Employee Benefits Investment Policy and Strategy Narrative (Details)	12 Months Ended
	Dec. 31, 2013
U.S. Pension Plan [Member] | Equity investments [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target allocation percentage	49.00%
U.S. Pension Plan [Member] | Fixed income investments [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target allocation percentage	30.00%
U.S. Pension Plan [Member] | Other Investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target allocation percentage	21.00%
U.K. and Non-U.S. Pension Plan [Member] | Equity investments [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocation percentage	31.00%
U.K. and Non-U.S. Pension Plan [Member] | Fixed income investments [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual allocation percentage	69.00%