Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
OPERATING ACTIVITIES
Net income	$ 207.0	$ 210.7
Reconciliation to net cash provided by operating activities:
Depreciation and amortization	88.9	89.9
Equity in earnings of unconsolidated affiliate	(13.8)	(13.2)
Dividends received from unconsolidated affiliate	6.3	10.5
Chapter 11 expenses, net of interest income	12.6	16.9
Chapter 11 expenses paid	(9.9)	(15.8)
Libby medical program settlement	19.6
Libby medical program settlement paid	(19.6)
Provision for income taxes	102.0	102.5
Income taxes paid, net of refunds	(41.6)	(38.3)
Tax benefits from stock-based compensation	(23.0)
Interest accrued on pre-petition liabilities subject to compromise	30.0	29.0
Restructuring expenses and related asset impairments	6.4	1.0
Payments for restructuring expenses and related asset impairments	(7.2)	(6.3)
Defined benefit pension expense	53.2	47.5
Payments under defined benefit pension arrangements	(122.5)	(260.0)
Provision for environmental remediation	1.8	1.6
Expenditures for environmental remediation	(8.1)	(7.7)
Changes in assets and liabilities, excluding effect of currency translation:
Trade accounts receivable	(3.7)	(86.8)
Inventories	20.6	(89.3)
Accounts payable	(6.0)	54.8
All other items, net	(10.2)	7.7
Net cash provided by operating activities	282.8	54.7
INVESTING ACTIVITIES
Capital expenditures	(94.0)	(97.1)
Businesses acquired, net of cash acquired	(40.5)	(55.8)
Transfer to restricted cash and cash equivalents	(24.1)	(27.7)
Other investing activities	0.5	6.8
Net cash used for investing activities	(158.1)	(173.8)
FINANCING ACTIVITIES
Net borrowings under credit arrangements	24.6	10.0
Proceeds from exercise of stock options	25.7	10.3
Tax benefits from stock-based compensation	23.0
Other financing activities	5.1	4.7
Net cash provided by financing activities	78.4	25.0
Effect of currency exchange rate changes on cash and cash equivalents	(0.2)	2.2
Increase (decrease) in cash and cash equivalents	202.9	(91.9)
Cash and cash equivalents, beginning of period	1,048.3	1,015.7
Cash and cash equivalents, end of period	$ 1,251.2	$ 923.8