Employee Benefits (Fair Value) (Details) (USD $) In Millions, unless otherwise specified												12 Months Ended																12 Months Ended																																																				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Private equities [Member] fund	Dec. 31, 2012 Private equities [Member] fund	Dec. 31, 2013 Fixed Income Funds [Member] fund	Dec. 31, 2012 Fixed Income Funds [Member] fund	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Level 1 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Level 2 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Level 3 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Equities [Member] Level 1 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Equities [Member] Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Equities [Member] Level 2 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Equities [Member] Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Equities [Member] Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Equities [Member] Level 3 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Equities [Member] Fair Value [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Equities [Member] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Private equities [Member] Level 1 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Private equities [Member] Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Private equities [Member] Level 2 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Private equities [Member] Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Private equities [Member] Level 3 [Member]		Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Private equities [Member] Level 3 [Member]		Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Private equities [Member] Fair Value [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Private equities [Member] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Corporate [Member] Level 1 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Corporate [Member] Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Corporate [Member] Level 2 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Corporate [Member] Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Corporate [Member] Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Corporate [Member] Level 3 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Corporate [Member] Fair Value [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Corporate [Member] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Government [Member] Level 1 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Government [Member] Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Government [Member] Level 2 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Government [Member] Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Government [Member] Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Government [Member] Level 3 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Government [Member] Fair Value [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Government [Member] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Other Fixed Income Investments [Domain] Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Other Fixed Income Investments [Domain] Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Other Fixed Income Investments [Domain] Level 3 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Other Fixed Income Investments [Domain] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Absolute Return [Member] Level 1 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Absolute Return [Member] Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Absolute Return [Member] Level 2 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Absolute Return [Member] Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Absolute Return [Member] Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Absolute Return [Member] Level 3 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Absolute Return [Member] Fair Value [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Absolute Return [Member] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Interest bearing [Member] Level 1 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Interest bearing [Member] Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Interest bearing [Member] Level 2 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Interest bearing [Member] Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Interest bearing [Member] Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Interest bearing [Member] Level 3 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Interest bearing [Member] Fair Value [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Interest bearing [Member] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Total investments [Member] Level 1 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Total investments [Member] Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Total investments [Member] Level 2 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Total investments [Member] Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Total investments [Member] Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Total investments [Member] Level 3 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Total investments [Member] Fair Value [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Total investments [Member] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Other assets, net [Member] Fair Value [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Other assets, net [Member] Fair Value [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fixed income [Member] Level 3 [Member]		Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Fixed income [Member] Level 3 [Member]		Dec. 31, 2013 Minimum [Member]	Dec. 31, 2013 Maximum [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension assets at fair value	$ 808.4	$ 799.4	$ 727.7					$ 255.2	$ 238.9	$ 454.3	$ 484.7	$ 98.9	$ 74.3	$ 808.4	$ 799.4	$ 113.3	$ 79.9	$ 106.4	$ 92.5	$ 0	$ 0	$ 219.7	$ 172.4	$ 0	$ 0	$ 0	$ 0	$ 60.3	[1]	$ 38.8	[2]	$ 60.3	$ 38.8	$ 4.3	$ 15.3	$ 106.5	$ 89.9	$ 38.6	$ 35.5	$ 149.4	$ 140.7	$ 98.0	$ 109.1	$ 102.8	$ 145.2	$ 0	$ 0	$ 200.8	$ 254.3	$ 10.1	$ 0	$ 0	$ 10.1	$ 6.2	$ 0.6	$ 138.6	$ 157.1	$ 0	$ 0	$ 144.8	$ 157.7	$ 23.3	$ 34.0	$ 0	$ 0	$ 0	$ 0	$ 23.3	$ 34.0	$ 255.2	$ 238.9	$ 454.3	$ 484.7	$ 98.9	$ 74.3	$ 808.4	$ 797.9	$ 0	$ 1.5	$ 38.6	[3]	$ 35.5	[4]
Unfunded Commitments																												18.0	[1]	14.2	[2]																																																	16.0	[3]	3.0	[4]
Number of private equity funds investing in renewable solar energy				5	4
Number of fixed income funds investing in debt securities secured by royalty payments						3	2
Number of funds							3
Number of funds investing in Indian mezzanine debt							1
Number of funds for which redemptions are not permitted							2
Redemption notice period for assets with fair value estimated using NAV per share																																																																																				1 day	90 days
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at prior year end	808.4	799.4	727.7					255.2	238.9	454.3	484.7	74.3	43.6	808.4	799.4	113.3	79.9	106.4	92.5	0	0	219.7	172.4	0	0	0	0	38.8	[2]	29.0		60.3	38.8	4.3	15.3	106.5	89.9	38.6	35.5	149.4	140.7	98.0	109.1	102.8	145.2	0	0	200.8	254.3	10.1	0	0	10.1	6.2	0.6	138.6	157.1	0	0	144.8	157.7	23.3	34.0	0	0	0	0	23.3	34.0	255.2	238.9	454.3	484.7	98.9	74.3	808.4	797.9	0	1.5	35.5	[4]	14.6
Purchases												16.0	34.0															6.4		8.4																																																		9.6		25.6
Sales												(11.7)	(7.2)															(6.4)		(2.0)																																																		(5.3)		(5.2)
Unrealized gain (loss)												20.3	3.9															21.5		3.4																																																		(1.2)		0.5
Fair value of plan assets at year end	$ 808.4	$ 799.4	$ 727.7					$ 255.2	$ 238.9	$ 454.3	$ 484.7	$ 98.9	$ 74.3	$ 808.4	$ 799.4	$ 113.3	$ 79.9	$ 106.4	$ 92.5	$ 0	$ 0	$ 219.7	$ 172.4	$ 0	$ 0	$ 0	$ 0	$ 60.3	[1]	$ 38.8	[2]	$ 60.3	$ 38.8	$ 4.3	$ 15.3	$ 106.5	$ 89.9	$ 38.6	$ 35.5	$ 149.4	$ 140.7	$ 98.0	$ 109.1	$ 102.8	$ 145.2	$ 0	$ 0	$ 200.8	$ 254.3	$ 10.1	$ 0	$ 0	$ 10.1	$ 6.2	$ 0.6	$ 138.6	$ 157.1	$ 0	$ 0	$ 144.8	$ 157.7	$ 23.3	$ 34.0	$ 0	$ 0	$ 0	$ 0	$ 23.3	$ 34.0	$ 255.2	$ 238.9	$ 454.3	$ 484.7	$ 98.9	$ 74.3	$ 808.4	$ 797.9	$ 0	$ 1.5	$ 38.6	[3]	$ 35.5	[4]

[1] onsists of five private equity funds investing in renewable solar energy, acquisition of pharmaceutical company interests, Chinese technology and healthcare companies.

[2] Consists of four private equity funds investing in renewable solar energy, acquisition of pharmaceutical company interests and Chinese technology and healthcare companies.

[3] Consists of three fixed income funds which invest in debt securities secured by royalty payments from marketers of pharmaceutical products.

[4] Consists of three fixed income funds, two of which invest in debt securities secured by royalty payments from top-tier marketers of pharmaceutical products, and one which invests in Indian mezzanine debt.