|
Balance Sheet Details Restricted Cash (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Cash and Cash Equivalents [Abstract] | |||
| Restricted Cash and Cash Equivalents | $ 107.8 | $ 120.5 | |
| Non Cash Financing Activities | $ 319.6 | $ 213.5 | $ 194.5 |