XML 52 R39.htm IDEA: XBRL DOCUMENT v3.24.2.u1
RELATED PARTY TRANSACTIONS: (Details)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Dec. 31, 2012
item
MW
Dec. 31, 2023
USD ($)
Dec. 31, 2014
item
RELATED PARTY TRANSACTIONS:          
Related parties receivable current: $ 16.9     $ 27.3  
Affiliates          
RELATED PARTY TRANSACTIONS:          
Related parties receivable current: 16.9     27.3  
Other accrued liabilities 61.8     93.6  
Total purchases 191.6 $ 223.4      
Total sales $ 1.5 1.3      
Affiliates | Equity investment in affiliate          
RELATED PARTY TRANSACTIONS:          
Ownership percentage 44.20%        
Affiliates | Apu Coropuna S.R.L.          
RELATED PARTY TRANSACTIONS:          
Ownership percentage 30.00%        
Affiliates | Minimum          
RELATED PARTY TRANSACTIONS:          
Aggregate consideration of Material Affiliate Transaction to be be authorized by the General Counsel and CFO $ 8.0        
Affiliates | Maximum          
RELATED PARTY TRANSACTIONS:          
Aggregate consideration of Material Affiliate Transaction to be be authorized by the General Counsel and CFO 10.0        
Total sales 0.1 0.1      
Grupo Mexico and affiliates | Affiliates          
RELATED PARTY TRANSACTIONS:          
Total sales 37.6 45.6      
Asarco LLC ("Asarco") | Affiliates          
RELATED PARTY TRANSACTIONS:          
Related parties receivable current: 7.7     9.4  
Other accrued liabilities 14.9     13.8  
Total purchases 2.7 29.5      
Total sales 14.3 17.3      
AMMINCO Apoyo Administrativo, S.A. de C.V. ("AMMINCO") | Affiliates          
RELATED PARTY TRANSACTIONS:          
Other accrued liabilities 6.2     5.0  
Total purchases 5.0 5.0      
Eolica El Retiro, S.A.P.I. de C.V.          
RELATED PARTY TRANSACTIONS:          
Number of wind turbines | item         37
Eolica El Retiro, S.A.P.I. de C.V. | Affiliates          
RELATED PARTY TRANSACTIONS:          
Other accrued liabilities 2.6     0.2  
Total purchases $ 4.0 $ 1.5      
Percentage of supply to third-party energy users 37.00% 18.50%      
Ferrocarril Mexicano, S.A. de C.V. | Affiliates          
RELATED PARTY TRANSACTIONS:          
Other accrued liabilities $ 6.1     7.9  
Total purchases 24.0 $ 28.9      
Grupo Mexico | Affiliates          
RELATED PARTY TRANSACTIONS:          
Total purchases 1.7 1.8      
Grupo Mexico Servicios | Affiliates          
RELATED PARTY TRANSACTIONS:          
Other accrued liabilities 3.5     2.7  
Total purchases 10.1 10.1      
Donations 1.5 2.0      
MGE | Mexico          
RELATED PARTY TRANSACTIONS:          
Number of natural gas-fired combined cycle power generating units | item     2    
MGE | Affiliates          
RELATED PARTY TRANSACTIONS:          
Related parties receivable current: 8.1     17.1  
Other accrued liabilities 19.9     50.3  
Total purchases 92.3 116.4      
Total sales $ 23.3 $ 28.3      
MGE | Affiliates | Mexico          
RELATED PARTY TRANSACTIONS:          
Net total capacity (in megawatts) | MW     516.2    
Percentage of supply to third-party energy users 7.00% 4.00%      
Mexico Compania Constructora S.A de C.V. | Affiliates          
RELATED PARTY TRANSACTIONS:          
Other accrued liabilities $ 7.1     9.5  
Total purchases 44.0 $ 24.1      
Grupo Mexico Servicios de Ingenieria, S.A. de C.V. | Affiliates          
RELATED PARTY TRANSACTIONS:          
Other accrued liabilities 0.7     3.5  
Total purchases 9.5 7.9      
Boutique Bowling de Mexico, S.A. de C.V. | Affiliates          
RELATED PARTY TRANSACTIONS:          
Other accrued liabilities 0.4     0.3  
Total purchases 0.3 0.3      
Total sales 0.1 0.1      
Empresarios Industriales de Mexico, S.A. de C.V | Affiliates          
RELATED PARTY TRANSACTIONS:          
Related parties receivable current: 0.6     0.6  
Total sales 0.1        
Mexico Transportes Aereos S.A. de C.V. ("Mextransport") | Affiliates          
RELATED PARTY TRANSACTIONS:          
Related parties receivable current: 0.4     0.1  
Other accrued liabilities 0.1     0.3  
Total purchases 1.2 1.3      
Total sales 1.2 1.1      
Operadora de Cinemas S.A. de C.V. | Affiliates          
RELATED PARTY TRANSACTIONS:          
Related parties receivable current: 0.1     0.1  
Other accrued liabilities 0.3     0.1  
Total purchases 0.2 0.2      
Total sales $ 0.1 0.1      
Amminco Apoyo, Ferrocarril Mexicano and Operadora De Cinemas | Affiliates | Maximum          
RELATED PARTY TRANSACTIONS:          
Related party receivable and payable       $ 0.1  
Amminco Apoyo and Ferrocarril Mexicano | Affiliates | Maximum          
RELATED PARTY TRANSACTIONS:          
Threshold revenue from related parties   $ 0.1