Pensions and Postretirement Benefits Other than Pensions (Components of the Company's Pension-Related Costs) (Details) - Pension Cost [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Service cost	$ 18.8	$ 17.3	$ 37.7	$ 34.6
Interest cost	32.6	37.0	65.2	73.9
Expected return on plan assets	(39.6)	(39.3)	(79.2)	(78.5)
Net amortization of prior service costs	0.8	1.0	1.6	2.1
Net amortization of plan net actuarial losses	15.5	9.0	30.9	18.0
Net periodic pension benefit cost	28.1	25.0	56.2	50.1
Net curtailment and settlement losses	0.0	(3.7)	0.0	(3.7)
Total	28.1	28.7	56.2	53.8
Segment, Continuing Operations [Member]
Total	25.4	26.9	50.9	50.2
Discontinued Operations [Member]
Total	$ 2.7	$ 1.8	$ 5.3	$ 3.6