Allowances for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2022

Reconciliation of changes in allowance account for credit losses of financial assets [abstract]

Summary of Changes in the Allowances for Loan Losses

11.1 Changes in allowances for credit losses of loans measured at amortized cost for the years ended December 31, 2021 and 2022, are as follows:

	2021
	Retail									Corporate									Credit card
	12-month expected credit losses			Lifetime expected credit losses						12-month expected credit losses			Lifetime expected credit losses						12-month expected credit losses			Lifetime expected credit losses
				Non-impaired			Impaired						Non-impaired			Impaired						Non-impaired			Impaired
	(In millions of Korean won)
Beginning	￦	403,805		￦	240,578		￦	265,705		￦	368,782		￦	410,937		￦	892,061		￦	205,157		￦	234,219		￦	262,119
Transfer between stages:
Transfer to 12-month expected credit losses		125,634			(120,132	)		(5,502	)		133,798			(71,772	)		(62,026	)		45,938			(44,858	)		(1,080	)
Transfer to lifetime expected credit losses		(97,040	)		115,427			(18,387	)		(71,902	)		92,245			(20,343	)		(34,208	)		35,846			(1,638	)
Impairment		(6,312	)		(49,244	)		55,556			(2,942	)		(42,158	)		45,100			(2,228	)		(12,580	)		14,808
Write-offs		—			12			(411,083	)		—			(3	)		(239,815	)		—			—			(440,721	)
Sales		(1,112	)		(53	)		(3,592	)		(179	)		—			(16,257	)		—			—			—
Provision (reversal) for credit losses1,2		40,616			52,528			397,492			14,299			88,230			338,746			(39,533	)		110,022			474,041
Business combination		8,315			2,223			7,194			—			—			1,654			—			—			—
Others (exchange differences, etc.)		77			532			1,758			5,942			675			21,844			42			—			(13,202	)
Ending3	￦	473,983		￦	241,871		￦	289,141		￦	447,798		￦	478,154		￦	960,964		￦	175,168		￦	322,649		￦	294,327

	2022
	Retail									Corporate									Credit card
	12-month expected credit losses			Lifetime expected credit losses						12-month expected credit losses			Lifetime expected credit losses						12-month expected credit losses			Lifetime expected credit losses
				Non-impaired			Impaired						Non-impaired			Impaired						Non-impaired			Impaired
	(In millions of Korean won)
Beginning	￦	473,983		￦	241,871		￦	289,141		￦	447,798		￦	478,154		￦	960,964		￦	175,168		￦	322,649		￦	294,327
Transfer between stages:
Transfer to 12-month expected credit losses		129,975			(122,881	)		(7,094	)		127,679			(120,619	)		(7,060	)		57,128			(50,836	)		(6,292	)
Transfer to lifetime expected credit losses		(102,988	)		122,804			(19,816	)		(93,169	)		125,031			(31,862	)		(23,042	)		24,324			(1,282	)
Impairment		(6,042	)		(52,137	)		58,179			(13,524	)		(48,220	)		61,744			(2,129	)		(19,219	)		21,348
Write-offs		—			(1	)		(448,376	)		—			(3	)		(617,332	)		—			—			(450,389	)
Sales		(810	)		(163	)		(5,689	)		(103	)		(145	)		(70,603	)		—			—			—
Provision (reversal) for credit losses1,2		108,300			94,535			595,991			49,789			126,627			690,534			(43,497	)		77,418			480,849
Others (exchange differences, etc.)		(1,332	)		(647	)		(11,415	)		3,701			1,111			(85,097	)		(443	)		(21	)		(18,219	)
Ending3	￦	601,086			283,381			450,921			522,171			561,936			901,288			163,185			354,315			320,342

1  Provision for credit losses in the consolidated statements of comprehensive income also includes provision (reversal) for credit losses of due from financial institutions (Note 7.3), provision (reversal) for credit losses of financial investments (Note 12.5), provision (reversal) for credit losses of unused commitments, acceptances and guarantees (Note 24.2), provision (reversal) for credit losses of financial guarantee contracts (Note 24.3), and provision (reversal) for credit losses of other financial assets (Note 19.2).

2  Includes ￦ 387,860 million and ￦ 415,998 million of collections from written-off loans for the years ended December 31, 2021 and 2022, respectively.

Summary of Changes in the Book Value of Loans at Amortized Cost

11.2 Changes in gross carrying amount of loans for the years ended December 31, 2021 and 2022, are as follows:

	2021
	12-month expected credit losses			Lifetime expected credit losses
				Non-impaired			Impaired
	(In millions of Korean won)
Beginning	￦	348,518,780		￦	28,504,202		￦	3,427,365
Transfer between stages:
Transfer to 12-month expected credit losses		31,046,440			(30,615,747	)		(430,693	)
Transfer to lifetime expected credit losses (non-impaired)		(36,815,970	)		37,276,737			(460,767	)
Transfer to lifetime expected credit losses (impaired)		(668,120	)		(1,486,835	)		2,154,955
Write-offs		—			9			(1,091,619	)
Sales		(2,892,774	)		(8,541	)		(151,714	)
Business combination		116,067			3,924			12,808
Net increase (decrease) (execution, repayment, and others)		46,013,068			(895,012	)		27,765
Ending	￦	385,317,491		￦	32,778,737		￦	3,488,100

	2022
	12-month expected credit losses			Lifetime expected credit losses
				Non-impaired			Impaired
	(In millions of Korean won)
Beginning	￦	385,317,491		￦	32,778,737		￦	3,488,100
Transfer between stages:
Transfer to 12-month expected credit losses		34,445,894			(34,282,273	)		(163,621	)
Transfer to lifetime expected credit losses (non-impaired)		(38,397,090	)		38,818,713			(421,623	)
Transfer to lifetime expected credit losses (impaired)		(1,127,437	)		(1,478,968	)		2,606,405
Write-offs		—			(4	)		(1,516,097	)
Sales		(3,182,398	)		(15,961	)		(270,541	)
Net increase (decrease) (execution, repayment, and others)		25,587,528			(1,325,731	)		(171,997	)
Ending	￦	402,643,988		￦	34,494,513		￦	3,550,626