Statement Of Changes In Equity [Abstract]

Nel ASA - Filing #2549548

Concept	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	6 197 736 NOK	2 998 001 NOK	—	—	—	8 661 090 NOK	—	334 265 NOK	127 259 NOK	84,000 NOK	7 279 NOK	65 928 NOK	—	—	5 449 608 NOK	—	—	—	—	—	—	7 098 186 NOK	2 142 805 NOK	84,000 NOK	312 665 NOK	128 512 NOK	8 634 NOK	—	61 768 NOK	—	81,000 NOK	53 422 NOK	971 636 NOK	5 038 704 NOK	5 114 NOK	5 596 248 NOK	63 477 NOK	292 160 NOK
Changes in equity [abstract]
Comprehensive income [abstract]
Comprehensive income	840 536 NOK	—	—	855 196 NOK	—	1 253 NOK	—	—	—	—	—	—	—	—	15 913 NOK	—	—	—	1 119 882 NOK	1 171 169 NOK	13 748 NOK	—	—	—	—	—	—	—	—	—	65 035 NOK	—	—	—	—	—	—	—	—
Issue of equity	1 584 504 NOK	—	—	—	1 562 904 NOK	—	—	21 600 NOK	—	—	—	—	—	—	—	—	—	20 505 NOK	1 522 440 NOK	—	—	—	—	—	—	—	—	—	1 501 935 NOK	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	4 160 NOK	—	—	—	—	—	—	—	—	—	—	—	—	4 160 NOK	—	—	3,000 NOK	—	8 346 NOK	—	—	8 346 NOK	—	—	—	—	—	—	3,000 NOK	—	—	—	—	—	—	—	—	—	—