CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net Income	$ 139	$ 397	$ (4)	$ 266
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	104	98	206	195
Stock-based compensation and other			20	24
Special items - Impairment charges and other	146	(4)	221	14
Restructuring Charges	0	(23)	0	(12)
Changes in certain assets and liabilities:
Changes in deferred tax provision			(14)	(33)
Increase (Decrease) in Accounts Receivable			(115)	(86)
Increase (Decrease) in Contract with Customer, Liability			615	460
Increase in deferred revenue			83	69
Proceeds from Income Tax Refunds			260	0
Other - net			(37)	44
Net cash provided by operating activities			1,235	1,007
Property and equipment additions:
Aircraft and aircraft purchase deposits			(509)	(30)
Other flight equipment			(69)	(38)
Other property and equipment			(54)	(34)
Total property and equipment additions, including capitalized interest			(632)	(102)
Purchases of marketable securities			(1,410)	(2,524)
Sales and maturities of marketable securities			1,323	1,561
Other investing activities			(2)	(5)
Net cash used in investing activities			(721)	(1,070)
Cash flows from financing activities:
Proceeds from issuance of debt			0	363
Long-term debt payments			(239)	(681)
Other financing activities			33	37
Net cash provided by (used in) financing activities			(206)	(281)
Net increase in cash, cash equivalents, and restricted cash			308	(344)
Cash, cash equivalents, and restricted cash at beginning of year			494	1,386
Cash, cash equivalents, and restricted cash at end of the period	802	1,042	802	1,042
Cash paid during the period for:
Interest (net of amount capitalized)			35	61
Income taxes				0
Non-cash transactions:
Right-of-use assets acquired through operating leases			378	77
Reconciliation of cash, cash equivalents, and restricted cash at end of the period
Cash and cash equivalents	778	1,025	778	1,025
Restricted cash included in Prepaid expenses, assets held-for-sale and other current assets	24	17	24	17
Total cash, cash equivalents, and restricted cash at end of the period	$ 802	$ 1,042	$ 802	$ 1,042