Pensions and Postretirement Benefits Other than Pensions (Components of the Company's Pension-Related Costs) (Details) (Pension Cost [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Service cost	$ 17.3	$ 23.1
Interest cost	36.9	39.2
Expected return on plan assets	(39.2)	(42.0)
Net amortization of prior service costs	1.1	1.2
Net amortization of plan net actuarial losses	9.0	15.5
Net periodic pension benefit cost	25.1	37.0
Total	25.1	37.0
Segment, Continuing Operations [Member]
Total	23.3	29.7
Discontinued Operations [Member]
Total	$ 1.8	$ 7.3