CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) [Abstract]
REVENUES	$ 2,287.4	$ 2,053.7	$ 4,405.1	$ 3,858.0
COSTS AND EXPENSES
Cost of sales (exclusive of depreciation and amortization shown separately below)	1,625.0	1,448.9	3,119.1	2,729.3
Selling and administrative expenses	325.5	286.2	639.6	557.6
Depreciation and amortization	70.1	63.6	140.0	123.1
Interest, net	25.3	22.0	51.2	44.7
Other costs (see Note 3)	35.6	9.9	66.4	8.4
Total costs and expenses	2,081.5	1,830.6	4,016.3	3,463.1
Income before income taxes	205.9	223.1	388.8	394.9
Income tax provision	(65.5)	(48.5)	(100.0)	(86.3)
Net income	140.4	174.6	288.8	308.6
Earnings per common share:
Basic (in dollars per share)	$ 0.57	$ 0.71	$ 1.17	$ 1.25
Diluted (in dollars per share)	$ 0.57	$ 0.70	$ 1.16	$ 1.25
Shares used in computing earnings per common share:
Basic (in shares)	246.6	246.3	247.1	246.2
Diluted (in shares)	248.1	247.7	248.6	247.8
Comprehensive income	$ 91.5	$ 128.7	$ 163.0	$ 309.6