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Significant accounting policies - Detail Of Lease Commitments Reconciliation With Lease Liabilities (Detail) - EUR (€) € in Millions	Dec. 31, 2019	Jan. 01, 2019
Disclosure of changes in accounting estimates [abstract]
Operating lease commitments at December 31, 2018 as per the consolidated annual financial statements		€ 386
Discounted using the incremental borrowing rate at January 1, 2019		302
Short term leases		(7)
Extenstion and termination options reasonably certain to be exercised		(4)
Exclusion of non-lease components		(6)
Lease liabilities recognized at January 1, 2019	€ 311	€ 285

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- Definition

Extension And Termination Options.

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No definition available.

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- Definition

Non lease components.

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No definition available.

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- Definition

Disclosure detail of lease commitments reconciliation with lease liabilities.

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No definition available.

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- Definition

Operating lease undiscounted excess amount.

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No definition available.

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No definition available.

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- Definition

The amount of the lease commitments for short-term leases accounted for applying paragraph 6 of IFRS 16. Short-term lease is a lease that, at the commencement date, has a lease term of 12 months or less. A lease that contains a purchase option is not a short-term lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard
-URIDate 2019-03-27

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- Definition

The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
-Paragraph 47
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2019-03-27

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