XML 307 R165.htm IDEA: XBRL DOCUMENT v3.24.0.1
Information Regarding Members of the Board of Directors and Group Management - Additional Information (Detail) - SEK (kr)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Jan. 01, 2023
Jan. 01, 2022
Disclosure of Information About Board Management and Employees [line items]        
Board fee description The Annual General Meeting 2023 resolved that non-employee Directors may choose to receive the Board fee (i.e., exclusive of Committee fee) as follows: i) 25% of the Board fee in cash and 75% in the form of synthetic shares, ii) 50% in cash and 50% in the form of synthetic shares, or iii) 75% in cash and 25% in the form of synthetic shares. Directors may also choose not to participate in the synthetic share program and receive 100% of the Board fee in cash. Committee fees are always paid in cash.      
Number of trading days 5 days      
Remuneration excluding social security charges kr 6,350,763      
Number of shares outstanding 3,344,151,735 3,334,151,735 3,334,151,735 3,334,151,735
Accounted debt kr 16,690,551      
Other Members of Executive Team [member]        
Disclosure of Information About Board Management and Employees [line items]        
Commitments for defined benefit based pensions including disability and survivor's pension 35,400,000 kr 37,600,000    
Commitments related to ITP and early retirement 28,300,000 30,000,000    
Commitment to disability and survivors pensions kr 7,100,000 kr 7,700,000    
Class B shares [member]        
Disclosure of Information About Board Management and Employees [line items]        
Weighted average market price kr 55.34 kr 59.91    
Number of shares outstanding 3,082,395,752 3,072,395,752 3,072,395,752 3,072,395,752
Synthetic shares [member]        
Disclosure of Information About Board Management and Employees [line items]        
Number of shares outstanding 241,184      
Board meeting attendance fee [member]        
Disclosure of Information About Board Management and Employees [line items]        
Fee and commission expense kr 2,250      
Committee meeting attendance fee [member]        
Disclosure of Information About Board Management and Employees [line items]        
Fee and commission expense 1,800      
Chairman [member] | Board fees [member]        
Disclosure of Information About Board Management and Employees [line items]        
Fee and commission expense 4,500,000      
Other directors [member] | Board fees [member]        
Disclosure of Information About Board Management and Employees [line items]        
Fee and commission expense 1,140,000      
Chairman of audit committee [member] | Board fees [member]        
Disclosure of Information About Board Management and Employees [line items]        
Fee and commission expense 495,000      
Other non-employee members of audit committee [member] | Board fees [member]        
Disclosure of Information About Board Management and Employees [line items]        
Fee and commission expense 285,000      
Chairmen of the finance and remuneration committees [member] | Board fees [member]        
Disclosure of Information About Board Management and Employees [line items]        
Fee and commission expense 210,000      
Other non-employee members of finance and remuneration committees [member] | Board fees [member]        
Disclosure of Information About Board Management and Employees [line items]        
Fee and commission expense kr 185,000