 |  |
Authorized shares of common stock |  |  | 3,000 |  |
Authorized shares of preferred stock |  |  | 50 |  |
Dividends declared per share of common stock (in dollars per share) |  |  | $ 0 | $ 0.20 | $ 0.20
Subsequent Event [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Dividends declared per share of common stock (in dollars per share) | $ 0.30 |  |  |  |
Percent of Cash Flows Allocated to Shareholder Returns After Debt Reduction | 50.00% |  |  |  |
Covid-19 [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common Stock, Dividends, Per Share, Suspended |  | $ 0.05 |  |  |
Minimum | Subsequent Event [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Payout Policy, Targeted Debt | $ 3,000 |  |  |  |
Maximum | Subsequent Event [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Payout Policy, Targeted Debt | $ 4,000 |  |  |  |

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- Definition Number of authorized capital units or capital shares. This element is relevant to issuers of face-amount certificates and registered investment companies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.16(a)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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