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Net Sales - Summary of Net Sales (Detail) - SEK (kr) kr in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of net sales [line items] |  |  |
Net sales | kr 263,351 | kr 271,546 | kr 232,314
Of which IPR licensing revenues | 11,101 | 10,399 | 8,134
Of which export sales from Sweden | 125,242 | 153,833 | 140,898
Hardware [member] |  |  |
Disclosure of net sales [line items] |  |  |
Net sales | 99,642 | 119,215 | 106,399
Software [member] |  |  |
Disclosure of net sales [line items] |  |  |
Net sales | 59,123 | 54,809 | 45,798
Services [member] |  |  |
Disclosure of net sales [line items] |  |  |
Net sales | kr 104,586 | kr 97,522 | kr 80,117

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