Represents court order settlement payment received during the period.

No definition available.

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- Definition

Represents the value of other activity impacting treasury stock including dividend, interest and currency translation effect.

+ References

No definition available.

+ Details

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- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

+ References

No definition available.

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- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

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- Definition

Equity impact of the value of treasury stock (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

+ References

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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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- Definition

The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-SubTopic 30

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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STOCKHOLDERS' EQUITY: (Details) (USD $)	1 Months Ended									3 Months Ended				12 Months Ended		48 Months Ended	84 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended
STOCKHOLDERS' EQUITY: (Details) (USD $)	Dec. 31, 2014	Nov. 30, 2014	Oct. 31, 2014	Sep. 30, 2014	Aug. 31, 2014	Jul. 31, 2014	Jun. 30, 2014	Mar. 21, 2014	Jan. 31, 2014	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014	Oct. 09, 2012	Dec. 31, 2014	Dec. 31, 2012
Loss Contingency, Information about Litigation Matters [Abstract]
Legal fees related to SCC shareholder derivative lawsuit (Note 14)															$ 316,233,000us-gaap_LitigationSettlementExpense
Activity in treasury stock
Balance at the beginning of the period									1,216,599,000us-gaap_TreasuryStockValue										1,216,599,000us-gaap_TreasuryStockValue
Purchase of shares	87,900,000	38,000,000	168,000,000	141,400,000	158,100,000	23,900,000	13,000,000	2,900,000	49,600,000	293,900,000	323,400,000	13,000,000	52,500,000	281,400,000	147,300,000	730,800,000	1,842,300,000
Balance at the end of the period	1,900,686,000us-gaap_TreasuryStockValue									1,900,686,000us-gaap_TreasuryStockValue				1,216,599,000us-gaap_TreasuryStockValue			1,900,686,000us-gaap_TreasuryStockValue		1,900,686,000us-gaap_TreasuryStockValue
Subsidiaries [Member]
Activity in treasury stock
Treasury stock balance at the end of the period (in shares)	71,977,964									71,977,964				49,278,536			71,977,964		71,977,964
Parent Company (Grupo Mexico) common shares
Activity in treasury stock
Treasury stock balance at the end of the period (in shares)	89,950,310									89,950,310				75,262,919			89,950,310		89,950,310
Americas Mining Corporation Member
Loss Contingency, Information about Litigation Matters [Abstract]
SCC shareholder derivative lawsuit																		2,108,200,000
Legal fees related to SCC shareholder derivative lawsuit (Note 14)																		316,200,000
Accural - Legal fees related to SCC shareholders dervative lawsuit															316,200,000					316,200,000
TREASURY STOCK: \| Subsidiaries [Member]
Activity in treasury stock
Balance at the beginning of the period									1,011,000,000					729,800,000					1,011,000,000
Purchase of shares														281,400,000					682,800,000
Used for corporate purposes														(200,000)					(300,000)
Balance at the end of the period	1,693,500,000									1,693,500,000				1,011,000,000			1,693,500,000		1,693,500,000
TREASURY STOCK: \| Parent Company (Grupo Mexico) common shares
Activity in treasury stock
Balance at the beginning of the period									205,600,000					189,000,000					205,600,000
Other activity, including dividend, interest and currency translation effect														16,600,000					1,600,000
Balance at the end of the period	207,200,000									207,200,000				205,600,000			207,200,000		207,200,000
ADDITIONAL PAID-IN CAPITAL:
Loss Contingency, Information about Litigation Matters [Abstract]
SCC shareholder derivative lawsuit															$ (2,108,221,000)					$ (2,108,200,000)