Purchases and other expenses - Restructuring and integration costs - Current and non-current (Details) - EUR (€) € in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Purchases and other expenses [abstract]
Restructuring and integration provision	€ 216		€ 389	€ 377	€ 375
o/w non-current provision	96	€ 118	230	251
o/w current provision	€ 120	€ 128	€ 159	€ 126

The amount of non-current provision for restructuring. [Refer: Restructuring provision]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2019-01-01
-Paragraph 70
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_70&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_LongtermRestructuringProvision
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of provision for restructuring, such as the sale or termination of a line of business; closure of business locations in a country or region or relocation of activities from one country or region to another; changes in management structure; and fundamental reorganisations that have a material effect on the nature and focus of the entity's operations. [Refer: Other provisions]

+ References

+ Details

Name:	ifrs-full_RestructuringProvision
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of current provision for restructuring. [Refer: Restructuring provision]

+ References

+ Details

Name:	ifrs-full_ShorttermRestructuringProvision
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Purchases and other expenses [abstract]

+ References

No definition available.

+ Details

Name:	oran_PurchasesAndOtherExpensesAbstract
Namespace Prefix:	oran_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration