Note 26 - Retained earnings, revaluation reserves and other reserves - Retained earnings, revaluation reserves and other reserves. Breakdown by concepts (Details) - EUR (€)	Jun. 30, 2020	Dec. 31, 2019
Retained earnings, revaluation reserves and other reserves.
Accumulated Profit Reserves	€ 30,589,000,000	€ 29,388,000,000
Other Reserves Voluntary	(160,000,000)	(119,000,000)
Total Retained Earnings Revaluation Reserves And Other Reserves	€ 30,429,000,000	€ 29,268,000,000

The total amount of reserves held by the parent company and held by the associated entities under the consolidation scope and that are recognized by the Group.

No definition available.

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