v3.26.1
Capital adequacy and liquidity situation - Own funds (Details) - Separate - SEK (kr)
kr in Millions
Jun. 30, 2026
Dec. 31, 2025
Disclosure of objectives, policies and processes for managing capital [line items]    
Common Equity Tier 1 (CET1) capital before regulatory adjustments kr 24,047 kr 23,617
Total regulatory adjustments to Common Equity Tier 1 capital (646) (493)
Total Common Equity Tier 1 capital 23,401 23,124
Total own funds 23,401 23,124
Share capital    
Disclosure of objectives, policies and processes for managing capital [line items]    
Common Equity Tier 1 (CET1) capital before regulatory adjustments 3,990 3,990
Retained earnings    
Disclosure of objectives, policies and processes for managing capital [line items]    
Common Equity Tier 1 (CET1) capital before regulatory adjustments 19,173 18,468
Accumulated other comprehensive income and other reserves    
Disclosure of objectives, policies and processes for managing capital [line items]    
Common Equity Tier 1 (CET1) capital before regulatory adjustments 368 456
Independently reviewed profit net of any foreseeable charge or dividend    
Disclosure of objectives, policies and processes for managing capital [line items]    
Common Equity Tier 1 (CET1) capital before regulatory adjustments 516 703
Additional value adjustments due to prudent valuations    
Disclosure of objectives, policies and processes for managing capital [line items]    
Total regulatory adjustments to Common Equity Tier 1 capital (93) (83)
Intangible assets    
Disclosure of objectives, policies and processes for managing capital [line items]    
Total regulatory adjustments to Common Equity Tier 1 capital (26) (22)
Gains or losses on liabilities valued at fair value resulting from changes in own credit standing    
Disclosure of objectives, policies and processes for managing capital [line items]    
Total regulatory adjustments to Common Equity Tier 1 capital (142) (229)
IRB shortfall of credit risk adjustments to expected losses    
Disclosure of objectives, policies and processes for managing capital [line items]    
Total regulatory adjustments to Common Equity Tier 1 capital (114) (144)
Insufficient coverage for non-performing exposures    
Disclosure of objectives, policies and processes for managing capital [line items]    
Total regulatory adjustments to Common Equity Tier 1 capital kr (271) kr (15)