A component of equity representing the entity's cumulative undistributed earnings or deficit.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 78
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_78_e&doctype=Standard
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph IG6
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_IG6&doctype=Implementation%20Guidance
-URIDate 2018-03-16

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

New and amended standards and interpretations - IFRS 15 (Details) - EUR (€) € in Millions	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Disclosure of initial application of standards or interpretations [line items]
(Accumulated deficit)/retained earnings	€ (1,062)	€ 1,345	€ 1,147
IFRS 15
Disclosure of initial application of standards or interpretations [line items]
(Accumulated deficit)/retained earnings		€ (16)