Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 82.4	$ 68.6
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	2.0	70.6
Income (Loss) from continuing operations	80.4	(2.0)
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities of continuing operations:
Depreciation and amortization	68.3	65.6
Asset Impairment Charges	1.5	88.6
Deferred income tax expense (benefit)	(7.5)	3.1
Stock compensation expense	10.7	14.8
Changes in assets and liabilities:
Change in receivables	3.3	(9.5)
Change in other current assets	5.0	(10.5)
Change in deferred charges, net	0.7	1.2
Change in other assets and liabilities	(1.7)	(11.6)
Change in payables and other current liabilities	(12.2)	(41.6)
Net cash provided by operating activities of continuing operations	148.5	98.1
Net cash provided by (used in) operating activities of discontinued operations	0.8	8.1
Net cash provided by operating activities	149.3	106.2
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(43.2)	(65.6)
Proceeds from disposition of assets	47.6	0
Payments to acquire short-term investments	(120.5)	(19.0)
Proceeds from maturity of short-term investments	71.8	6.5
Acquisitions, net of cash acquired	(16.4)	0
Net cash used in investing activities of continuing operations	(60.7)	(78.1)
Net cash provided by (used in) investing activities of discontinued operations	0.3	433.1
Net cash provided by (used in) investing activities	(60.4)	355.0
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of credit facilities and other debt, net	(4.8)	(66.4)
Repurchase of common shares	(100.2)	(120.3)
Proceeds from exercise of stock options	2.8	6.8
Payments of Dividends	(17.7)	(5.7)
Excess tax benefits from share-based payment arrangements	2.2	0
Net cash used in financing activities of continuing operations	(117.7)	(185.6)
Cash (used in) provided by financing activities of discontinued operations	0	(0.1)
Net cash used in financing activities	(117.7)	(185.7)
Net increase (decrease) in cash and cash equivalents	(28.8)	275.5
Cash and cash equivalents at beginning of period	554.7	421.8
Cash and cash equivalents at end of period	$ 525.9	$ 697.3