CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating Activities:
Net earnings	$ 431.7	$ 332.6
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation, depletion and amortization	103.1	118.5
Deferred income taxes	(6.3)	16.6
Stock compensation expense	3.2	2.4
Excess tax benefit from stock-based compensation	(9.4)	(6.0)
Unrealized loss (gain) on derivatives	55.9	(0.7)
Loss (gain) on disposal of property, plant and equipment and non-core assets	3.9	(32.7)
Undistributed earnings of affiliates - net	(1.8)	(24.9)
Changes in:
Accounts receivable - net	(191.7)	(18.3)
Margin deposits	0.8	2.7
Inventories - net	43.5	(123.4)
Accrued income taxes	20.8	71.2
Accounts payable and accrued expenses	(9.3)	14.2
Customer advances	142.5	315.7
Other - net	16.3	3.3
Net cash provided by operating activities	603.2	671.2
Investing Activities:
Additions to property, plant and equipment	(64.3)	(54.9)
Proceeds from the sale of property, plant and equipment and non-core assets	3.9	39.2
Sales and maturities of short-term and auction rate securities		0.5
Deposits to asset retirement obligation funds	(2.2)
Other - net		31.3
Net cash (used in) provided by investing activities	(62.6)	16.1
Financing Activities:
Payments of long-term debt		(346.0)
Dividends paid on common stock	(26.2)	(7.1)
Distributions to noncontrolling interests	(20.9)	(6.3)
Issuances of common stock under employee stock plans	3.5	2.9
Excess tax benefit from stock-based compensation	9.4	6.0
Net cash used in financing activities	(34.2)	(350.5)
Effect of exchange rate changes on cash and cash equivalents	(0.1)	(0.4)
Increase in cash and cash equivalents	506.3	336.4
Cash and cash equivalents at beginning of period	1,207.0	797.7
Cash and cash equivalents at end of period	$ 1,713.3	$ 1,134.1