XML 29 R86.htm IDEA: XBRL DOCUMENT v2.4.0.6
Employee Benefit Plans (Schedule of Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
General Discussion of Pension and Other Postretirement Benefits [Abstract]  
1-Percent Point Increase, Effect on total of service and interest cost $ 0.2
1-Percent Point Decrease, Effect on total of service and interest cost (0.2)
1-Percent Point Increase, Effect on postretirement benefit obligation 4.0
1-Percent Point Decrease, Effect on postretirement benefit obligation $ (3.3)