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Noncontrolling Interests | 12 Months Ended
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Dec. 31, 2017
Noncontrolling Interests [Abstract] |
Noncontrolling Interests | Noncontrolling Interests Changes in the ownership interests in our less than 100% owned subsidiaries for the three years ended December 31, 2017 were (in millions):
| 2017 |  | 2016 |  | 2015
Net income attributed to Omnicom Group Inc. | $ | 1,088.4 |  |  | $ | 1,148.6 |  |  | $ | 1,093.9 |
Transfers (to) from noncontrolling interests: |  |  |  |  |
Increase in additional paid-in capital from sale of shares in noncontrolling interests | 1.8 |  |  | 2.0 |  |  | 1.7 |
Decrease in additional paid-in capital from purchase of shares in noncontrolling interests | (27.5 | ) |  | (89.7 | ) |  | (40.5 | )
Net transfers (to) from noncontrolling interests | (25.7 | ) |  | (87.7 | ) |  | (38.8 | )
Change from net income attributed to Omnicom Group Inc. and transfers (to) from noncontrolling interests | $ | 1,062.7 |  |  | $ | 1,060.9 |  |  | $ | 1,055.1 |

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- Definition Noncontrolling Interests [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -URI http://asc.fasb.org/topic&trid=2197479 + Details
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