Earnings per share - Additional Information (Details) - shares shares in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Shares
Earnings per share [line items]
Antidilutive share equivalents excluded (in shares)	2	4	5
Performance Shares
Earnings per share [line items]
Antidilutive share equivalents excluded (in shares)	24	21	14
Maximum \| Stock Option
Earnings per share [line items]
Antidilutive share equivalents excluded (in shares)	1	1	1

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

No definition available.

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Namespace Prefix:	nok_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration