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Share Based Compensation - Summary of Compensation Expense (Detail) kr in Millions | 12 Months Ended
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Dec. 31, 2021 SEK (kr)
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | kr 3,607
Key contributor plan [member] | Key Contributor Plan2021 |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 355
Key contributor plan [member] | Key Contributor Plan 2020 (KC Plan 2020) [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 899
Key contributor plan [member] | Key Contributor Plan2019 |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 777
Key contributor plan [member] | Key contributor plan 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 973
Cash-settled plans [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 3,372
Cash-settled plans [member] | Executive performance plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 368
Cash-settled plans [member] | Executive performance plan [member] | EPP 2021 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 17
Cash-settled plans [member] | Executive performance plan [member] | EPP 2020 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 90
Cash-settled plans [member] | Executive performance plan [member] | EPP 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 75
Cash-settled plans [member] | Executive performance plan [member] | EPP 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 186
Cash-settled plans [member] | Key contributor plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 3,004
Reporting year [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 1,346
Reporting year [member] | Key contributor plan [member] | Key Contributor Plan2021 |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 355
Reporting year [member] | Key contributor plan [member] | Key Contributor Plan 2020 (KC Plan 2020) [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 376
Reporting year [member] | Key contributor plan [member] | Key Contributor Plan2019 |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 194
Reporting year [member] | Key contributor plan [member] | Key contributor plan 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 204
Reporting year [member] | Cash-settled plans [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 1,253
Reporting year [member] | Cash-settled plans [member] | Executive performance plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 124
Reporting year [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2021 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 17
Reporting year [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2020 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 56
Reporting year [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 14
Reporting year [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 37
Reporting year [member] | Cash-settled plans [member] | Key contributor plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 1,129
2020 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 1,465
2020 [member] | Key contributor plan [member] | Key Contributor Plan 2020 (KC Plan 2020) [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 523
2020 [member] | Key contributor plan [member] | Key Contributor Plan2019 |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 335
2020 [member] | Key contributor plan [member] | Key contributor plan 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 368
2020 [member] | Cash-settled plans [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 1,386
2020 [member] | Cash-settled plans [member] | Executive performance plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 160
2020 [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2020 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 34
2020 [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 50
2020 [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 76
2020 [member] | Cash-settled plans [member] | Key contributor plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 1,226
2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 602
2019 [member] | Key contributor plan [member] | Key Contributor Plan2019 |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 248
2019 [member] | Key contributor plan [member] | Key contributor plan 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 245
2019 [member] | Cash-settled plans [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 557
2019 [member] | Cash-settled plans [member] | Executive performance plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 64
2019 [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 11
2019 [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 53
2019 [member] | Cash-settled plans [member] | Key contributor plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 493
2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 194
2018 [member] | Key contributor plan [member] | Key contributor plan 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 156
2018 [member] | Cash-settled plans [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 176
2018 [member] | Cash-settled plans [member] | Executive performance plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 20
2018 [member] | Cash-settled plans [member] | Executive performance plan [member] | EPP 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 20
2018 [member] | Cash-settled plans [member] | Key contributor plan [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 156
Executive team plans [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 235
Executive team plans [member] | LTV 2021 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 24
Executive team plans [member] | LTV 2020 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 54
Executive team plans [member] | LTV 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 73
Executive team plans [member] | LTV 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 84
Executive team plans [member] | Reporting year [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 93
Executive team plans [member] | Reporting year [member] | LTV 2021 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 24
Executive team plans [member] | Reporting year [member] | LTV 2020 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 31
Executive team plans [member] | Reporting year [member] | LTV 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 28
Executive team plans [member] | Reporting year [member] | LTV 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 10
Executive team plans [member] | 2020 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 79
Executive team plans [member] | 2020 [member] | LTV 2020 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 23
Executive team plans [member] | 2020 [member] | LTV 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 28
Executive team plans [member] | 2020 [member] | LTV 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 28
Executive team plans [member] | 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 45
Executive team plans [member] | 2019 [member] | LTV 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 17
Executive team plans [member] | 2019 [member] | LTV 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 28
Executive team plans [member] | 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 18
Executive team plans [member] | 2018 [member] | LTV 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 18
The President and CEO [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 113
The President and CEO [member] | Reporting year [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 44
The President and CEO [member] | 2020 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 38
The President and CEO [member] | 2019 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | 22
The President and CEO [member] | 2018 [member] |
Disclosure of terms and conditions of share based payment arrangement [line Items] |
Compensation expense charged | kr 9

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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