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Note 29 - Treasury Shares Treasury Stock (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Treasury Share Reconciliation Line Items |  |  |
Balance at beginning | € 48 | € 309 |
Treasury Share Information, Number of Shares |  |  |
Balance at the end | 96 | 48 | € 309
Treasury shares [Member] |  |  |
Treasury Share Reconciliation Line Items |  |  |
Balance at beginning | 48 | 309 | 350
Changes In Treasury Shares Abstract |  |  |
Purchases | 1,674 | 2,004 | 3,273
Sales and other changes | (1,622) | (2,263) | (3,314)
Derivatives on BBVA Shares | (4) | (1) | 0
Other changes | 0 | 0 | 0
Treasury Share Information |  |  |
Held By BBVA. S.A | 0 | 22 | 19
Held by Corporacion General Financiera SA | 96 | 26 | 290
Held By Other Subsidiaries | 0 | 0 | 0
Net Gain Or Losses On Transactions ( Shareholdersfunds-Reserves) | 1 | (30) | 6
Treasury Share Information, Number of Shares |  |  |
Balance at the end | € 96 | € 48 | € 309
Number Of Treasury Shares [Member] |  |  |
Treasury Share Reconciliation Line Items |  |  |
Number of Treasury Shares at the beginnig | 7,230,787 | 38,917,665 | 41,510,698
Changes in treasury shares, Number of Shares Abstract |  |  |
Purchases, Number of Shares | 238,065,297 | 379,850,939 | 431,321,283
Sales and other changes, Number of Shares | (231,956,502) | (411,537,817) | (433,914,316)
Derivatives on BBVA Shares, Number of Shares | 0 | 0 | 0
Other changes, Number of Shares | 0 | 0 | 0
Treasury Share Information, Number of Shares |  |  |
Held By BBVA SA | 0 | 2,789,894 | 1,840,378
Held by Corporacion General Financiera SA, Number of Shares | 13,339,582 | 4,440,893 | 37,077,287
Held By Other Subsidiaries, Number of Shares | 0 | 0 | 0
Average Purchase Price In Euros, Number of Shares | 7.03 | 5.27 | 7.6
Average Selling Price In Euros, Number of Shares | 6.99 | 5.5 | 7.67
Number of Treasury Shares at the end | 13,339,582 | 7,230,787 | 38,917,665

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