Commitments and Contingencies Commitments and Contingencies (Details) $ in Millions	12 Months Ended
Dec. 31, 2015 USD ($)
Other (Income) Expense \| Presort Services
Loss Contingencies [Line Items]
Settlement amount	$ 7

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.

No definition available.

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