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Loans to Customers at Amortized Cost (Tables)

12 Months Ended

Dec. 31, 2020

Loans to Customers at Amortized Cost (Tables) [Line Items]

Schedule of change in gross carrying amount and ECL allowances

		Changes as of December 31, 2019
		Stage 1																Stage 2																Stage 3
		Individual								Group								Individual								Group								Individual								Group								POCI								Total
		Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL
		MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$
Commercial loans
Balance as of January 1, 2019			9,426,420				24,880				3,049,264				21,594				2,134,848				32,343				460,251				21,167				120,564				32,694				246,436				95,887				615				299				15,438,398				228,864
Net change on Balance *			861,027				(14,709	)			452,929				3,915				(231,267	)			(3,240	)			57,965				5,054				(9,953	)			7,859				(13,173	)			36,913				1,027				(13	)			1,118,555				35,779
Transfer to Stage 1			873,349				9,699				1,005,072				49,310				(873,232	)			(9,606	)			(1,002,422	)			(48,694	)			(117	)			(93	)			(2,650	)			(616	)			—				—				—				—
Transfer to Stage 2			(1,120,580	)			(4,449	)			(1,118,008	)			(19,312	)			1,130,960				7,184				1,168,875				28,065				(10,380	)			(2,734	)			(50,867	)			(8,754	)			—				—				—				—
Transfer to Stage 3			(2,593	)			(99	)			(13,769	)			(1,050	)			(65,157	)			(10,055	)			(121,315	)			(12,628	)			67,750				10,153				135,084				13,679				—				—				—				—
Impact on year-end ECL of exposures transferred between stages during the year**			—				(7,346	)			—				(36,508	)			—				7,092				—				39,878				—				9,378				—				16,666				—				—				—				29,160
Changes to models and assumptions			—				944				—				(82	)			—				18,860				—				(861	)			—				—				—				(470	)			—				(5	)			—				18,386
Amounts written off			—				—				(55	)			(55	)			(65	)			(65	)			(371	)			(371	)			(8,587	)			(8,587	)			(46,614	)			(46,614	)			(6	)			(6	)			(55,698	)			(55,698	)
Foreign exchange adjustments			(156,824	)			25				(5,939	)			(69	)			(36,606	)			(107	)			(1,152	)			(83	)			(6,305	)			(1,374	)			(217	)			(82	)			—				—				(207,043	)			(1,690	)
Subtotal Commercial loans			9,880,799				8,945				3,369,494				17,743				2,059,481				42,406				561,831				31,527				152,972				47,296				267,999				106,609				1,636				275				16,294,212				254,801
Mortgage loans
Balance as of January 1, 2019			—				—				6,893,619				724				—				—				993,085				16,895				—				—				165,369				16,711				—				—				8,052,073				34,330
Net change on Balance *			—				—				1,312,226				739				—				—				(117,481	)			6,768				—				—				(32,301	)			552				—				—				1,162,444				8,059
Transfer to Stage 1			—				—				1,516,595				16,318				—				—				(1,516,155	)			(16,281	)			—				—				(440	)			(37	)			—				—				—				—
Transfer to Stage 2			—				—				(1,513,235	)			(742	)			—				—				1,532,523				2,239				—				—				(19,288	)			(1,497	)			—				—				—				—
Transfer to Stage 3			—				—				(105	)			—				—				—				(69,448	)			(2,770	)			—				—				69,553				2,770				—				—				—				—
Impact on year-end ECL of exposures transferred between stages during the year**			—				—				—				(15,913	)			—				—				—				19,262				—				—				—				2,225				—				—				—				5,574
Changes to models and assumptions			—				—				—				285				—				—				—				3,250				—				—				—				—				—				—				—				3,535
Amounts written off			—				—				—				—				—				—				—				—				—				—				(7,790	)			(7,790	)			—				—				(7,790	)			(7,790	)
Foreign exchange adjustments			—				—				—				—				—				—				—				—				—				—				—				—				—				—				—				—
Subtotal Mortgage loans			—				—				8,209,100				1,411				—				—				822,524				29,363				—				—				175,103				12,934				—				—				9,206,727				43,708
Consumer loans
Balance as of January 1, 2019			—				—				3,166,290				49,273				—				—				975,898				110,292				—				—				293,973				162,619				—				—				4,436,161				322,184
Net change on Balance *			—				—				493,973				60,685				—				—				(212,059	)			(48,295	)			—				—				67,033				139,704				88				44				349,035				152,138
Transfer to Stage 1			—				—				1,688,787				243,865				—				—				(1,679,389	)			(240,444	)			—				—				(9,398	)			(3,421	)			—				—				—				—
Transfer to Stage 2			—				—				(1,472,886	)			(90,968	)			—				—				1,588,909				129,954				—				—				(116,023	)			(38,986	)			—				—				—				—
Transfer to Stage 3			—				—				(12,204	)			(2,646	)			—				—				(299,286	)			(78,223	)			—				—				311,490				80,869				—				—				—				—
Impact on year-end ECL of exposures transferred between stages during the year**			—				—				—				(161,427	)			—				—				—				203,042				—				—				—				84,786				—				—				—				126,401
Changes to models and assumptions			—				—				—				—				—				—				—				—				—				—				—				—				—				—				—				—
Amounts written off			—				—				(120	)			(120	)			—				—				(978	)			(978	)			—				—				(248,614	)			(248,614	)			—				—				(249,712	)			(249,712	)
Foreign exchange adjustments			—				—				(2,867	)			(126	)			—				—				(281	)			(113	)			—				—				(3	)			(48	)			—				—				(3,151	)			(287	)
Subtotal Consumer loans			—				—				3,860,973				98,536				—				—				372,814				75,235				—				—				298,458				176,909				88				44				4,532,333				350,724
Total			9,880,799				8,945				15,439,567				117,690				2,059,481				42,406				1,757,169				136,125				152,972				47,296				741,560				296,452				1,724				319				30,033,272				649,233

		Changes as of December 31, 2020
		Stage 1																Stage 2																Stage 3
		Individual								Group								Individual								Group								Individual								Group								POCI								Total
		Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL				Gross carrying amount				ECL
		MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$
Commercial loans
Balance as of January 1, 2020			9,880,799				8,945				3,369,494				17,743				2,059,481				42,406				561,831				31,527				152,972				47,296				267,999				106,609				1,636				275				16,294,212				254,801
Net change on Balance *			786,574				26,720				551,556				26,706				17,987				110,560				114,618				12,959				(26,075	)			7,313				13,863				41,847				2,527				1,328				1,461,050				227,433
Transfer to Stage 1			501,608				3,278				1,640,602				76,242				(501,608	)			(3,278	)			(1,636,469	)			(75,140	)			—				—				(4,133	)			(1,102	)			—				—				—				—
Transfer to Stage 2			(2,224,652	)			(6,538	)			(1,236,055	)			(16,158	)			2,232,210				7,431				1,308,926				32,656				(7,558	)			(893	)			(72,871	)			(16,498	)			—				—				—				—
Transfer to Stage 3			(5,865	)			(17	)			(32,996	)			(1,000	)			(84,410	)			(15,037	)			(146,784	)			(14,807	)			90,275				15,054				179,780				15,807				—				—				—				—
Impact on year-end ECL of exposures transferred between stages during the year**			—				(2,031	)			—				(55,735	)			—				35,905				—				31,119				—				12,246				—				21,137				—				—				—				42,641
Changes to models and assumptions			—				15,097				—				36,476				—				(8,106	)			—				(2,555	)			—				11,812				—				(22,816	)			—				(27	)			—				29,881
Amounts written off			—				—				(77	)			(77	)			(1,561	)			(1,561	)			(3,710	)			(3,710	)			(1,446	)			(1,446	)			(62,107	)			(62,107	)			(292	)			(292	)			(69,193	)			(69,193	)
Foreign exchange adjustments			(20,130	)			(82	)			(1,326	)			(42	)			(60,288	)			(2,131	)			1,398				54				(3,719	)			(1,671	)			(407	)			(301	)			—				—				(84,472	)			(4,173	)
Subtotal Commercial loans			8,918,334				45,372				4,291,198				84,155				3,661,811				166,189				199,810				12,103				204,449				89,711				322,124				82,576				3,871				1,284				17,601,597				481,390
Mortgage loans
Balance as of January 1, 2020			—				—				8,209,100				1,411				—				—				822,524				29,363				—				—				175,103				12,934				—				—				9,206,727				43,708
Net change on Balance *			—				—				302,255				(317	)			—				—				(81,433	)			(7,192	)			—				—				(26,928	)			11,593				414				37				194,308				4,121
Transfer to Stage 1			—				—				1,456,154				29,878				—				—				(1,455,965	)			(29,859	)			—				—				(189	)			(19	)			—				—				—				—
Transfer to Stage 2			—				—				(1,231,376	)			(1,244	)			—				—				1,274,646				4,951				—				—				(43,270	)			(3,707	)			—				—				—				—
Transfer to Stage 3			—				—				(71,361	)			(243	)			—				—				(153,543	)			(7,104	)			—				—				224,904				7,347				—				—				—				—
Impact on year-end ECL of exposures transferred between stages during the year**			—				—				—				(28,455	)			—				—				—				20,805				—				—				—				9,804				—				—				—				2,154
Changes to models and assumptions			—				—				—				6,638				—				—				—				(511	)			—				—				—				(7,788	)			—				(7	)			—				(1,668	)
Amounts written off			—				—				(11	)			(11	)			—				—				(4,232	)			(4,232	)			—				—				(9,420	)			(9,420	)			—				—				(13,663	)			(13,663	)
Foreign exchange adjustments			—				—				—				—				—				—				—				—				—				—				—				—				—				—				—				—
Subtotal Mortgage loans			—				—				8,664,761				7,657				—				—				401,997				6,221				—				—				320,200				20,744				414				30				9,387,372				34,652
Consumer loans
Balance as of January 1, 2020			—				—				3,860,973				98,536				—				—				372,814				75,235				—				—				298,458				176,909				88				44				4,532,333				350,724
Net change on Balance *			—				—				(243,577	)			(15,947	)			—				—				(126,358	)			(34,347	)			—				—				34,201				113,480				1,614				650				(334,120	)			63,836
Transfer to Stage 1			—				—				963,136				189,887				—				—				(957,243	)			(187,255	)			—				—				(5,893	)			(2,632	)			—				—				—				—
Transfer to Stage 2			—				—				(1,216,941	)			(78,494	)			—				—				1,302,454				117,252				—				—				(85,513	)			(38,758	)			—				—				—				—
Transfer to Stage 3			—				—				(68,493	)			(6,780	)			—				—				(264,083	)			(68,958	)			—				—				332,576				75,738				—				—				—				—
Impact on year-end ECL of exposures transferred between stages during the year**			—				—				—				(134,853	)			—				—				—				141,034				—				—				—				83,947				—				—				—				90,128
Changes to models and assumptions			—				—				—				93,176				—				—				—				10,048				—				—				—				(37,619	)			—				(149	)			—				65,456
Amounts written off			—				—				(122	)			(122	)			—				—				(3,272	)			(3,272	)			—				—				(246,703	)			(246,703	)			(25	)			(25	)			(250,122	)			(250,122	)
Foreign exchange adjustments			—				—				526				(4	)			—				—				128				52				—				—				(24	)			(5	)			—				—				630				43
Subtotal Consumer loans			—				—				3,295,502				145,399				—				—				324,440				49,789				—				—				327,102				124,357				1,677				520				3,948,721				320,065
Total			8,918,334				45,372				16,251,461				237,211				3,661,811				166,189				926,247				68,113				204,449				89,711				969,426				227,677				5,962				1,834				30,937,690				836,107

Schedule of changes in allowances for loan losses

		Commercial				Mortgage				Consumer				Total
		MCh$				MCh$				MCh$				MCh$
Balance as of January 1, 2019			228,864				34,330				322,184				585,378
Charge-offs			(55,698	)			(7,790	)			(249,712	)			(313,200	)
Sales or transfers of credits			—				—				—				—
Allowances (released) established, net			81,635				17,168				278,252				377,055
Balance as of December 31, 2019			254,801				43,708				350,724				649,233
Charge-offs			(69,193	)			(13,663	)			(250,122	)			(332,978	)
Sales or transfers of credits			(107	)			—				—				(107	)
Allowances (released) established, net			295,889				4,607				219,463				519,959
Balance as of December 31, 2020			481,390				34,652				320,065				836,107

Schedule of cash flows to be received from financial leasing contracts

		Total receivable								Unearned income								Net lease receivable (*)
		2019				2020				2019				2020				2019				2020
		MCh$				MCh$				MCh$				MCh$				MCh$				MCh$
Due within one year			544,067				521,445				(58,871	)			(52,438	)			485,196				469,007
Due after 1 year but within 2 years			392,832				373,304				(42,302	)			(37,958	)			350,530				335,346
Due after 2 years but within 3 years			258,331				245,667				(27,329	)			(25,084	)			231,002				220,583
Due after 3 years but within 4 years			163,847				161,492				(18,361	)			(17,433	)			145,486				144,059
Due after 4 years but within 5 years			108,192				110,743				(13,242	)			(12,841	)			94,950				97,902
Due after 5 years			335,695				350,679				(30,313	)			(28,994	)			305,382				321,685
Total			1,802,964				1,763,330				(190,418	)			(174,748	)			1,612,546				1,588,582

Schedule of loans by industry sector

		Location
		Chile								Abroad								Total
		2019				2020				2019				2020				2019				% of Loan				2020				% of Loan
		MCh$				MCh$				MCh$				MCh$				MCh$				Portfolio				MCh$				Portfolio
Agriculture, Livestock, Forestry, Agribusiness, Fishing:
Agriculture and livestock			677,421				642,941				—				—				677,421				2.26				642,941				2.08
Fruit			793,997				849,625				—				—				793,997				2.64				849,625				2.75
Forestry and wood extraction			152,050				154,661				—				—				152,050				0.51				154,661				0.50
Fishing			140,706				135,487				—				—				140,706				0.47				135,487				0.44
Mining and Petroleum:
Mining and quarries			604,660				470,607				—				—				604,660				2.01				470,607				1.52
Natural gas and crude oil extraction			—				—				—				—				—				—				—				—
Manufacturing:
Tobacco, food and beverages			571,663				539,144				—				—				571,663				1.90				539,144				1.74
Textiles, clothing and leather goods			49,062				40,344				—				—				49,062				0.16				40,344				0.13
Wood and wood products			54,052				68,892				—				—				54,052				0.18				68,892				0.22
Paper, printing and publishing			36,958				42,988				—				—				36,958				0.12				42,988				0.14
Oil refining, carbon and rubber			304,619				86,358				—				—				304,619				1.01				86,358				0.28
Production of basic metal, non-mineral, machine and equipment			416,361				403,924				—				—				416,361				1.39				403,924				1.31
Other manufacturing industries			192,257				166,118				—				—				192,257				0.64				166,118				0.54
Electricity, Gas and Water:
Electricity, gas and water			325,143				395,598				—				—				325,143				1.08				395,598				1.28
Construction:
Residential buildings			2,041,437				2,328,498				—				—				2,041,437				6.80				2,328,498				7.53
Other constructions			101,262				125,081				—				—				101,262				0.34				125,081				0.40
Commerce:
Wholesale			1,108,578				1,137,766				2,355				—				1,110,933				3.70				1,137,766				3.68
Retail, restaurants and hotels			946,605				1,399,039				8,834				7,341				955,439				3.18				1,406,380				4.55
Transport, Storage and Communications:
Transport and storage			1,193,450				1,239,443				—				—				1,193,450				3.97				1,239,443				4.01
Communications			40,637				214,961				—				—				40,637				0.14				214,961				0.69
Financial Services:
Financial and insurance companies			2,268,538				2,019,017				3,060				—				2,271,598				7.56				2,019,017				6.53
Real estate and other financial services			315,961				330,868				—				1,448				315,961				1.05				332,316				1.07
Community, Social and Personal Services:
Community, social and personal services			2,267,433				3,052,513				436				1,681				2,267,869				7.55				3,054,194				9.87
Others			1,676,677				1,747,254				—				—				1,676,677				5.59				1,747,254				5.67
Consumer Loans			4,532,333				3,948,721				—				—				4,532,333				15.09				3,948,721				12.76
Residential Mortgage Loans			9,206,727				9,387,372				—				—				9,206,727				30.66				9,387,372				30.33
Total			30,018,587				30,927,220				14,685				10,470				30,033,272				100.00				30,937,690				100.00

Schedule of change in gross carrying amount and ECL allowances

		As of December 31, 2018
		Carrying amount				Allowances released				Sale price				Effect on income (loss) gain (*)
		MCh$				MCh$				MCh$				MCh$
Sale of outstanding loans			22,567				(958	)			21,876				267
Sale of write-off loans			—				—				—				—
Total			22,567				(958	)			21,876				267

		As of December 31, 2019
		Carrying amount				Allowances released				Sale price				Effect on income (loss) gain (*)
		MCh$				MCh$				MCh$				MCh$
Sale of outstanding loans			12,420				—				12,420				—
Sale of write-off loans			—				—				—				—
Total			12,420				—				12,420				—

		As of December 31, 2020
		Carrying amount				Allowances released				Sale price				Effect on income (loss) gain (*)
		MCh$				MCh$				MCh$				MCh$
Sale of outstanding loans			43,957				(107	)			43,889				39
Sale of write-off loans			—				—				—				—
Total			43,957				(107	)			43,889				39

Loans to customers [Member]

Loans to Customers at Amortized Cost (Tables) [Line Items]

Schedule of loans to customers, net

		As of December 31, 2019												As of December 31, 2020
		Assets before Allowances				Allowances established				Net assets				Assets before Allowances				Allowances established (3)				Net assets
		MCh$				MCh$				MCh$				MCh$				MCh$				MCh$
Commercial loans (2)
Commercial loans			12,144,720				(197,530	)			11,947,190				14,398,446				(381,243	)			14,017,203
Foreign trade loans			1,431,794				(12,306	)			1,419,488				967,646				(18,341	)			949,305
Current account debtors			265,762				(9,443	)			256,319				120,539				(6,293	)			114,246
Factoring transactions			688,198				(4,878	)			683,320				373,903				(5,673	)			368,230
Student loans			56,219				(2,442	)			53,777				57,552				(2,390	)			55,162
Commercial lease transactions (1)			1,619,772				(18,746	)			1,601,026				1,592,905				(51,175	)			1,541,730
Other loans and accounts receivable			87,747				(9,456	)			78,291				90,606				(16,275	)			74,331
Subtotal			16,294,212				(254,801	)			16,039,411				17,601,597				(481,390	)			17,120,207
Mortgage loans
Mortgage bonds			14,808				(174	)			14,634				9,363				(57	)			9,306
Transferable mortgage loans			32,386				(157	)			32,229				24,105				(76	)			24,029
Other residential real estate mortgage loans			9,148,811				(43,363	)			9,105,448				9,198,834				(33,501	)			9,165,333
Credits from ANAP			4				—				4				2				—				2
Other loans and accounts receivable			10,718				(14	)			10,704				155,068				(1,018	)			154,050
Subtotal			9,206,727				(43,708	)			9,163,019				9,387,372				(34,652	)			9,352,720
Consumer loans
Consumer loans in installments			3,039,560				(281,437	)			2,758,123				2,711,541				(257,574	)			2,453,967
Current account debtors			296,374				(14,450	)			281,924				158,756				(6,441	)			152,315
Credit card debtors			1,195,614				(54,304	)			1,141,310				1,077,445				(55,625	)			1,021,820
Consumer lease transactions (1)			69				—				69				302				(2	)			300
Other loans and accounts receivable			716				(533	)			183				677				(423	)			254
Subtotal			4,532,333				(350,724	)			4,181,609				3,948,721				(320,065	)			3,628,656
Total			30,033,272				(649,233	)			29,384,039				30,937,690				(836,107	)			30,101,583

Schedule of credit quality and the maximum exposure to credit risk

		2019
		Stage 1								Stage 2								Stage 3
		Individual				Group				Individual				Group				Individual				Group				POCI				Total
		MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$
Commercial loans
Normal			9,880,799				3,369,494				1,987,763				561,831				—				779				—				15,800,666
Substandard			—				—				71,718				—				—				—				—				71,718
Non-complying			—				—				—				—				152,972				267,220				1,636				421,828
Subtotal			9,880,799				3,369,494				2,059,481				561,831				152,972				267,999				1,636				16,294,212
Mortgage loans
Normal			—				8,209,100				—				822,524				—				—				—				9,031,624
Non-complying			—				—				—				—				—				175,103				—				175,103
Subtotal			—				8,209,100				—				822,524				—				175,103				—				9,206,727
Consumer loans
Normal			—				3,860,973				—				372,814				—				7,555				—				4,241,342
Non-complying			—				—				—				—				—				290,903				88				290,991
Subtotal			—				3,860,973				—				372,814				—				298,458				88				4,532,333
Total			9,880,799				15,439,567				2,059,481				1,757,169				152,972				741,560				1,724				30,033,272

		2020
		Stage 1								Stage 2								Stage 3
		Individual				Group				Individual				Group				Individual				Group				POCI				Total
		MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$				MCh$
Commercial loans
Normal			8,918,334				4,291,198				3,467,569				199,810				964				613				42				16,878,530
Substandard			—				—				194,242				—				—				—				1,627				195,869
Non-complying			—				—				—				—				203,485				321,511				2,202				527,198
Subtotal			8,918,334				4,291,198				3,661,811				199,810				204,449				322,124				3,871				17,601,597
Mortgage loans
Normal			—				8,664,761				—				401,997				—				1,078				—				9,067,836
Non-complying			—				—				—				—				—				319,122				414				319,536
Subtotal			—				8,664,761				—				401,997				—				320,200				414				9,387,372
Consumer loans
Normal			—				3,295,502				—				324,440				—				2,419				28				3,622,389
Non-complying			—				—				—				—				—				324,683				1,649				326,332
Subtotal			—				3,295,502				—				324,440				—				327,102				1,677				3,948,721
Total			8,918,334				16,251,461				3,661,811				926,247				204,449				969,426				5,962				30,937,690

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