XML 107 R92.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Earnings Per Sahre Narrative (Details) | 12 Months Ended
--- | ---
Dec. 31, 2016
Earnings Per Share [Abstract] |
Increase in shares in the effect of dilutive securities due to adoption of new guidance ASU 2016-09 | 1.0

X
- Definition Additional shares included in the calculation of diluted EPS as a result of adopting Accounting Standards Update 2016-09 + References No definition available. + Details
Name: | ipg_IncrementalCommonSharesAttributabletoDilutiveEffectofShareBasedPaymentArrangementsduetoAdoptionofNewGuidance
Namespace Prefix: | ipg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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