Employee Benefits (Weighted Average Assumptions - Net Periodic Benefit Cost) (Details) (Other Postretirement Benefit Plans, Defined Benefit, USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended
	Jan. 03, 2011	Dec. 31, 2011	Dec. 31, 2011 Net Periodic Benefit Costs	Dec. 31, 2010 Net Periodic Benefit Costs	Dec. 31, 2009 Net Periodic Benefit Costs
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate			5.50%	5.90%	6.00%
Expected long-term return on plan assets	5.20%		5.20%	5.20%	5.90%
Initial			8.50%	8.50%	9.00%
Ultimate			5.00%	5.00%	5.00%
Year ultimate reached			2018	2017	2017
Annual Rate Increase of Covered Health Care Benefits		8.50%
Percentage of Gradual Decrease of Health Care Benefit Rates		5.00%
Defined Benefit Plan, One Percentage Point Change, Increase or Decrease		1.00%
Defined Benefit Plan, Effect of One Percentage Point Increase on Benefit Obligations		$ 22.8
Defined Benefit Plan, Effect of One Percentage Point Decrease on Benefit Obligations		18.3
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components		1.6
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components		$ 1.2