Retirement and Other Postretirement Benefit Plans (Details 4) (USD $) In Millions, unless otherwise specified	12 Months Ended																					12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 U.S. Non-qualified Defined Benefit Retirement Plans	Dec. 31, 2012 U.S. Non-qualified Defined Benefit Retirement Plans	Dec. 31, 2011 U.S. Non-qualified Defined Benefit Retirement Plans	Dec. 31, 2013 U.S. Non-qualified Defined Benefit Retirement Plans Minimum	Dec. 31, 2012 U.S. Non-qualified Defined Benefit Retirement Plans Minimum	Dec. 31, 2013 U.S. Non-qualified Defined Benefit Retirement Plans Maximum	Dec. 31, 2012 U.S. Non-qualified Defined Benefit Retirement Plans Maximum	Dec. 31, 2013 U.S. Postretirement Plans	Dec. 31, 2012 U.S. Postretirement Plans	Dec. 31, 2011 U.S. Postretirement Plans	Dec. 31, 2013 European Defined Benefit Retirement Plans	Dec. 31, 2012 European Defined Benefit Retirement Plans	Dec. 31, 2011 European Defined Benefit Retirement Plans	Dec. 31, 2013 European Defined Benefit Retirement Plans Minimum	Dec. 31, 2012 European Defined Benefit Retirement Plans Minimum	Dec. 31, 2011 European Defined Benefit Retirement Plans Minimum	Dec. 31, 2013 European Defined Benefit Retirement Plans Maximum	Dec. 31, 2012 European Defined Benefit Retirement Plans Maximum	Dec. 31, 2011 European Defined Benefit Retirement Plans Maximum	Dec. 31, 2013 United Kingdom defined benefit plan (the U.K. Plan)	Dec. 31, 2013 Retiree Medical Plans
Assumptions used to estimate the actuarial present value of benefit obligations
Discount rates (as a percent)				2.00%	3.20%	0.10%		4.00%		3.80%	2.75%	3.85%				3.00%	3.25%	4.50%	4.60%	4.50%	4.75%
Rate of increase in compensation (as a percent)			3.00%		3.00%		3.00%		5.80%				3.00%	3.00%	3.00%
Expected long-term rate of return on plan assets (as a percent)																4.00%	4.00%	4.25%	6.50%	6.50%	6.50%
Impact of one-percentage-point increase and a one-percentage-point decrease in the expected long-term rate of return and discount rate on periodic pension expense in next fiscal year
One-percentage-point increase in expected long-term rate of return																						$ (1.4)
One-percentage-point increase in discount rate			(0.1)																			(0.2)
One-percentage-point decrease in expected long-term rate of return																						1.4
One-percentage-point decrease in discount rate			0.3																			0.4
Impact of one-percentage-point increase and a one-percentage-point decrease in the discount rate on retirement obligation as of December 31, 2013
One-percentage-point increase in discount rate			(1.1)																			(21.2)	(0.4)
One-percentage-point decrease in discount rate			1.2																			26.8	0.4
Assumed annual rate of increase in the per capita cost of covered health care benefits for non-medical care (as a percent)	8.00%
Assumed annual rate of increase in the per capita cost of covered health care benefits for medical care (as a percent)	6.00%
Assumed annual rate of increase in the per capita cost of covered health care benefits for dental and vision care (as a percent)	5.00%
Ultimate annual rate of increase in the per capita cost of covered health care benefits for medical care (as a percent)	4.50%
Ultimate annual rate of increase in the per capita cost of covered health care benefits for dental and vision care (as a percent)	5.00%
Impact of a one-percentage-point increase in the assumed health care cost trend on postretirement benefit obligation	0.2	0.2
Impact of a one-percentage-point decrease in the assumed health care cost trend on postretirement benefit obligation	$ 0.2	$ 0.2