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Changes in accounting policies - Leases Reconciliation (Details) - EUR (€) € in Millions | Dec. 31, 2019 | Dec. 31, 2018
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Initially applied IFRSs |  |
Future minimum lease payments under non-cancellable operating leases at December 31, 2018 |  | € 4,000
Lease liability | € 5,648 |
Increase (decrease) due to application of IFRS 16 |  |
Initially applied IFRSs |  |
- Recognition of the shares of leases related to followers |  | 2,000
- Effect of discounting |  | (1,500)
- Extension options |  | 1,200
- Other changes |  | 100
Lease liability |  | 5,800
After initial application |  |
Initially applied IFRSs |  |
Lease liability |  | € 5,811

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- Definition The Future minimum lease payments under non-cancellable operating leases + References No definition available. + Details
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- 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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- 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 + Details
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