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		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Service cost	$ 17.3	$ 23.0	$ 34.6	$ 46.1
Interest cost	37.0	39.1	73.9	78.3
Expected return on plan assets	(39.3)	(41.9)	(78.5)	(83.9)
Net amortization of prior service costs	1.0	1.2	2.1	2.4
Net amortization of plan net actuarial losses	9.0	15.5	18.0	31.0
Net periodic pension benefit cost	25.0	36.9	50.1	73.9
Net curtailment and settlement losses	(3.7)	0	(3.7)	0
Total	28.7	36.9	53.8	73.9
Segment, Continuing Operations [Member]
Total	26.9	29.7	50.2	59.4
Discontinued Operations [Member]
Total	$ 1.8	$ 7.2	$ 3.6	$ 14.5