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Subordinated Notes, Ownership, Percentage

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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.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Variable interest entities (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) aircraft	Dec. 31, 2020 USD ($)
Variable interest entity \| AerFunding
Variable Interest Entity [Line Items]
Ownership (in percentage)	5.00%
Subordinated notes ownership (in percentage)	100.00%
Amount outstanding	$ 783.5
Senior debt facility	$ 2,104.1
Variable interest entity \| Aercap Partners 767
Variable Interest Entity [Line Items]
Subordinated debt		$ 32.6
Number of aircraft sold \| aircraft	2
Variable interest entity \| AerCap Partners I and Aercap Partners 767
Variable Interest Entity [Line Items]
Ownership percentage	50.00%
Variable interest entity \| AerCap Partners I and Aercap Partners 767 \| Deucalion Aviation Funds
Variable Interest Entity [Line Items]
Ownership percentage	50.00%
Variable interest entity \| AerCap Partners I
Variable Interest Entity [Line Items]
Subordinated debt	$ 54.4
Parent company \| AerCap Partners I
Variable Interest Entity [Line Items]
Subordinated debt	27.2
Parent company \| Aercap Partners 767
Variable Interest Entity [Line Items]
Subordinated debt		16.3
AerCap Partners I \| Deucalion Aviation Funds
Variable Interest Entity [Line Items]
Subordinated debt	$ 27.2
Aercap Partners 767 \| Deucalion Aviation Funds
Variable Interest Entity [Line Items]
Subordinated debt		$ 16.3