Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Supplemental guarantor financial information (Condensed consolidated statement of comprehensive income - AGAT/AICDC Notes) (Details)

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Supplemental guarantor financial information (Condensed consolidated statement of comprehensive income - AGAT/AICDC Notes) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Condensed Statement of Income Captions [Line Items]      
Net income (loss) $ 1,166,777 $ 1,017,497 $ 1,080,353
Other comprehensive income:      
Net change in fair value of derivatives, net of tax (89,918) (14,559) 14,918
Actuarial gain on pension obligations, net of tax (1,845) (1,539) 1,125
Total other comprehensive income (loss) (91,763) (16,098) 16,043
Comprehensive income 1,075,014 1,001,399 1,096,396
Comprehensive income attributable to non-controlling interest (21,083) (1,865) (4,202)
Total comprehensive income attributable to AerCap Holdings N.V. 1,053,931 999,534 1,092,194
AerCap Trust & AICDC Notes      
Condensed Statement of Income Captions [Line Items]      
Net income (loss) 1,167,000 1,017,000 1,080,000
Other comprehensive income:      
Net change in fair value of derivatives, net of tax (90,000) (14,000) 15,000
Actuarial gain on pension obligations, net of tax (2,000) (2,000) 1,000
Total other comprehensive income (loss) (92,000) (16,000) 16,000
Comprehensive income 1,075,000 1,001,000 1,096,000
Comprehensive income attributable to non-controlling interest (21,000) (1,000) (4,000)
Total comprehensive income attributable to AerCap Holdings N.V. 1,054,000 1,000,000 1,092,000
Eliminations | AerCap Trust & AICDC Notes      
Condensed Statement of Income Captions [Line Items]      
Net income (loss) (1,843,000) (1,985,000) (1,989,000)
Other comprehensive income:      
Net change in fair value of derivatives, net of tax 0 0 0
Actuarial gain on pension obligations, net of tax 0 0 0
Total other comprehensive income (loss) 0 0 0
Comprehensive income (1,843,000) (1,985,000) (1,989,000)
Comprehensive income attributable to non-controlling interest 0 0 0
Total comprehensive income attributable to AerCap Holdings N.V. (1,843,000) (1,985,000) (1,989,000)
AerCap Holdings N.V. | Reportable Legal Entities | AerCap Trust & AICDC Notes      
Condensed Statement of Income Captions [Line Items]      
Net income (loss) 1,146,000 1,016,000 1,076,000
Other comprehensive income:      
Net change in fair value of derivatives, net of tax 0 0 0
Actuarial gain on pension obligations, net of tax 0 0 0
Total other comprehensive income (loss) 0 0 0
Comprehensive income 1,146,000 1,016,000 1,076,000
Comprehensive income attributable to non-controlling interest 0 0 0
Total comprehensive income attributable to AerCap Holdings N.V. 1,146,000 1,016,000 1,076,000
Guarantors | Reportable Legal Entities | AerCap Trust & AICDC Notes      
Condensed Statement of Income Captions [Line Items]      
Net income (loss) 1,238,000 1,046,000 944,000
Other comprehensive income:      
Net change in fair value of derivatives, net of tax (84,000) (14,000) 13,000
Actuarial gain on pension obligations, net of tax (2,000) (2,000) 0
Total other comprehensive income (loss) (86,000) (16,000) 13,000
Comprehensive income 1,152,000 1,030,000 957,000
Comprehensive income attributable to non-controlling interest (17,000) 0 0
Total comprehensive income attributable to AerCap Holdings N.V. 1,135,000 1,030,000 957,000
Non- Guarantors | Reportable Legal Entities | AerCap Trust & AICDC Notes      
Condensed Statement of Income Captions [Line Items]      
Net income (loss) (264,000) (363,000) (349,000)
Other comprehensive income:      
Net change in fair value of derivatives, net of tax (6,000) 0 2,000
Actuarial gain on pension obligations, net of tax 0 0 1,000
Total other comprehensive income (loss) (6,000) 0 3,000
Comprehensive income (270,000) (363,000) (346,000)
Comprehensive income attributable to non-controlling interest (4,000) (1,000) (4,000)
Total comprehensive income attributable to AerCap Holdings N.V. (274,000) (364,000) (350,000)
AerCap Global Aviation Trust (a) | Reportable Legal Entities | AerCap Trust & AICDC Notes      
Condensed Statement of Income Captions [Line Items]      
Net income (loss) 542,000 724,000 775,000
Other comprehensive income:      
Net change in fair value of derivatives, net of tax 0 0 0
Actuarial gain on pension obligations, net of tax 0 0 0
Total other comprehensive income (loss) 0 0 0
Comprehensive income 542,000 724,000 775,000
Comprehensive income attributable to non-controlling interest 0 0 0
Total comprehensive income attributable to AerCap Holdings N.V. 542,000 724,000 775,000
AerCap Ireland Capital Designated Activity Company (a) | Reportable Legal Entities | AerCap Trust & AICDC Notes      
Condensed Statement of Income Captions [Line Items]      
Net income (loss) 348,000 579,000 623,000
Other comprehensive income:      
Net change in fair value of derivatives, net of tax 0 0 0
Actuarial gain on pension obligations, net of tax 0 0 0
Total other comprehensive income (loss) 0 0 0
Comprehensive income 348,000 579,000 623,000
Comprehensive income attributable to non-controlling interest 0 0 0
Total comprehensive income attributable to AerCap Holdings N.V. $ 348,000 $ 579,000 $ 623,000