Other Financial Assets (Details) € in Millions, $ in Millions	Dec. 31, 2017 USD ($)	Dec. 31, 2017 EUR (€)	Dec. 31, 2016 EUR (€)
Other Financial Assets
Loans and other financial receivables - current		€ 793	€ 834
Debt investments - current		39	195
Equity investments - current		0	1
Available-for-sale financial assets - current		39	196
Derivatives - current		158	94
Investments in associates - current		0	0
Total - current	$ 1,190	990	1,124
Loans and other receivables - non-current		260	266
Debt investments - non-current		0	0
Equity investments - non-current		827	952
Available-for-sale financial assets - non-current		827	952
Derivatives - non-current		36	102
Investments in associates - non-current		32	38
Total - non-current	$ 1,388	1,155	1,358
Loans and other financial receivables		1,054	1,100
Debt investments		39	195
Equity investments		827	953
Available-for-sale financial assets		865	1,148
Derivatives		194	196
Investments in associates		32	38
Total		€ 2,145	€ 2,482

The amount of current derivative financial assets. [Refer: Derivative financial assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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- Definition

The amount of current financial assets available-for-sale. [Refer: Financial assets available-for-sale; Current financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2018-01-01
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- Definition

The amount of instruments representing indebtedness held by the entity.

+ References

+ Details

Name:	ifrs-full_DebtInstrumentsHeld
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- Definition

The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

+ Details

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- References

No definition available.

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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.

+ References

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- Definition

The amount of non-derivative financial assets that are designated as available for sale or are not classified as (a) loans and receivables; (b) held-to-maturity investments; or (c) financial assets at fair value through profit or loss. [Refer: Derivative financial assets; Financial assets at fair value through profit or loss; Held-to-maturity investments]

+ References

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- Definition

The amount of investments in associates. [Refer: Associates [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2017-01-01
-Paragraph 10
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- Definition

The amount of non-current derivative financial assets. [Refer: Derivative financial assets]

+ References

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- Definition

The amount of non-current financial assets available-for-sale. [Refer: Financial assets available-for-sale; Non-current financial assets]

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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The amount of financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets]

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- Definition

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

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- Definition

The amount of current debt investments in pension assets for which the corresponding liability is included in employee-related obligations.

+ References

No definition available.

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- Definition

The amount of current equity investments in pension assets for which the corresponding liability is included in employee-related obligations.

+ References

No definition available.

+ Details

Name:	sap_CurrentEquityInvestments
Namespace Prefix:	sap_
Data Type:	xbrli:monetaryItemType
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- Definition

The amount of current investments in associates.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The current amount of loans other financial receivables, including but not limited to debt investment and equity investments.

+ References

No definition available.

+ Details

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- Definition

The amount of loans other financial receivables, including but not limited to debt investment and equity investments.

+ References

No definition available.

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- Definition

The amount of non-current equity investments in pension assets for which the corresponding liability is included in employee-related obligations.

+ References

No definition available.

+ Details

Name:	sap_NonCurrentEquityInvestments
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The amount of non-current investments in associates.

+ References

No definition available.

+ Details

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- Definition

The amount of non-current debt investments in pension assets for The amount of non-current debt investments in pension assets for which the corresponding liability is included in employee-related obligations.

+ References

No definition available.

+ Details

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- Definition

The amount of non-current loans other financial receivables, including but not limited to debt investment and equity investments.

+ References

No definition available.

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