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v3.20.1

Insurance Contracts and Private Pension - Summary of Main Insurance lines (Detail) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Group accident insurance [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 35.10% | 34.30% | 38.00%
Loss ratio | 6.80% | 9.40% | 7.80%
Individual accident [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 18.80% | 14.10% | 12.50%
Loss ratio | 24.10% | 20.80% | 23.50%
Commercial Multiple Peril [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 21.20% | 21.10% | 21.20%
Loss ratio | 29.80% | 29.30% | 36.40%
Domestic Credit Insurance [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 0.60% | 0.70% | 0.90%
Loss ratio | 56.80% | 134.50% | 139.60%
Critical Or Terminal Diseases [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 27.00% | 16.10% | 10.70%
Loss ratio | 24.40% | 17.50% | 21.10%
Extended Guarantee [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 61.80% | 62.00% | 62.10%
Loss ratio | 5.50% | 13.90% | 16.00%
Credit Life [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 23.70% | 20.40% | 18.70%
Loss ratio | 18.00% | 18.30% | 16.90%
Random Events [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 23.50% | 20.30% | 16.30%
Loss ratio | 26.30% | 17.10% | 18.40%
Multiple Peril [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 46.40% | 48.10% | 57.80%
Loss ratio | 60.20% | 53.30% | 27.20%
Mortagage Insurance in market policies Credit Life [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 20.00% | 20.40% | 20.70%
Loss ratio | 17.30% | 15.30% | 13.00%
Group life [Member] |  |  |
Disclosure of Types of Insurance Contracts [Line Items] |  |  |
Sales ratio | 23.20% | 15.10% | 8.30%
Loss ratio | 34.40% | 33.20% | 24.20%

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- Details
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- Details
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- Details
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