SEGMENT AND RELATED INFORMATION: (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of income and assets by segments

	Year Ended December 31, 2012
	(in millions)
	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate and other eliminations			Total Consolidated

Net sales outside of segments	$	3,338.5	$	378.5	$	2,952.3	$	—		$	6,669.3
Intersegment sales			135.1				(135.1		)	—
Cost of sales (exclusive of depreciation, amortization and depletion)	1,228.2		292.4		1,380.5		(131.8		)	2,769.3
Selling, general and administrative	34.4		14.6		48.6		3.7			101.3
Depreciation, amortization and depletion	145.6		25.2		160.3		(5.4		)	325.7
Legal fees related to the SCC shareholder derivative lawsuit							316.2			316.2
Exploration	5.2		28.2		14.5		—			47.9
Operating income	$	1,925.1	$	153.2	$	1,348.4	$	(317.8	)	3,108.9
Less:
Interest, net										(157.2		)
Gain on short term investment										10.6
Gain on sale of investment										18.2
Other income (expense)										(7.0		)
Income taxes										(1,080.9		)
Equity earnings of affiliate										48.7
Non-controlling interest										(6.7		)
Income attributable to SCC										$	1,934.6

Capital expenditures	$	804.4	$	56.0	$	257.9	$	(66.4	)	$	1,051.9
Property, net	$	2,444.9	$	350.9	$	2,231.4	$	129.5		$	5,156.7
Total assets	$	4,241.4	$	873.1	$	3,353.0	$	1,916.2		$	10,383.7

	Year Ended December 31, 2011
	(in millions)
	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate and other eliminations			Total Consolidated

Net sales outside of segments	$	3,212.1	$	420.1	$	3,186.5	$	—		$	6,818.7
Intersegment sales	—		126.1		—		(126.1		)	—
Cost of sales (exclusive of depreciation, amortization and depletion)	1,115.8		309.3		1,441.0		(102.9		)	2,763.2
Selling, general and Administrative	34.1		14.7		50.8		4.9			104.5
Depreciation, amortization and depletion	133.6		24.5		140.6		(10.6		)	288.1
Exploration	3.5		22.0		12.0		—			37.5
Operating income	$	1,925.1	$	175.7	$	1,542.1	$	(17.5	)	3,625.4
Less:
Interest, net										(172.8		)
Other income (expense)										(4.0		)
Income taxes										(1,104.3		)
Non-controlling interest										(7.9		)
Income attributable to SCC										$	2,336.4

Capital expenditures	$	357.6	$	48.7	$	205.5	$	1.1		$	612.9
Property, net	$	1,827.2	$	320.1	$	2,225.9	$	56.7		$	4,429.9
Total assets	$	3,471.6	$	743.4	$	3,164.0	$	683.7		$	8,062.7

	Year Ended December 31, 2010
	(in millions)
	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate and other eliminations			Total Consolidated

Net sales outside of segments	$	1,618.7	$	366.7	$	3,125.9	$	38.2		$	5,149.5
Intersegment sales	29.8		146.0		—		(175.8		)	—
Cost of sales (exclusive of depreciation, amortization and depletion)	751.7		307.4		1,206.2		(136.3		)	2,129.0
Selling, general and administrative	31.5		13.4		52.4		3.0			100.3
Depreciation, amortization and depletion	122.1		22.7		134.0		2.9			281.7
Exploration	5.2		15.5		13.6		—			34.3
Operating income	$	738.0	$	153.7	$	1,719.7	$	(7.2	)	2,604.2
Less:
Interest, net										(152.7		)
Other income (expense)										(20.7		)
Income taxes										(868.1		)
Non-controlling interest										(8.7		)
Income attributable to SCC										$	1,554.0

Capital expenditures	$	109.8	$	29.8	$	264.2	$	4.9		$	408.7
Property, net	$	1,583.5	$	296.3	$	2,164.7	$	50.5		$	4,095.0
Total assets	$	2,510.4	$	747.7	$	3,430.9	$	1,439.0		$	8,128.0

Schedule of sales value per segment

	Year Ended December 31, 2012
(in millions)	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate, Other & Eliminations			Total Consolidated
Copper	$	2,604.9	$	62.3	$	2,532.0	$	(62.3	)	$	5,136.9
Molybdenum	271.3		—		179.2		—			450.5
Silver	280.5		161.5		113.6		(60.3		)	495.3
Zinc	—		195.9		—		—			195.9
Other	181.8		93.9		127.5		(12.5		)	390.7
Total	$	3,338.5	$	513.6	$	2,952.3	$	(135.1	)	$	6,669.3

	Year Ended December 31, 2011
(in millions)	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate, Other & Eliminations			Total Consolidated
Copper	$	2,509.6	$	57.2	$	2,720.0	$	(57.2	)	$	5,229.6
Molybdenum	310.8		—		233.3		—			544.1
Silver	248.1		184.2		121.2		(61.1		)	492.4
Zinc	—		209.8		—		—			209.8
Other	143.6		95.0		112.0		(7.8		)	342.8
Total	$	3,212.1	$	546.2	$	3,186.5	$	(126.1	)	$	6,818.7

	Year Ended December 31, 2010
(in millions)	Mexican Open-pit		Mexican IMMSA Unit		Peruvian Operations		Corporate, Other & Eliminations			Total Consolidated

Copper	$	1,088.7	$	68.9	$	2,649.7	$	(61.5	)	$	3,745.8
Molybdenum	361.3		—		322.1		—			683.4
Silver	142.5		140.4		86.6		(61.8		)	307.7
Zinc	—		211.7		—		0.8			212.5
Other	56.0		91.7		67.5		(15.1		)	200.1
Total	$	1,648.5	$	512.7	$	3,125.9	$	(137.6	)	$	5,149.5

Schedule of net sales by countries

	Years Ended December 31,
(in millions)	2012		2011		2010
United States	$	1,567.4	$	2,103.7	$	1,281.3
Europe	1,365.1		1,292.1		1,066.6
Mexico	1,676.4		1,269.3		872.4
Peru	296.2		261.7		315.8
Brazil	449.0		598.5		446.6
Chile	443.5		515.8		503.0
Latin America, other	108.3		101.2		167.2
Asia	763.4		662.9		538.5
Derivative instruments	—		13.5		(41.9		)
Total	$	6,669.3	$	6,818.7	$	5,149.5

Schedule of provisionally priced copper and molybdenum sales outstanding

Following are the provisionally priced copper and molybdenum sales outstanding at December 31, 2012:

Pounds of copper	Priced at	Month of settlement
(millions)
19.7	3.59	January 2013
19.7	3.59	Total

Pounds of molybdenum	Market price	Month of settlement
(millions)
3.0	11.60	January 2013
3.1	11.60	February 2013
2.6	11.60	March 2013
0.1	11.60	April 2013
8.8	11.60	Total

Schedule of provisional sales price adjustments included in accounts receivable and net sales

Provisional sales price adjustments included in accounts receivable and net sales were as follows at December, 31 (in millions):

	As of December 31,
	2012		2011
Copper	$	2.9	$	1.4
Molybdenum	3.7		(3.4		)
Total	$	6.6	$	(2.0	)

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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