XML 71 R64.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Commitments and Contingencies (Details) € in Millions, £ in Millions, SFr in Millions, NZD in Millions |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2015 USD ($) | Jun. 29, 2015 NZD | Jan. 26, 2015 USD ($) | Jan. 26, 2015 CHF (SFr) | Dec. 02, 2014 USD ($) | Dec. 02, 2014 CHF (SFr) | Jan. 02, 2014 GBP (£) | Sep. 14, 2010 USD ($) | Jun. 01, 2007 USD ($) | Jun. 01, 2007 CHF (SFr) | Aug. 31, 2015 USD ($) | Jun. 30, 2015 GBP (£) | Jun. 30, 2015 USD ($) | Mar. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2014 CHF (SFr) | Jun. 30, 2015 USD ($) | Jun. 30, 2015 EUR (€) | Jun. 30, 2015 USD ($) | Sep. 30, 2015 USD ($) | Apr. 30, 2014 GBP (£)
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Range of possible loss, minimum | $ 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |
Range of possible loss, maximum | 300,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 300,000,000 |
Letters of credit outstanding | 59,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 95,000,000 |  |  |  |  | 59,000,000 |
Maximum potential funding under commitments | 82,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 112,000,000 |  |  |  |  | 82,000,000 |
Potential Claim for Pension Advisory Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimate of possible loss | 68,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 68,000,000 | £ 45
Commitments to fund certain limited partnerships or subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum potential funding under commitments | 12,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 14,000,000 |  |  |  |  | 12,000,000 |
Commitments funded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,000,000 |
Opry Mills Mall Limited Partnership [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  |  |  |  | $ 200,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of coverage for damages contended by the insurers |  |  |  |  |  |  |  | 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Difference amount of damages sought by the client |  |  |  |  |  |  |  | $ 150,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded |  |  |  |  |  |  |  |  |  |  | $ 204,000,000 |  |  | $ 200,000,000 |  |  |  |  |  |  |
Philips [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought | 287,000,000 |  |  |  |  |  | £ 189 |  |  |  |  | £ 290 | $ 440,000,000 |  |  |  |  |  |  |  |
International Road Transport Union [Member] | Litigation Award [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  |  |  |  |  | $ 47,000,000 | SFr 46.0 |  |  |  |  |  |  |  |  |  |  |
Damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 28,000,000 | SFr 27.9 |  |  |  |  |
Damages awarded excluding interest and costs | 17,000,000 |  |  |  |  | SFr 16.8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Case settlement amount |  |  | $ 13,000,000 | SFr 12.8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Settlement, maximum liability |  |  | 9,000,000 | SFr 8.7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
International Road Transport Union [Member] | Litigation USD Denominated Award [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,000,000 |  |  |  |  |  |
Damages awarded excluding interest and costs |  |  |  |  | $ 3,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Case settlement amount |  |  | 4,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Settlement, maximum liability |  |  | $ 115,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
International Road Transport Union [Member] | Litigation Expenses and Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  |  |  |  |  | $ 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Huntington Ingalls Industries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Settlement payment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 150,000,000 |  |  |  |
Versicherung Aktiengesellschaft [Member] | Litigation Award [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Case settlement amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 1.6 | $ 2,000,000 |  |
Pending Litigation [Member] | Lyttleton Port Company Limited [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal, Guarantees and Indemnifications |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought | $ 117,500,000 | NZD 184 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition This element represents the amount of coverage as contended by the insurers for the loss. + References No definition available. + Details
Name: | aon_LossContingencyCoverageFromInsurers
Namespace Prefix: | aon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Loss Contingency Damages Awarded Value Excluding Interest and Costs + References No definition available. + Details
Name: | aon_LossContingencyDamagesAwardedValueExcludingInterestandCosts
Namespace Prefix: | aon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This element represents the difference amount of damages sought by the client after adjusting for amount claimed from insurers. + References No definition available. + Details
Name: | aon_LossContingencyDamagesDifferenceAmountSoughtValue
Namespace Prefix: | aon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Loss Contingency, Settlement Agreement, Terms, Maximum Liability + References No definition available. + Details
Name: | aon_LossContingencySettlementAgreementTermsMaximumLiability
Namespace Prefix: | aon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Payments made to fund limited partnership interest and reduce related guaranteed commitment. + References No definition available. + Details
Name: | aon_PartnershipObligationsFunded
Namespace Prefix: | aon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of damages awarded to the plaintiff in the legal matter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
Name: | us-gaap_LossContingencyDamagesAwardedValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The value (monetary amount) of the award the plaintiff seeks in the legal matter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyDamagesSoughtValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
Name: | us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The estimated maximum amount of possible loss from the contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
Name: | us-gaap_LossContingencyRangeOfPossibleLossMaximum
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The estimated minimum amount of possible loss from the contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
Name: | us-gaap_LossContingencyRangeOfPossibleLossMinimum
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of cash paid for the settlement of litigation or for other legal issues during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585 + Details
Name: | us-gaap_PaymentsForLegalSettlements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=aon_PotentialClaimforPensionAdvisoryServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_FinancialGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=aon_OpryMillsMallLimitedPartnershipMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=aon_PhilipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=aon_InternationalRoadTransportUnionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=aon_LitigationForeignCurrencyDenominatedAwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=aon_LitigationUSDDenominatedAwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=aon_LitigationExpensesandInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=aon_HuntingtonIngallsIndustriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=aon_VersicherungAktiengesellschaftMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=aon_LyttletonPortCompanyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |