CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net income	$ 49.3	$ 44.0
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	49.2	55.0
Excess tax benefit from share-based payment arrangements	0	0.2
Share-based compensation	4.5	4.9
Deferred income taxes	5.8	2.4
Income of unconsolidated affiliated company	(0.6)	(0.7)
(Gain) loss on sale of property and equipment	0.2	(0.3)
Net facility consolidation and other costs	(1.7)	0.3
Changes in working capital, excluding effect of acquisitions	(100.7)	(62.4)
Net change in deferred charges and credits	2.4	5.4
Net cash provided by operating activities	8.4	48.8
Cash flows from investing activities
Additions to property and equipment	(27.2)	(23.7)
Business acquisitions and adjustments, net of cash acquired	0.2	0
Proceeds from sale of property and equipment	0.3	1.3
Net cash used in investing activities	(26.7)	(22.4)
Cash flows from financing activities
Repayment of long-term debt	0	(1.1)
Net borrowing of commercial paper	129.2	4.5
Net borrowing of short-term debt	0.1	1.0
Cash dividends paid to shareholders	(27.2)	(26.1)
Common stock purchased for the treasury	(35.6)	0
Excess tax benefit from share-based payment arrangements	0	(0.2)
Stock incentive programs and related tax withholdings	(12.7)	(1.6)
Net cash (used in) provided by financing activities	53.8	(23.5)
Effect of exchange rates on cash and cash equivalents	3.1	0.3
Net increase in cash and cash equivalents	38.6	3.2
Cash and cash equivalents balance at beginning of year	114.1	109.8
Cash and cash equivalents balance at end of period	$ 152.7	$ 113.0