SHAREHOLDER'S EQUITY CARES Act Issuance (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended		21 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2022
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				1,455,437
Class of Warrant or Right, Outstanding				1,882,518
Adjustments to Additional Paid in Capital, Warrant Issued	$ 16	$ 14
US Treasury CARES Act Loan
Class of Warrant or Right [Line Items]
Adjustments to Additional Paid in Capital, Warrant Issued			$ 30
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		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