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Employees - Pensions and Similar Obligations Narrative (Details) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Pension Plans [Line Items]
Percentage of defined benefit liabilities (in percent)	10.00%
Increase in liability due to change in discount rate methodology	€ (342)	€ 1,414
Actual return on plan assets	1,958	1,494
Actual return on plan assets (excluding amounts in net finance income/charge)	2,302	1,930
Property and leases	1,894	1,623
Return on plan assets excluding amounts included in net finance income/(cost)	1,958	1,494	€ 2,385
Interest income, defined benefit plans	344
Property and Leases Occupied by Unilever
Disclosure Of Pension Plans [Line Items]
Property and leases	74	29
Unilever securities
Disclosure Of Pension Plans [Line Items]
Equity securities	€ 1	€ 9
Percentage of plan assets in equity securities (in percent)	0.002%	0.04%
Pension liabilities
Disclosure Of Pension Plans [Line Items]
Percentage of defined benefit liabilities (in percent)	96.00%
Special Benefits Trust
Disclosure Of Pension Plans [Line Items]
Excluded plan assets	€ 38	€ 44
United Kingdom
Disclosure Of Pension Plans [Line Items]
Increase in liability due to change in discount rate methodology	€ (225)	806
Percentage of long term trend future improvements	1.00%
Actual return on plan assets	€ 1,092	1,109
United Kingdom | Interest rate risk
Disclosure Of Pension Plans [Line Items]
Degree of hedging of liabilities, percentage	100.00%
The Netherlands
Disclosure Of Pension Plans [Line Items]
Increase in liability due to change in discount rate methodology	€ 23	354
Actual return on plan assets	€ 560	€ 206
The Netherlands | Interest rate risk
Disclosure Of Pension Plans [Line Items]
Degree of hedging of liabilities, percentage	35.00%
The Netherlands | Inflation rate risk
Disclosure Of Pension Plans [Line Items]
Degree of hedging of liabilities, percentage	19.00%
UK And Netherlands
Disclosure Of Pension Plans [Line Items]
Percentage of defined benefit pension liabilities	70.00%	70.00%
Other post- employment benefit plans
Disclosure Of Pension Plans [Line Items]
Period of level of medical cost inflation	5 years
Other post- employment benefit plans | Bottom of range
Disclosure Of Pension Plans [Line Items]
Rate of level of medical cost inflation (in percent)	7.00%
Liabilities
Disclosure Of Pension Plans [Line Items]
Percentage of defined benefit liabilities (in percent)	86.00%
Increase in liability due to change in discount rate methodology	€ (342)	€ 1,414
Liabilities | United Kingdom
Disclosure Of Pension Plans [Line Items]
Increase in liability due to change in discount rate methodology	(225)	806
Liabilities | The Netherlands
Disclosure Of Pension Plans [Line Items]
Increase in liability due to change in discount rate methodology	23	€ 354
Liabilities | Other post- employment benefit plans
Disclosure Of Pension Plans [Line Items]
Increase in liability due to change in discount rate methodology	€ 200

X

- Definition

Medical cost trend rate used as significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)]

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The amount of instruments held by the entity that provide evidence of a residual interest in the assets of another entity after deducting all of its liabilities.

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The amount of interest income arising from defined benefit plans. [Refer: Interest income; Post-employment benefit expense in profit or loss, defined benefit plans] [Contrast: Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount real estate contributes to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]]

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
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The amount of other comprehensive income, before tax, resulting from the return on plan assets, excluding amounts included in interest expense (income) arising from defined benefit plans. The return on plan assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Other comprehensive income; Defined benefit plans [member]; Plan assets [member]; Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans] [Contrast: Decrease (increase) in net defined benefit liability (asset) resulting from return on plan assets excluding interest income or expense]

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The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets, excluding amounts included in interest income or expense. The return on plan assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Plan assets [member]; Net defined benefit liability (asset); Actuarial assumptions [member]; Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income)]

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Actuarial assumption of medical cost trend period.

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Asset returns.

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No definition available.

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Disclosure Of Pension plan.

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Percentage of plan assets.

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Principal defined benefit plans as percentage of defined benefits plans.

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