CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)	Dec. 31, 2017 $ / €
CONSOLIDATED STATEMENTS OF CASH FLOWS
Noon buying rate used to translate financial statements for reader convenience	1.2022

The noon buying rate certified by the Federal Reserve Bank of New York.

No definition available.

Name:	sap_NoonBuyingRateForeignExchangeRate
Namespace Prefix:	sap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant