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Capital Management and Solvency - Summary of Equity Compares to Solvency II Own Funds (Detail) - EUR (€) € in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Jan. 01, 2018 | [1] | Dec. 31, 2017 | [1] | Dec. 31, 2016
Disclosure of capital management and solvency [line items] |  |  |  |  |  |  |
Shareholders' Equity |  | € 21,850 | € 19,200 | [1] | € 20,266 |  |
Group Equity |  | 24,441 | 22,542 | [2] | € 24,079 | € 24,079 | € 24,341
DNB Bank ASA [member] |  |  |  |  |  |  |
Disclosure of capital management and solvency [line items] |  |  |  |  |  |  |
Shareholders' Equity |  | 21,850 | 19,200 |  |  |  |
IFRS adjustments for Other Equity instruments and non controlling interests |  | 2,591 | 3,342 |  |  |  |
Group Equity |  | 24,441 | 22,542 |  |  |  |
Solvency II revaluations & reclassifications |  | (7,607) | (6,593) |  |  |  |
Transferability restrictions | [3] | (1,973) | (1,884) |  |  |  |
Excess of Assets over Liabilities |  | 14,861 | 14,065 |  |  |  |
Availability adjustments |  | 4,446 | 4,326 |  |  |  |
Fungibility adjustments | [4] | (838) | (789) |  |  |  |
Available own funds |  | € 18,470 | € 17,602 |  |  |  |
[1] | Amounts have been restated to reflect voluntary changes in accounting policies related to liability adequacy testing that was adopted by Aegon effective January 1, 2019. Refer to note 2.1.2 Voluntary changes in accounting policies for details about this change.
[2] | See note 2.1.1 for details about the impact of adopting IFRS 16 on Leases and note 2.1.2 for details about the impact of voluntary change in accounting policy on Liability Adequacy Testing
[3] | This includes the transferability restriction related to the RBC CAL conversion methodology.
[4] | Amongst others, this contains the exclusion of Aegon Bank.

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