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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

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- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- References

No definition available.

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Debt - AerCap Trust & AICDC Notes (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Jun. 30, 2023	Feb. 28, 2023	Dec. 31, 2023	Jan. 31, 2024	Nov. 30, 2023	Sep. 30, 2023	Dec. 31, 2022
Maturities of Long-term Debt [Abstract]
2024			$ 6,211,679
2025			5,958,382
2026			8,491,596
2027			6,795,888
2028			7,744,105
Thereafter			11,493,882
4.125% Senior Notes Due 2023
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)		4.125%
Principal amount redeemed		$ 600,000
Unsecured
Maturities of Long-term Debt [Abstract]
Debt			34,295,349				$ 34,710,500
Unsecured \| AerCap Trust (b) & AICDC Notes (c)
Maturities of Long-term Debt [Abstract]
2024			5,165,349
2025			3,650,000
2026			5,250,000
2027			4,000,000
2028			5,300,000
Thereafter			7,850,000
Debt			$ 31,215,349				$ 32,700,000
Redemption price of debt instrument, percentage			100.00%
Unsecured \| AerCap Trust (b) & AICDC Notes (c) \| Minimum
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)			1.65%
Unsecured \| AerCap Trust (b) & AICDC Notes (c) \| Maximum
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)			6.50%
Unsecured \| 5.75% Senior Unsecured Debt Due 2028
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)	5.75%
Aggregate principal amount	$ 1,000,000
Unsecured \| 6.10% Senior Unsecured Debt Due 2027
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)						6.10%
Aggregate principal amount						$ 900,000
Unsecured \| 6.15% Senior Unsecured Debt Due 2030
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)						6.15%
Aggregate principal amount						$ 850,000
Unsecured \| 5.100% Senior Unsecured Debt Due 2029 \| Subsequent event
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)				5.10%
Aggregate principal amount				$ 800,000
Unsecured \| 5.300% Senior Unsecured Debt Due 2034 \| Subsequent event
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)				5.30%
Aggregate principal amount				$ 700,000
Unsecured \| 6.45% Senior Unsecured Notes Due 2027
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)					6.45%
Aggregate principal amount					$ 1,500,000
Senior Notes \| 4.5% Senior Notes Due 2023
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)	4.50%
Aggregate principal amount	$ 1,250,000
Principal amount redeemed	$ 1,000,000
Senior Notes \| 1.75% Senior Notes Due 2024
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)					1.75%
Debt instrument, repurchase amount					$ 356,000
Senior Notes \| 2.875% Senior Notes Due 2024
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)					2.875%
Debt instrument, repurchase amount					$ 276,000
Senior Notes \| 1.650% Senior Notes Due 2024
Maturities of Long-term Debt [Abstract]
Debt instrument, interest rate (in percentage)					1.65%
Debt instrument, repurchase amount					$ 1,000,000