Financial assets, liabilities and financial result (excluding Orange Bank) - Financial assets of telecom activities - Additional information (Details) - EUR (€) € in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of financial assets [line items]
Non-current	€ 1,208	€ 2,282	€ 2,247
Elimination of intersegment amounts [member]
Disclosure of financial assets [line items]
Non-current	€ (27)		€ (27)

The amount of non-current financial assets that the entity does not separately disclose in the same statement or note. [Refer: Other financial assets]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 54
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_d&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_OtherNoncurrentFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant