Condensed Statements of Cash Flows (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Operating Activities
Net income	$ 223.0	$ 62.8
Adjustments to reconcile net income to net cash and cash equivalents provided by (used for) operating activities:
Gain on remeasurement of investment in SunBelt	(181.4)	0
Earnings of non-consolidated affiliates	(8.5)	(22.8)
Other operating income - gains on disposition of property, plant and equipment	(4.8)	(1.5)
Stock-based compensation	4.3	5.1
Depreciation and amortization	74.1	64.8
Deferred income taxes	93.1	22.1
Qualified pension plan contributions	(0.7)	(7.3)
Qualified pension plan income	(19.5)	(18.4)
Common stock issued under employee benefit plans	0	1.0
Change in assets and liabilities:
Receivables	(79.6)	(47.8)
Income taxes receivable	3.5	6.9
Inventories	(6.7)	(33.5)
Other current assets	0.3	0.1
Accounts payable and accrued liabilities	11.6	10.4
Other assets	(0.2)	(1.6)
Other noncurrent liabilities	6.1	0.9
Other operating activities	(2.2)	(0.1)
Net operating activities	112.4	41.1
Investing Activities
Capital expenditures	(128.4)	(63.4)
Business acquired in purchase transaction, net of cash acquired	(123.4)	0
Proceeds from disposition of property, plant and equipment	6.2	2.9
Distributions from affiliated companies, net	1.1	9.5
Restricted cash activity	30.4	0
Other investing activities	2.3	(0.5)
Net investing activities	(211.8)	(51.5)
Financing Activities
Long-term debt repayments	0	(18.9)
Issuance of common stock	0	9.2
Common stock repurchased and retired	(2.2)	0
Stock options exercised	7.3	2.3
Excess tax benefits from stock options exercised	2.0	0.2
Dividends paid	(48.0)	(47.5)
Net financing activities	(40.9)	(54.7)
Net decrease in cash and cash equivalents	(140.3)	(65.1)
Cash and cash equivalents, beginning of period	458.6	458.5
Cash and cash equivalents, end of period	318.3	393.4
Cash paid for interest and income taxes:
Interest	19.6	20.0
Income taxes, net of refunds	34.4	(5.6)
Non-cash investing activities:
Capital expenditures included in accounts payable and accrued liabilities	$ (4.2)	$ 10.0