Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017
Cash Flows from Operating Activities:
Net cash provided by operating activities		$ 5,080	$ 2,685
Cash Flows from Investing Activities:
Capital expenditures		(2,592)	(2,900)
Purchases of short-term and other investments		(1,975)	(2,584)
Proceeds from sale of short-term and other investments		1,979	2,380
Investment in affiliates		(139)	0
Proceeds from sale of property and equipment		30	8
Other, net		94	142
Net cash used in investing activities		(2,603)	(2,954)
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt and airport construction financing		1,332	2,119
Repurchases of common stock		(1,010)	(1,291)
Payments of long-term debt		(1,519)	(722)
Principal payments under capital leases		(98)	(84)
Other, net		(47)	(77)
Net cash used in financing activities		(1,342)	(55)
Net increase (decrease) in cash, cash equivalents and restricted cash		1,135	(324)
Cash, cash equivalents and restricted cash at beginning of the period		1,591	2,303
Cash, cash equivalents and restricted cash at end of the period	[1]	2,726	1,979
Investing and Financing Activities Not Affecting Cash:
Property and equipment acquired through the issuance of debt and capital leases		139	918
Airport construction financing		12	41
Operating lease conversions to capital lease		52	0
United Airlines, Inc.
Cash Flows from Operating Activities:
Net cash provided by operating activities		5,063	2,671
Cash Flows from Investing Activities:
Capital expenditures		(2,592)	(2,900)
Purchases of short-term investments and other investments		(1,975)	(2,584)
Proceeds from sale of short-term and other investments		1,979	2,380
Investment in affiliates		(139)	0
Proceeds from sale of property and equipment		30	8
Other, net		94	142
Net cash used in investing activities		(2,603)	(2,954)
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt and airport construction financing		1,332	2,119
Dividend to UAL		(1,010)	(722)
Payments of long-term debt		(1,519)	(1,291)
Principal payments under capital leases		(98)	(84)
Other, net		(30)	(63)
Net cash used in financing activities		(1,325)	(41)
Net increase (decrease) in cash, cash equivalents and restricted cash		1,135	(324)
Cash, cash equivalents and restricted cash at beginning of the period		1,585	2,297
Cash, cash equivalents and restricted cash at end of the period	[2]	2,720	1,973
Investing and Financing Activities Not Affecting Cash:
Property and equipment acquired through the issuance of debt and capital leases		139	918
Airport construction financing		12	41
Operating lease conversions to capital lease		$ 52	$ 0

[1] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet:Reconciliation of cash, cash equivalents and restricted cash: Current assets: Cash and cash equivalents$2,621 $1,870Restricted cash included in Prepaid expenses and other— 13Other assets: Restricted cash105 96Total cash, cash equivalents and restricted cash $2,726 $1,979

[2] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet:Reconciliation of cash, cash equivalents and restricted cash: Current assets: Cash and cash equivalents$2,615 $1,864Restricted cash included in Prepaid expenses and other— 13Other assets: Restricted cash105 96Total cash, cash equivalents and restricted cash $2,720 $1,973