CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 811	$ 221
Marketable securities	1,314	1,300
Total cash and marketable securities	2,125	1,521
Receivables - net	279	323
Inventories and supplies - net	68	72
Prepaid expenses and other current assets	100	121
Total Current Assets	2,572	2,037
Property and Equipment
Aircraft and other flight equipment	8,228	8,549
Other property and equipment	1,343	1,306
Deposits for future flight equipment	590	533
Property and Equipment Total	10,161	10,388
Less accumulated depreciation and amortization	3,307	3,486
Total Property and Equipment - Net	6,854	6,902
Operating Lease, Right-of-Use Asset	1,584	1,711
Goodwill	1,943	1,943
Intangible assets - net	110	122
Other noncurrent assets	300	278
Other Assets	3,937	4,054
Total Assets	13,363	12,993
Current Liabilities
Accounts payable	119	146
Accrued wages, vacation and payroll taxes	316	470
Other accrued liabilities	382	431
Deferred revenue, current	478	750
Operating Lease, Liability, Current	266	269
Total Current Liabilities	3,730	3,201
Noncurrent Liabilities
Operating Lease, Liability, Noncurrent	1,375	1,439
Deferred revenue, noncurrent	1,545	1,240
Obligation for pension and postretirement medical benefits	577	571
Other liabilities	253	232
Other Liabilities and Credits Totals	4,415	4,197
Commitments and Contingencies
Shareholders' Equity
Preferred stock, $0.01 par value, Authorized: 5,000,000 shares, none issued or outstanding	0	0
Common stock, $0.01 par value, Authorized: 400,000,000 shares, Issued: 2020 - 131,934,957 shares; 2019 - 131,812,173 shares, Outstanding: 2020 - 122,585,013 shares; 2019 - 123,000,307 shares	1	1
Capital in excess of par value	314	305
Treasury stock (common), at cost: 2020 - 9,349,944 shares; 2019 - 8,811,866 shares	(674)	(643)
Accumulated other comprehensive loss	(482)	(465)
Retained earnings	4,856	5,133
Total Shareholders' Equity	4,015	4,331
Total Liabilities and Shareholders' Equity	13,363	12,993
Deferred Tax and Other Liabilities, Noncurrent	665	715
Contract with Customer, Liability, Current	1,110	900
Long-term Debt and Lease Obligation, Current	1,059	235
Long-term Debt and Lease Obligation	$ 1,203	$ 1,264

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).