v3.25.4
Debt - Liabilities in financing activities (Details) - SEK (kr)
kr in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of reconciliation of liabilities arising from financing activities [abstract]    
Liabilities in financing activities at beginning of year kr 319,677 kr 324,066
Changes in liabilities arising from financing activities [abstract]    
Cash Flow 12,265 (18,445)
Exchange rate difference (26,063) 14,397
Unrealized changes in fair value 1,107 (342)
Accrued interest 1 1
Liabilities in financing activities at end of year 306,986 319,677
Senior debt    
Disclosure of reconciliation of liabilities arising from financing activities [abstract]    
Liabilities in financing activities at beginning of year 324,995 317,736
Changes in liabilities arising from financing activities [abstract]    
Cash Flow 19,543 (17,757)
Exchange rate difference (40,452) 23,139
Unrealized changes in fair value 547 1,877
Liabilities in financing activities at end of year 304,633 324,995
Lease liability    
Disclosure of reconciliation of liabilities arising from financing activities [abstract]    
Liabilities in financing activities at beginning of year 98 125
Changes in liabilities arising from financing activities [abstract]    
Cash Flow (30) (28)
Unrealized changes in fair value 17  
Accrued interest 1 1
Liabilities in financing activities at end of year 86 98
Derivatives, net    
Disclosure of reconciliation of liabilities arising from financing activities [abstract]    
Liabilities in financing activities at beginning of year (5,416) 6,205
Changes in liabilities arising from financing activities [abstract]    
Cash Flow (7,249) (660)
Exchange rate difference 14,389 (8,742)
Unrealized changes in fair value 543 (2,219)
Liabilities in financing activities at end of year kr 2,267 kr (5,416)