XML 136 R121.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Share-Based Compensation (Summary Of Expected Sharebased Compensation Expenses Assuming Established Performance Criteria Are Met And No Forfeitures Occur) (Details) $ in Millions | Dec. 31, 2016 USD ($)
--- | ---
2017 [Member] |
Unrecognized Share-Based Compensation, Expected Period Of Recognition [Line Items] |
Expected share-based compensation expense | $ 98.1
2018 [Member] |
Unrecognized Share-Based Compensation, Expected Period Of Recognition [Line Items] |
Expected share-based compensation expense | 47.6
2019 [Member] |
Unrecognized Share-Based Compensation, Expected Period Of Recognition [Line Items] |
Expected share-based compensation expense | 7.9
2020 [Member] |
Unrecognized Share-Based Compensation, Expected Period Of Recognition [Line Items] |
Expected share-based compensation expense | $ 0.6

X
- Definition Unrecognized Share-Based Compensation, Expected Period Of Recognition [Line Items] + References No definition available. + Details
Name: | aer_UnrecognizedShareBasedCompensationExpectedPeriodOfRecognitionLineItems
Namespace Prefix: | aer_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=aer_ShareBasedCompensationAwardTrancheFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |