XML 75 R63.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Subsequent Events Transaction-Related Costs (Details) $ in Millions | 3 Months Ended
--- | ---
Sep. 30, 2018 USD ($)
Subsequent Event [Line Items] |
Transaction-Related Selling General and Administrative Costs | $ 11.0
Transaction-Related Interest Expense | 3.7
Transaction-Related Interest Income | 0.4
Transaction-Related Other Expense | $ 10.3

X
- Definition Transaction-Related Interest Expense + References No definition available. + Details
Name: | ipg_TransactionRelatedInterestExpense
Namespace Prefix: | ipg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Transaction-Related Interest Income + References No definition available. + Details
Name: | ipg_TransactionRelatedInterestIncome
Namespace Prefix: | ipg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Transaction-Related Other Expense + References No definition available. + Details
Name: | ipg_TransactionRelatedOtherExpense
Namespace Prefix: | ipg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Transaction-Related Selling General and Administrative Costs + References No definition available. + Details
Name: | ipg_TransactionRelatedSellingGeneralandAdministrativeCosts
Namespace Prefix: | ipg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration