XML 357 R114.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Employee Benefits - Summary of Defined Benefit Obligation (DBO) and Plan Assets for Pension and Other Benefit Obligation Plans (Detail) - MXN ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets $ (134,420,606) $ (128,400,391) $ (131,410,989) $ (154,847,297)
Reportable segments [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 134,188,504 128,125,182    
Reportable segments [member] | Mexico [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 118,286,212 110,960,878    
Reportable segments [member] | Puerto Rico [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 7,227,422 8,859,265    
Reportable segments [member] | Brazil [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 5,290,237 4,840,262    
Reportable segments [member] | Europe [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 3,384,633 3,464,777    
Defined benefit obligation [member] | Reportable segments [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 334,226,051 330,587,732    
Defined benefit obligation [member] | Reportable segments [member] | Mexico [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 293,551,400 285,775,547    
Defined benefit obligation [member] | Reportable segments [member] | Puerto Rico [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 22,244,771 26,747,454    
Defined benefit obligation [member] | Reportable segments [member] | Brazil [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 15,045,247 14,599,954    
Defined benefit obligation [member] | Reportable segments [member] | Europe [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 3,384,633 3,464,777    
Plan assets [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 204,092,587 208,526,619 218,327,182 191,549,583
Plan assets [member] | Reportable segments [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets (204,092,587) (208,526,619)    
Plan assets [member] | Reportable segments [member] | Mexico [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets (175,265,188) (174,814,669)    
Plan assets [member] | Reportable segments [member] | Puerto Rico [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets (15,017,349) (17,888,189)    
Plan assets [member] | Reportable segments [member] | Brazil [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets (13,810,050) (15,823,761)    
Effect of asset celling [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets (4,055,040) (6,064,069) $ (4,422,459) $ (3,393,640)
Effect of asset celling [member] | Reportable segments [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets 4,055,040 6,064,069    
Effect of asset celling [member] | Reportable segments [member] | Brazil [member]        
Disclosure of defined benefit plans [line items]        
Defined benefit obligation and plan assets $ 4,055,040 $ 6,064,069