The increase in intangible assets and goodwill resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Intangible assets and goodwill]

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The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]

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The increase (decrease) in intangible assets and goodwill resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Intangible assets and goodwill]

+ References

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The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill]

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Goodwill - Text details (Detail) € in Millions	12 Months Ended
Goodwill - Text details (Detail) € in Millions	Dec. 31, 2017 EUR (€)	Dec. 31, 2016 EUR (€)	Aug. 09, 2017 EUR (€)
Goodwill [Line items]
Acquisitions through business combinations, intangible assets and goodwill	€ 1,548	€ 140
Increase (decrease) through net exchange differences, intangible assets and goodwill	(836)	248
Goodwill	€ 7,731	€ 8,898
Home Monitoring [Member]
Goodwill [Line items]
Sensitivity pre-tax discount rate	90
Sensitivity compound long-term sales growth	(140)
Sensitivity terminal value	(12.00%)
Intangible assets and goodwill	€ 32
Population Health Management [Member]
Goodwill [Line items]
Sensitivity pre-tax discount rate	120
Sensitivity compound long-term sales growth	(400)
Sensitivity terminal value	(24.00%)
Intangible assets and goodwill	€ 187
Healthcare Informatics [Member]
Goodwill [Line items]
Sensitivity pre-tax discount rate	70
Sensitivity compound long-term sales growth	(150)
Sensitivity terminal value	(11.00%)
Intangible assets and goodwill	€ 174
The Spectranetics Corporation [Member]
Goodwill [Line items]
Acquisitions through business combinations, intangible assets and goodwill	1,255
Goodwill			€ 1,255
Remaining acquisitions (excluding Spectranetics) [Member]
Goodwill [Line items]
Acquisitions through business combinations, intangible assets and goodwill	€ 293