Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net sales	$ 1,640.1	$ 1,484.0	$ 4,760.6	$ 4,302.4
Cost of sales	(1,242.8)	(1,154.5)	(3,660.1)	(3,353.8)
Gross profit	397.3	329.5	1,100.5	948.6
Selling, general, and administrative expenses	(130.2)	(116.9)	(388.9)	(346.0)
Other expense, net	(24.8)	(6.2)	(32.4)	(15.2)
Income from operations	242.3	206.4	679.2	587.4
Interest expense, net	(25.4)	(23.4)	(74.6)	(67.5)
Income before taxes	216.9	183.0	604.6	519.9
Provision for income taxes	(77.8)	(63.7)	(204.9)	(181.0)
Net income	$ 139.1	$ 119.3	$ 399.7	$ 338.9
Net income per common share:
Basic	$ 1.47	$ 1.27	$ 4.24	$ 3.59
Diluted	1.47	1.26	4.23	3.58
Dividends declared per common share	$ 0.63	$ 0.63	$ 1.89	$ 1.73
Statements of Comprehensive Income:
Net income	$ 139.1	$ 119.3	$ 399.7	$ 338.9
Foreign currency translation adjustment	0.1	0.0	(0.2)	0.0
Reclassification adjustments to cash flow hedges included in net income, net of tax of $0.5 million, $0.5 million, $1.6 million, and $1.6 million	0.9	0.9	2.6	2.6
Amortization of pension and postretirement plans actuarial loss and prior service cost, net of tax of $1.2 million, $1.0 million, $3.7 million, and $3.1 million	1.9	1.8	6.2	5.0
Changes in unfunded employee benefit obligation net of tax of $2.0 million				3.1
Other comprehensive income	2.9	2.7	8.6	10.7
Comprehensive income	$ 142.0	$ 122.0	$ 408.3	$ 349.6

The accumulated change in the value of either the projected benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost, after tax. Also includes the cost (credit) resulting from a plan amendment that occurred during the period that has not been recognized in net periodic benefit cost, after tax.

No definition available.