|
Other Liabilities (Details 1) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Activity of self-insurance reserves | |||
| Less: Current portion | $ (114.4) | $ (112.7) | $ (110.9) |
|
Self Insurance [Member]
|
|||
| Activity of self-insurance reserves | |||
| Self-insurance reserves, beginning balance | 417.2 | 412.9 | 408.1 |
| Additions charged to expense | 367.3 | 364.9 | 481.3 |
| Payments | (372.1) | (368.9) | (489.7) |
| Accretion expense | 5.9 | 8.3 | 13.2 |
| Self-insurance reserves, ending balance | 418.3 | 417.2 | 412.9 |
| Long-term portion | $ 303.9 | $ 304.5 | $ 302.0 |