|
Retirement Benefits - Narrative (Details) (USD $)
In Millions, unless otherwise specified |
9 Months Ended |
|---|---|
|
Sep. 30, 2014
|
|
| Net periodic pension cost (credit) [Line Items] | |
| Employer contributions | $ 87.2 |
|
Primary U.S. retirement plan [Member]
|
|
| Retirement Benefit Plan Remeasurements [Abstract] | |
| Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year | $ 0 |