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SHAREHOLDER'S EQUITY CARES Act Issuance (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Class of Warrant or Right [Line Items] |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 539,508 |
Class of Warrant or Right, Outstanding | 1,882,518 |
Adjustments to Additional Paid in Capital, Warrant Issued | $ 16 |
US Treasury CARES Act Loan |  |
Class of Warrant or Right [Line Items] |  |
Adjustments to Additional Paid in Capital, Warrant Issued |  | $ 6
PSP 1 Warrants |  |
Class of Warrant or Right [Line Items] |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 31.61 |
Class of Warrant or Right, Outstanding | 928,127 |
CARES Act Loan Program Warrants |  |
Class of Warrant or Right [Line Items] |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 31.61 |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  | 427,080
Class of Warrant or Right, Outstanding | 427,080 |
PSP 2 Warrants |  |
Class of Warrant or Right [Line Items] |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 52.25 |
Class of Warrant or Right, Outstanding | 305,499 |
PSP 3 Warrants |  |
Class of Warrant or Right [Line Items] |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 66.39 |
Class of Warrant or Right, Outstanding | 221,812 |

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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644 + Details
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