CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED) (UA) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022
Cash Flows from Operating Activities:
Net cash provided by operating activities		$ 7,821	$ 4,908
Cash Flows from Investing Activities:
Capital expenditures, net of flight equipment purchase deposit returns		(5,105)	(2,280)
Purchases of short-term and other investments		(8,875)	(8,384)
Proceeds from sale of short-term and other investments		8,614	1,061
Proceeds from sale of property and equipment		20	184
Other, net		(17)	(23)
Net cash used in investing activities		(5,363)	(9,442)
Cash Flows from Financing Activities:
Proceeds from issuance of debt and other financing liabilities, net of discounts and fees		1,685	210
Payments of long-term debt, finance leases and other financing liabilities		(3,423)	(2,605)
Other, net		(31)	(77)
Net cash used in financing activities		(1,769)	(2,472)
Net increase (decrease) in cash, cash equivalents and restricted cash		689	(7,006)
Cash, cash equivalents and restricted cash at beginning of the period		7,421	18,533
Cash, cash equivalents and restricted cash at end of the period	[1]	8,110	11,527
Investing and Financing Activities Not Affecting Cash:
Property and equipment acquired through the issuance of debt, finance leases and other		677	0
Right-of-use assets acquired through operating leases		470	98
Lease modifications and lease conversions		438	61
Investment interests received in exchange for goods and services		25	93
United Airlines, Inc.
Cash Flows from Operating Activities:
Net cash provided by operating activities		7,790	4,834
Cash Flows from Investing Activities:
Capital expenditures, net of flight equipment purchase deposit returns		(5,105)	(2,280)
Purchases of short-term and other investments		(8,875)	(8,384)
Proceeds from sale of short-term and other investments		8,614	1,061
Proceeds from sale of property and equipment		20	184
Other, net		(17)	(23)
Net cash used in investing activities		(5,363)	(9,442)
Cash Flows from Financing Activities:
Proceeds from issuance of debt and other financing liabilities, net of discounts and fees		1,685	210
Payments of long-term debt, finance leases and other financing liabilities		(3,423)	(2,605)
Other, net		0	(3)
Net cash used in financing activities		(1,738)	(2,398)
Net increase (decrease) in cash, cash equivalents and restricted cash		689	(7,006)
Cash, cash equivalents and restricted cash at beginning of the period		7,421	18,533
Cash, cash equivalents and restricted cash at end of the period	[2]	8,110	11,527
Investing and Financing Activities Not Affecting Cash:
Property and equipment acquired through the issuance of debt, finance leases and other		677	0
Right-of-use assets acquired through operating leases		470	98
Lease modifications and lease conversions		438	61
Investment interests received in exchange for goods and services		$ 25	$ 93

[1] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet: Current assets:Cash and cash equivalents$7,478 $11,258 Restricted cash — Current392 61 Restricted cash — Non-Current240 208 Total cash, cash equivalents and restricted cash $8,110 $11,527 

[2] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet: Current assets:Cash and cash equivalents$7,478 $11,258 Restricted cash — Current392 61 Restricted cash — Non-Current240 208 Total cash, cash equivalents and restricted cash$8,110 $11,527