XML 52 R39.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Income Taxes (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Income Taxes [Abstract] |
Income Before Income Taxes | Income before income taxes for the three years ended December 31, 2017 was (in millions):
| 2017 |  | 2016 |  | 2015
Domestic | $ | 832.4 |  |  | $ | 805.2 |  |  | $ | 803.3 |
International | 1,052.5 |  |  | 1,036.6 |  |  | 975.3 |
| $ | 1,884.9 |  |  | $ | 1,841.8 |  |  | $ | 1,778.6 |
Income Tax Expense | Income tax expense (benefit) for the three years ended December 31, 2017 was (in millions):
| 2017 |  | 2016 |  | 2015
Current: |  |  |  |  |
Federal | $ | 458.8 |  |  | $ | 381.8 |  |  | $ | 342.3 |
State and local | 36.5 |  |  | 12.6 |  |  | 29.9 |
International | 280.2 |  |  | 332.1 |  |  | 324.5 |
| 775.5 |  |  | 726.5 |  |  | 696.7 |
Deferred: |  |  |  |  |
Federal | (205.5 | ) |  | (88.2 | ) |  | (86.7 | )
State and local | 11.1 |  |  | 12.0 |  |  | 12.1 |
International | 115.1 |  |  | (49.8 | ) |  | (38.5 | )
| (79.3 | ) |  | (126.0 | ) |  | (113.1 | )
| $ | 696.2 |  |  | $ | 600.5 |  |  | $ | 583.6 |
Reconciliation from the Statutory U.S. Federal Income Tax Rate to Effective Tax Rate | The reconciliation from the statutory U.S. federal income tax rate to our effective tax rate is:
| 2017 |  | 2016 |  | 2015
Statutory U.S. federal income tax rate | 35.0 | % |  | 35.0 | % |  | 35.0 | %
State and local income taxes, net of federal income tax benefit | 1.3 |  |  | 0.9 |  |  | 1.5 |
Effect of Tax Act | 5.6 |  |  | — |  |  | — |
International tax rate differentials | (3.8 | ) |  | (4.0 | ) |  | (3.7 | )
Other | (1.2 | ) |  | 0.7 |  |  | — |
Effective tax rate | 36.9 | % |  | 32.6 | % |  | 32.8 | %
Components of Deferred Tax Assets and Liabilities | The components of deferred tax assets and liabilities at December 31, 2017 and 2016 were (in millions):
| 2017 |  | 2016
Deferred tax assets: |  |  |
Compensation | $ | 173.7 |  |  | $ | 307.5 |
Tax loss and credit carryforwards | 40.3 |  |  | 88.5 |
Basis differences from acquisitions | 18.0 |  |  | 24.3 |
Basis differences from short-term assets and liabilities | 39.5 |  |  | 36.2 |
Other | 17.8 |  |  | 18.7 |
Deferred tax assets | 289.3 |  |  | 475.2 |
Valuation allowance | (3.3 | ) |  | (3.0 | )
Net deferred tax assets | $ | 286.0 |  |  | $ | 472.2 |
Deferred tax liabilities: |  |  |
Goodwill and intangible assets | $ | 562.2 |  |  | $ | 802.7 |
Unremitted foreign earnings | 94.9 |  |  | 15.9 |
Financial instruments | 41.4 |  |  | 132.3 |
Basis differences from investments | 9.8 |  |  | 1.8 |
Deferred tax liabilities | $ | 708.3 |  |  | $ | 952.7 |
Long-term deferred tax assets | $ | 61.3 |  |  | $ | — |
Long-term deferred tax liabilities | $ | 483.6 |  |  | $ | 480.5 |
Reconciliation of Unrecognized Tax Benefits | A reconciliation of our unrecognized tax benefits at December 31, 2017 and 2016 is (in millions):
| 2017 |  | 2016
January 1 | $ | 116.9 |  |  | $ | 113.0 |
Additions: |  |  |
Current year tax positions | 67.1 |  |  | 20.0 |
Prior year tax positions | 5.5 |  |  | 6.5 |
Reduction of prior year tax positions | (16.5 | ) |  | (21.9 | )
Settlements | — |  |  | (0.7 | )
Foreign currency translation | 0.7 |  |  | — |
December 31 | $ | 173.7 |  |  | $ | 116.9 |

X
- Definition Income Taxes [Abstract] + References No definition available. + Details
Name: | omc_IncomeTaxesAbstract
Namespace Prefix: | omc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
Name: | us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
Name: | us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32840-109319 + Details
Name: | us-gaap_SummaryOfIncomeTaxContingenciesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration