XML 129 R108.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Income Taxes Change in Valuation Allowances (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Summary of Valuation Allowances |  |  |  |
Beginning balance |  | $ 255.6 | $ 275.1 | $ 332.2
Reversed to costs and expenses |  | (4.6) | (15.4) | (20.8)
(Reversed) charged to gross tax assets and other accounts 1 | [1] | (27.0) | 9.5 | (9.2)
Foreign currency translation |  | 19.3 | (13.6) | (27.1)
Ending balance |  | 243.3 | 255.6 | $ 275.1
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract] |  |  |  |
Operating Loss Carryforwards |  | 1,186.8 |  |
Deferred Tax Liabilities, Undistributed Foreign Earnings |  | 2,774.8 | $ 2,622.4 |
Foreign Tax Authority |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration |  | 656.6 |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |  | 530.2 |  |
State and Local Jurisdiction [Member] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |  | $ 45.0 |  |
Minimum | Foreign Tax Authority |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract] |  |  |  |
Operating Loss Carryforwards, Expiration Date |  | Jan. 01, 2018 |  |
Minimum | State and Local Jurisdiction [Member] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract] |  |  |  |
Operating Loss Carryforwards, Expiration Date |  | Jan. 01, 2018 |  |
Maximum | Foreign Tax Authority |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract] |  |  |  |
Operating Loss Carryforwards, Expiration Date |  | Jan. 01, 2037 |  |
Maximum | State and Local Jurisdiction [Member] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract] |  |  |  |
Operating Loss Carryforwards, Expiration Date |  | Jan. 01, 2037 |  |
[1] | Primarily represents changes to the valuation allowance related to the change of a corresponding deferred tax asset.

X
- Definition The amount of the change in the period in the valuation allowance charged (reversed) to costs and expenses for a specified deferred tax asset. + References No definition available. + Details
Name: | ipg_ValuationAllowanceDeferredTaxAssetChangeInAmountChargedReversedToCostsAndExpenses
Namespace Prefix: | ipg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of the change in the period in the valuation allowance charged (reversed) to gross tax assets and other accounts for a specified deferred tax asset. + References No definition available. + Details
Name: | ipg_ValuationAllowanceDeferredTaxAssetChangeInAmountChargedReversedToGrossTaxAssetsAndOtherAccounts
Namespace Prefix: | ipg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Valuation Allowance, Deferred Tax Asset, Change in Amount Charged (Reversed) to Foreign currency translation + References No definition available. + Details
Name: | ipg_ValuationAllowanceDeferredTaxAssetChangeinAmountChargedReversedtoForeigncurrencytranslation
Namespace Prefix: | ipg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsComponentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates. + References No definition available. + Details
Name: | us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates. + References No definition available. + Details
Name: | us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=96869850&loc=d3e28680-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 + Details
Name: | us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
Name: | us-gaap_OperatingLossCarryforwards
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
Name: | us-gaap_OperatingLossCarryforwardsExpirationDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
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_OperatingLossCarryforwardsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |