Employee Benefits Expense and Number of Employees - Allocation of Share-Based Payment Expense (Details) - EUR (€) € in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allocation of Share-Based Payment Expense
Cost of cloud and software	€ 115	€ 89	€ 74
Cost of services	158	101	113
Research and development	269	190	166
Sales and marketing	442	292	260
General and administration	135	113	111
Share-based payments	1,120	785	724
Thereof cash-settled share-based payments	963	678	637
Thereof equity-settled share-based payments	€ 157	€ 107	€ 87

The amount of expense arising from cash-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions in which goods or services received did not qualify for recognition as assets]

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The amount of expense arising from equity-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions in which goods or services received did not qualify for recognition as assets]

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The amount of expense arising from share-based payment transactions in which the goods or services received did not qualify for recognition as assets and presented in the income statement under functional area of of cloud and software.

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