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Inventories - Summary of Inventories (Detail) - SEK (kr)
kr in Millions
Dec. 31, 2023
Dec. 31, 2022
Disclosure Of Inventories [Abstract]    
Finished products and components kr 24,222 kr 31,249
Contract work in progress 11,851 14,597
Inventories, net kr 36,073 kr 45,846