The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Investments - Narrative (Details) - USD ($)	Sep. 30, 2023	Aug. 15, 2023	Dec. 31, 2022
Wheels Up
Investments [Line Items]
Liquidity threshold		$ 100,000,000
Ownership interest (percent)	39.00%		21.00%
Voting rights, shares held threshold	29.90%
Wheels Up \| Line of Credit
Investments [Line Items]
Line of credit maximum capacity	$ 500,000,000
Wheels Up \| Line of Credit \| New Lender
Investments [Line Items]
Line of credit maximum capacity		50,000,000
Wheels Up \| Line of Credit \| Delta
Investments [Line Items]
Line of credit maximum capacity		100,000,000
Line of credit		0
Wheels Up \| Line of Credit \| Secured debt
Investments [Line Items]
Debt instrument amount		350,000,000
Wheels Up \| Line of Credit \| Secured debt \| Delta
Investments [Line Items]
Debt instrument amount		$ 150,000,000
Wheels Up
Investments [Line Items]
Equity issuable		80.00%
Wheels Up \| Maximum
Investments [Line Items]
Equity issuable		95.00%