WORLDWIDE PANDEMIC - Payroll Support Program (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	2 Months Ended	5 Months Ended	6 Months Ended	12 Months Ended			14 Months Ended
	Jun. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021
Unusual or Infrequent Item, or Both [Line Items]
Promissory Note				$ 0	$ 0	$ 3,683
COVID - 19 | United States Department of Treasury
Unusual or Infrequent Item, or Both [Line Items]
Grant							$ 5,040
Promissory Note							2,068
Warrants							85
Total Payroll Support Proceeds							$ 7,193
Warrants (shares)				4,798
Coronavirus Aid, Relief, And Economic Security Act [Member] | United States Department of Treasury
Unusual or Infrequent Item, or Both [Line Items]
Grant		$ 2,337
Promissory Note		976
Warrants		40
Total Payroll Support Proceeds		$ 3,354
Warrants (shares)					2,676
Strike price (in USD per share)				$ 36.47
Consolidated Appropriations Act, 2021 [Member] | United States Department of Treasury
Unusual or Infrequent Item, or Both [Line Items]
Grant			$ 1,393
Promissory Note			566
Warrants			27
Total Payroll Support Proceeds			$ 1,987
Warrants (shares)				1,223
Strike price (in USD per share)				$ 46.28
American Rescue Plan Act Of 2021 [Member] | United States Department of Treasury
Unusual or Infrequent Item, or Both [Line Items]
Grant	$ 1,310
Promissory Note	526
Warrants	18
Total Payroll Support Proceeds	$ 1,852
Warrants (shares)				899
Strike price (in USD per share)				$ 58.51