The aggregate number of shares issued by the entity.

No definition available.

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Balance Type:	na
Period Type:	instant

- Definition

The amount of aggregate share capital after the transaction.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the price per share for equity investment received for a global collaborative agreement.

+ References

No definition available.

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The increase in equity through the issue of equity instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-Paragraph 106
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-URIDate 2017-03-09

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The nominal value of capital issued.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 78
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_e&doctype=Standard
-URIDate 2017-03-09

+ Details

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

- Definition

The number of shares issued by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 106
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-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_106_d&doctype=Standard
-URIDate 2017-03-09

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from issuing shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2017-01-01
-Paragraph 17
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_17_a&doctype=Standard
-URIDate 2017-03-09

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of cost related to the issuance of shares.

+ References

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Share capital - History - Narrative (Details) € / shares in Units, $ in Millions				12 Months Ended
	Jan. 19, 2016 EUR (€) shares	Dec. 16, 2015 USD ($)	Dec. 16, 2015 € / shares	Dec. 31, 2017 EUR (€) shares	Dec. 31, 2016 EUR (€) shares	Dec. 31, 2015 EUR (€) shares	Dec. 31, 2014 EUR (€) shares
History of the share capital
Share capital				€ 233,414,000	€ 223,928,000	€ 185,399,000	€ 157,274,000
Aggregate share capital				€ 275,510,000	€ 250,187,000	€ 211,390,000	€ 163,904,000
Aggregate number of shares after transaction \| shares				50,936,778	46,256,078	39,076,342	30,299,129
Offering expenses, discount and commission				€ 15,837,000	€ 269,000	€ 19,360,000
Proceeds from issuing shares				363,924,000	392,121,000	278,702,000
Issue of new shares				€ 363,924,000	€ 326,271,000	€ 278,703,000
Gilead Sciences, Inc
History of the share capital
Number of shares issued \| shares	6,760,701
Issue of new shares	€ 392,120,658	$ 425
Price per share including issuance premium \| € / shares			€ 58.00