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FINANCIAL RISK MANAGEMENT, Exposure to Interest Rate Risk (Details) - Interest Rate Risk [Member] - PEN (S/)
S/ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Total Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure S/ 228,741,747 S/ 220,601,600
Cash and Cash Collateral, Reverse Repurchase Agreements and Securities Borrowing [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 41,087,688 39,147,296
Investments [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 43,024,002 48,706,271
Loans, Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 139,120,104 127,761,125
Financial Assets Designated at Fair Value through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 974,664 823,270
Premiums and Other Policies Receivable [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 921,103 937,223
Accounts Receivable from Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 1,198,379 919,419
Other Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 2,415,807 2,306,996
Total Liabilities and Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 241,391,382 234,514,969
Deposits and Obligations [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 150,340,862 142,365,502
Payables from Repurchase Agreements and Securities Lending [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 29,226,812 33,901,874
Accounts Payable to Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 463,825 338,446
Technical Reserves for Claims and Insurance Premiums [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 12,534,511 11,675,076
Financial Liabilities at Fair Value Through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 325,571 561,602
Bonds and Notes Issued [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 17,078,829 16,319,407
Other Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 4,383,533 3,907,415
Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 27,037,439 25,445,647
Derivative Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 84,967 (21,621)
Derivative Financial Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 1,575,059 2,753,434
Derivative Financial Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 1,490,092 2,775,055
Marginal Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure (12,564,668) (13,934,990)
Accumulated Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
Non-interest Bearing Assets [Member] | Total Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 10,789,411 8,369,014
Non-interest Bearing Assets [Member] | Cash and Cash Collateral, Reverse Repurchase Agreements and Securities Borrowing [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 8,276,990 7,544,354
Non-interest Bearing Assets [Member] | Investments [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 378,708 502,455
Non-interest Bearing Assets [Member] | Loans, Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure (673,399) (2,698,907)
Non-interest Bearing Assets [Member] | Financial Assets Designated at Fair Value through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 974,664 823,270
Non-interest Bearing Assets [Member] | Premiums and Other Policies Receivable [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
Non-interest Bearing Assets [Member] | Accounts Receivable from Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 20,941
Non-interest Bearing Assets [Member] | Other Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 1,832,448 2,176,901
Non-interest Bearing Assets [Member] | Total Liabilities and Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 34,700,382 32,399,135
Non-interest Bearing Assets [Member] | Deposits and Obligations [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 2,727,875 2,590,832
Non-interest Bearing Assets [Member] | Payables from Repurchase Agreements and Securities Lending [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 36,449 54,771
Non-interest Bearing Assets [Member] | Accounts Payable to Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
Non-interest Bearing Assets [Member] | Technical Reserves for Claims and Insurance Premiums [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 341,294 326,449
Non-interest Bearing Assets [Member] | Financial Liabilities at Fair Value Through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 325,571 561,602
Non-interest Bearing Assets [Member] | Bonds and Notes Issued [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 68,018 172,000
Non-interest Bearing Assets [Member] | Other Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 4,163,736 3,247,834
Non-interest Bearing Assets [Member] | Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 27,037,439 25,445,647
Non-interest Bearing Assets [Member] | Derivative Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
Non-interest Bearing Assets [Member] | Derivative Financial Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
Non-interest Bearing Assets [Member] | Derivative Financial Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
Non-interest Bearing Assets [Member] | Marginal Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure (23,910,971) (24,030,121)
Non-interest Bearing Assets [Member] | Accumulated Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure (12,564,668) (13,934,990)
Up to 1 Month [Member] | Total Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 46,157,697 38,452,848
Up to 1 Month [Member] | Cash and Cash Collateral, Reverse Repurchase Agreements and Securities Borrowing [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 21,200,113 20,110,489
Up to 1 Month [Member] | Investments [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 7,712,405 4,639,795
Up to 1 Month [Member] | Loans, Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 16,062,211 12,721,639
Up to 1 Month [Member] | Financial Assets Designated at Fair Value through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
Up to 1 Month [Member] | Premiums and Other Policies Receivable [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 882,182 897,086
Up to 1 Month [Member] | Accounts Receivable from Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 1,138 726
Up to 1 Month [Member] | Other Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 299,648 83,113
Up to 1 Month [Member] | Total Liabilities and Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 41,894,072 39,875,264
Up to 1 Month [Member] | Deposits and Obligations [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 38,932,350 38,284,217
Up to 1 Month [Member] | Payables from Repurchase Agreements and Securities Lending [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 2,414,504 620,946
Up to 1 Month [Member] | Accounts Payable to Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 98,755 72,060
Up to 1 Month [Member] | Technical Reserves for Claims and Insurance Premiums [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 312,617 296,493
Up to 1 Month [Member] | Financial Liabilities at Fair Value Through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
Up to 1 Month [Member] | Bonds and Notes Issued [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 70 3
Up to 1 Month [Member] | Other Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 135,776 601,545
Up to 1 Month [Member] | Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
Up to 1 Month [Member] | Derivative Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 178,206 434,914
Up to 1 Month [Member] | Derivative Financial Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 221,370 547,271
Up to 1 Month [Member] | Derivative Financial Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 43,164 112,357
Up to 1 Month [Member] | Marginal Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 4,441,831 (987,502)
Up to 1 Month [Member] | Accumulated Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 4,441,831 (987,502)
1 to 3 Months [Member] | Total Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 21,049,153 28,296,942
1 to 3 Months [Member] | Cash and Cash Collateral, Reverse Repurchase Agreements and Securities Borrowing [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 835,072 1,607,867
1 to 3 Months [Member] | Investments [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 1,134,280 11,068,740
1 to 3 Months [Member] | Loans, Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 18,690,355 15,427,902
1 to 3 Months [Member] | Financial Assets Designated at Fair Value through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
1 to 3 Months [Member] | Premiums and Other Policies Receivable [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 24,565 25,288
1 to 3 Months [Member] | Accounts Receivable from Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 315,184 164,184
1 to 3 Months [Member] | Other Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 49,697 2,961
1 to 3 Months [Member] | Total Liabilities and Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 17,493,188 15,041,379
1 to 3 Months [Member] | Deposits and Obligations [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 13,763,617 10,646,664
1 to 3 Months [Member] | Payables from Repurchase Agreements and Securities Lending [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 2,423,081 2,900,084
1 to 3 Months [Member] | Accounts Payable to Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 286,473 209,035
1 to 3 Months [Member] | Technical Reserves for Claims and Insurance Premiums [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 873,375 810,514
1 to 3 Months [Member] | Financial Liabilities at Fair Value Through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
1 to 3 Months [Member] | Bonds and Notes Issued [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 122,746 425,231
1 to 3 Months [Member] | Other Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 23,896 49,851
1 to 3 Months [Member] | Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
1 to 3 Months [Member] | Derivative Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 477,781 289,715
1 to 3 Months [Member] | Derivative Financial Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 700,009 1,307,322
1 to 3 Months [Member] | Derivative Financial Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 222,228 1,017,607
1 to 3 Months [Member] | Marginal Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 4,033,746 13,545,278
1 to 3 Months [Member] | Accumulated Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 8,475,577 12,557,776
3 to 12 Months [Member] | Total Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 45,808,610 37,314,791
3 to 12 Months [Member] | Cash and Cash Collateral, Reverse Repurchase Agreements and Securities Borrowing [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 2,164,640 2,052,436
3 to 12 Months [Member] | Investments [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 3,825,114 2,777,817
3 to 12 Months [Member] | Loans, Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 38,761,519 31,709,621
3 to 12 Months [Member] | Financial Assets Designated at Fair Value through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
3 to 12 Months [Member] | Premiums and Other Policies Receivable [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 9,162 9,472
3 to 12 Months [Member] | Accounts Receivable from Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 876,680 730,963
3 to 12 Months [Member] | Other Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 171,495 34,482
3 to 12 Months [Member] | Total Liabilities and Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 33,330,937 29,320,253
3 to 12 Months [Member] | Deposits and Obligations [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 21,336,061 18,968,119
3 to 12 Months [Member] | Payables from Repurchase Agreements and Securities Lending [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 9,915,571 7,709,973
3 to 12 Months [Member] | Accounts Payable to Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 55,296 40,349
3 to 12 Months [Member] | Technical Reserves for Claims and Insurance Premiums [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 1,468,165 1,355,486
3 to 12 Months [Member] | Financial Liabilities at Fair Value Through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
3 to 12 Months [Member] | Bonds and Notes Issued [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 553,109 1,238,141
3 to 12 Months [Member] | Other Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 2,735 8,185
3 to 12 Months [Member] | Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
3 to 12 Months [Member] | Derivative Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure (55,896) 197,267
3 to 12 Months [Member] | Derivative Financial Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 167,250 557,277
3 to 12 Months [Member] | Derivative Financial Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 223,146 360,010
3 to 12 Months [Member] | Marginal Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 12,421,777 8,191,805
3 to 12 Months [Member] | Accumulated Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 20,897,354 20,749,581
1 to 5 Years [Member] | Total Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 68,412,301 70,730,867
1 to 5 Years [Member] | Cash and Cash Collateral, Reverse Repurchase Agreements and Securities Borrowing [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 8,430,195 7,682,481
1 to 5 Years [Member] | Investments [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 11,313,394 8,783,106
1 to 5 Years [Member] | Loans, Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 48,659,533 54,248,434
1 to 5 Years [Member] | Financial Assets Designated at Fair Value through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
1 to 5 Years [Member] | Premiums and Other Policies Receivable [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 5,194 5,377
1 to 5 Years [Member] | Accounts Receivable from Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 3,985 1,930
1 to 5 Years [Member] | Other Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 0 9,539
1 to 5 Years [Member] | Total Liabilities and Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 96,348,514 98,872,821
1 to 5 Years [Member] | Deposits and Obligations [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 65,231,646 62,281,065
1 to 5 Years [Member] | Payables from Repurchase Agreements and Securities Lending [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 11,713,052 19,573,712
1 to 5 Years [Member] | Accounts Payable to Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 23,301 17,002
1 to 5 Years [Member] | Technical Reserves for Claims and Insurance Premiums [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 3,387,967 3,133,235
1 to 5 Years [Member] | Financial Liabilities at Fair Value Through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
1 to 5 Years [Member] | Bonds and Notes Issued [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 15,935,158 13,867,807
1 to 5 Years [Member] | Other Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 57,390 0
1 to 5 Years [Member] | Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
1 to 5 Years [Member] | Derivative Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure (515,124) (704,917)
1 to 5 Years [Member] | Derivative Financial Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 486,430 341,564
1 to 5 Years [Member] | Derivative Financial Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 1,001,554 1,046,481
1 to 5 Years [Member] | Marginal Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure (28,451,337) (28,846,871)
1 to 5 Years [Member] | Accumulated Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure (7,553,983) (8,097,290)
More than 5 Years [Member] | Total Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 36,524,575 37,437,138
More than 5 Years [Member] | Cash and Cash Collateral, Reverse Repurchase Agreements and Securities Borrowing [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 180,678 149,669
More than 5 Years [Member] | Investments [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 18,660,101 20,934,358
More than 5 Years [Member] | Loans, Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 17,619,885 16,352,436
More than 5 Years [Member] | Financial Assets Designated at Fair Value through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
More than 5 Years [Member] | Premiums and Other Policies Receivable [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
More than 5 Years [Member] | Accounts Receivable from Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 1,392 675
More than 5 Years [Member] | Other Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 62,519 0
More than 5 Years [Member] | Total Liabilities and Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 17,624,289 19,006,117
More than 5 Years [Member] | Deposits and Obligations [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 8,349,313 9,594,605
More than 5 Years [Member] | Payables from Repurchase Agreements and Securities Lending [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 2,724,155 3,042,388
More than 5 Years [Member] | Accounts Payable to Reinsurers and Coinsurers [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
More than 5 Years [Member] | Technical Reserves for Claims and Insurance Premiums [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 6,151,093 5,752,899
More than 5 Years [Member] | Financial Liabilities at Fair Value Through Profit or Loss [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
More than 5 Years [Member] | Bonds and Notes Issued [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 399,728 616,225
More than 5 Years [Member] | Other Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure [1] 0 0
More than 5 Years [Member] | Equity [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
More than 5 Years [Member] | Derivative Net [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 (238,600)
More than 5 Years [Member] | Derivative Financial Assets [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 0
More than 5 Years [Member] | Derivative Financial Liabilities [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 0 238,600
More than 5 Years [Member] | Marginal Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure 18,900,286 18,192,421
More than 5 Years [Member] | Accumulated Gap [Member]    
Interest Rate Risk Analysis of Repricing Gap [Abstract]    
Credit exposure S/ 11,346,303 S/ 10,095,131
[1] Other assets and other liabilities only include financial accounts.