Insurance Claim Reserves (Tables)

12 Months Ended

Dec. 31, 2022

Insurance Loss Reserves [Abstract]

Claims and claim adjustment expense reserves [Table Text Block]

Claims and claim adjustment expense reserves were as follows:

(at December 31, in millions)	2022		2021
Property-casualty	$	58,643	$	56,897
Accident and health	6		10
Total	$	58,649	$	56,907

Reconciliation of beginning and ending property casualty reserve balances for claims and claim adjustment expenses [Table Text Block]

The following table presents a reconciliation of beginning and ending property casualty reserve balances for claims and claim adjustment expenses:

(at and for the year ended December 31, in millions)	2022		2021		2020
Claims and claim adjustment expense reserves at beginning of year	$	56,897	$	54,510	$	51,836
Less reinsurance recoverables on unpaid losses	8,209		8,153		8,035
Cumulative effect of adoption of updated accounting guidance for credit losses at January 1, 2020	—		—		53
Net reserves at beginning of year	48,688		46,357		43,854
Estimated claims and claim adjustment expenses for claims arising in the current year	23,308		20,698		19,285
Estimated decrease in claims and claim adjustment expenses for claims arising in prior years	(537)		(484)		(267)
Total increases	22,771		20,214		19,018
Claims and claim adjustment expense payments for claims arising in:
Current year	9,406		8,401		7,497
Prior years	10,945		9,470		9,092
Total payments	20,351		17,871		16,589
Unrealized foreign exchange loss (gain)	(255)		(12)		74
Net reserves at end of year	50,853		48,688		46,357
Plus reinsurance recoverables on unpaid losses	7,790		8,209		8,153
Claims and claim adjustment expense reserves at end of year	$	58,643	$	56,897	$	54,510

Summary of claims and claim adjustment expense reserves, including certain components, for the Company's major product lines by reporting segment [Table Text Block]

The following is a summary of claims and claim adjustment expense reserves, including certain components, for the Company’s major product lines by reporting segment at December 31, 2022.

(at December 31, 2022, in millions)	Net Undiscounted Claims and Claim Adjustment Expense Reserves		Discount (Net of Reinsurance)		Subtotal: Net Claims and Claim Adjustment Expense Reserves		Reinsurance Recoverables on Unpaid Losses (4)		Claims and Claim Adjustment Expense Reserves
Business Insurance
General liability	$	9,269	$	(135)	$	9,134	$	949	$	10,083
Commercial property	1,109		—		1,109		459		1,568
Commercial multi-peril	4,819		—		4,819		219		5,038
Commercial automobile	3,856		—		3,856		291		4,147
Workers’ compensation (1)	16,473		(934)		15,539		629		16,168
Bond & Specialty Insurance
General liability	2,388		—		2,388		204		2,592
Fidelity and surety	564		—		564		6		570
Personal Insurance
Automobile	3,654		—		3,654		390		4,044
Homeowners (excluding Other)	2,327		—		2,327		108		2,435
International - Canada	708		—		708		20		728
Subtotal — claims and allocated claim adjustment expenses for the products presented in the development tables below	45,167		(1,069)		44,098		3,275		47,373
Other insurance contracts (2)	4,187		(4)		4,183		1,786		5,969
Unallocated loss adjustment expense reserves	2,481		—		2,481		14		2,495
Structured settlements (3)	—		—		—		2,758		2,758
Other	91		—		91		(43)		48
Total property-casualty	51,926		(1,073)		50,853		7,790		58,643
Accident and health	—		—		—		6		6
Total	$	51,926	$	(1,073)	$	50,853	$	7,796	$	58,649

___________________________________________

(1)Net discount amount includes discount of $51 million on reinsurance recoverables for long-term disability and annuity claim payments.

(2)Primarily includes residual market, international (other than operations in Canada within the Personal Insurance segment) and runoff assumed reinsurance business.

(3)Includes structured settlements in cases where the Company did not receive a release from the claimant.

(4)Total reinsurance recoverables (on paid and unpaid losses) at December 31, 2022 were $8.06 billion.

Allocated claim adjustment expense, by accident year, on a historical basis for incurred and paid claims on an undiscounted, net of reinsurance basis [Table Text Block]

Business Insurance

General Liability

	(dollars in millions)
	For the Years Ended December 31,
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year																					IBNR Reserves Dec 31, 2022		Cumulative Number of Reported Claims
2013	$	965	$	975	$	958	$	940	$	927	$	933	$	975	$	975	$	963	$	963	$	67	22,807
2014			976		989		983		948		956		1,013		988		979		971		86		22,619
2015					998		956		923		967		1,057		1,087		1,072		1,082		78		21,778
2016							1,075		1,058		1,087		1,187		1,204		1,179		1,185		143		20,662
2017									1,133		1,143		1,196		1,234		1,226		1,243		171		19,450
2018											1,253		1,312		1,344		1,395		1,477		294		19,508
2019													1,447		1,486		1,498		1,567		452		18,691
2020															1,467		1,493		1,470		719		13,622
2021																	1,591		1,589		1,058		12,974
2022																			1,696		1,452		11,568
																	Total		$	13,243

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited
2013	$	35	$	175	$	363	$	498	$	639	$	745	$	816	$	836	$	853	$	868
2014			37		163		321		515		640		750		805		832		849
2015					36		137		336		558		740		828		875		927
2016							35		191		421		649		758		858		951		Liability for Claims
2017									40		180		378		552		724		914		And Allocated Claim
2018											42		202		441		709		939		Adjustment Expenses,
2019													51		233		482		816		Net of Reinsurance
2020															61		244		458
2021																	67		231		2013 -		Before
2022																			81		2022		2013
																	Total		$	7,034	$	6,209	$	3,060
																			Total net liability				$	9,269

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	3.6	%	11.8	%	17.0	%	18.2	%	13.8	%	10.9	%	6.3	%	3.2	%	1.8	%	1.6	%

Commercial Property

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claims Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year											IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2018	$	1,093	$	1,079	$	1,070	$	1,068	$	1,051	$	14	25,094
2019			1,069		1,034		1,031		1,039		3		25,427
2020					1,107		1,025		1,005		38		25,638
2021							1,236		1,190		2		25,436
2022									1,309		227		23,549
							Total		$	5,594

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
	Unaudited
											Liability for Claims
Accident Year											And Allocated Claim
2018	$	561	$	928	$	981	$	1,005	$	1,009	Adjustment Expenses,
2019			610		957		1,001		1,012		Net of Reinsurance
2020					580		857		907
2021							645		1,068		2018 -		Before
2022									624		2022		2018
							Total		$	4,620	$	974	$	135
									Total net liability				$	1,109

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	54.3	%	32.8	%	4.7	%	1.7	%	0.4	%

Commercial Multi-Peril

	(dollars in millions)
	For the Years Ended December 31,
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year																					IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2013	$	1,615	$	1,623	$	1,620	$	1,609	$	1,591	$	1,600	$	1,599	$	1,598	$	1,593	$	1,591	$	19	84,057
2014			1,663		1,627		1,625		1,617		1,626		1,627		1,627		1,622		1,619		23		78,513
2015					1,568		1,625		1,593		1,597		1,606		1,593		1,584		1,571		32		72,237
2016							1,662		1,623		1,598		1,590		1,601		1,587		1,579		42		69,487
2017									1,872		1,928		1,956		1,919		1,935		1,943		80		72,491
2018											1,976		2,114		2,092		2,112		2,121		108		76,526
2019													2,017		2,087		2,089		2,103		182		67,315
2020															2,142		2,141		2,126		424		69,470
2021																	2,164		2,097		521		55,421
2022																			2,502		1,036		42,299
																	Total		$	19,252

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited
2013	$	644	$	987	$	1,167	$	1,304	$	1,410	$	1,475	$	1,516	$	1,532	$	1,544	$	1,556
2014			628		956		1,154		1,328		1,448		1,512		1,544		1,560		1,577
2015					595		970		1,144		1,310		1,409		1,452		1,489		1,512
2016							585		950		1,133		1,278		1,373		1,437		1,477		Liability for Claims
2017									716		1,199		1,388		1,531		1,674		1,763		And Allocated Claim
2018											792		1,302		1,500		1,669		1,815		Adjustment Expenses,
2019													707		1,187		1,423		1,628		Net of Reinsurance
2020															791		1,180		1,373
2021																	744		1,206		2013 -		Before
2022																			817		2022		2013
																	Total		$	14,724	$	4,528	$	291
																			Total net liability				$	4,819

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	36.7	%	22.3	%	10.7	%	9.2	%	6.8	%	3.9	%	2.3	%	1.2	%	0.9	%	0.7	%

Commercial Automobile

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claims Adjustment
	Expenses, Net of Reinsurance
	Unaudited
Accident Year											IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2018	$	1,645	$	1,742	$	1,745	$	1,761	$	1,781	$	63	204,942
2019			1,835		1,951		1,976		1,992		149		207,185
2020					1,788		1,677		1,621		364		142,649
2021							1,741		1,757		561		147,563
2022									1,939		989		141,652
							Total		$	9,090

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
	Unaudited
											Liability for Claims
Accident Year											And Allocated Claim
2018	$	515	$	848	$	1,159	$	1,404	$	1,594	Adjustment Expenses,
2019			539		934		1,269		1,577		Net of Reinsurance
2020					437		696		958
2021							453		800		2018 -		Before
2022									540		2022		2018
							Total		$	5,469	$	3,621	$	235
									Total net liability				$	3,856

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	27.3	%	18.6	%	16.8	%	14.6	%	10.7	%

Workers’ Compensation

	(dollars in millions)
	For the Years Ended December 31,
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year																					IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2013	$	2,553	$	2,545	$	2,540	$	2,506	$	2,463	$	2,423	$	2,354	$	2,321	$	2,304	$	2,273	$	309	135,317
2014			2,554		2,553		2,547		2,476		2,430		2,393		2,352		2,336		2,277		352		131,630
2015					2,644		2,585		2,505		2,441		2,372		2,279		2,220		2,155		398		131,175
2016							2,768		2,690		2,569		2,473		2,372		2,300		2,235		379		131,848
2017									2,779		2,681		2,584		2,483		2,439		2,342		501		125,747
2018											2,744		2,687		2,599		2,503		2,416		625		123,572
2019													2,680		2,714		2,699		2,632		724		120,190
2020															2,559		2,530		2,433		908		96,477
2021																	2,356		2,349		1,006		94,430
2022																			2,293		1,415		92,937
																	Total		$	23,405

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited
2013	$	458	$	954	$	1,237	$	1,413	$	1,525	$	1,604	$	1,659	$	1,700	$	1,729	$	1,756
2014			455		944		1,224		1,399		1,505		1,581		1,634		1,672		1,703
2015					430		893		1,154		1,310		1,411		1,470		1,520		1,547
2016							421		873		1,118		1,272		1,367		1,433		1,486		Liability for Claims
2017									433		890		1,154		1,314		1,418		1,490		And Allocated Claim
2018											440		919		1,169		1,330		1,440		Adjustment Expenses,
2019													466		951		1,229		1,402		Net of Reinsurance
2020															389		794		1,017
2021																	427		848		2013 -		Before
2022																			388		2022		2013
																	Total		$	13,077	$	10,328	$	6,145
																			Total net liability				$	16,473

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	18.4	%	19.7	%	11.1	%	7.1	%	4.6	%	3.1	%	2.4	%	1.6	%	1.3	%	1.2	%

Bond & Specialty Insurance

General Liability

	(dollars in millions)
	For the Years Ended December 31,
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year																					IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2013	$	510	$	565	$	606	$	630	$	654	$	607	$	586	$	575	$	564	$	561	$	(8)	4,471
2014			549		571		563		518		473		452		450		449		451		14		4,379
2015					528		524		486		437		395		414		413		414		23		4,229
2016							512		511		504		520		514		510		511		19		4,407
2017									534		517		526		493		524		554		49		4,606
2018											530		548		585		595		605		49		4,850
2019													588		653		665		670		146		5,408
2020															772		753		741		265		5,329
2021																	812		756		404		5,272
2022																			803		616		3,462
																	Total		$	6,066

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited
2013	$	34	$	154	$	252	$	352	$	400	$	434	$	451	$	462	$	482	$	551
2014			38		150		239		312		367		407		418		426		431
2015					38		141		234		310		338		348		381		383
2016							30		141		233		313		378		446		463		Liability for Claims
2017									38		155		262		340		404		450		And Allocated Claim
2018											49		182		290		383		458		Adjustment Expenses,
2019													51		189		323		410		Net of Reinsurance
2020															52		210		333
2021																	78		210		2013 -		Before
2022																			69		2022		2013
																	Total		$	3,758	$	2,308	$	80
																			Total net liability				$	2,388

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	7.8	%	21.7	%	19.0	%	15.8	%	10.8	%	7.7	%	4.2	%	1.5	%	2.3	%	12.3	%

Fidelity and Surety

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022		IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
	Incurred Claims and Allocated Claims Adjustment
	Expenses, Net of Reinsurance
Accident Year	Unaudited
2018	$	220	$	235	$	220	$	220	$	216	$	(7)	914
2019			203		193		200		185		18		888
2020					274		203		219		95		787
2021							284		172		117		576
2022									310		244		526
							Total		$	1,102

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited										Liability for Claims
											And Allocated Claim
2018	$	64	$	171	$	202	$	206	$	214	Adjustment Expenses,
2019			49		121		147		154		Net of Reinsurance
2020					50		79		110
2021							25		50		2018 -		Before
2022									36		2022		2018
							Total		$	564	$	538	$	26
									Total net liability				$	564

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	21.0	%	29.1	%	14.1	%	2.9	%	3.7	%

Personal Insurance

Automobile

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022		IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
	Incurred Claims and Allocated Claims Adjustment
	Expenses, Net of Reinsurance
Accident Year	Unaudited
2018	$	3,281	$	3,269	$	3,233	$	3,220	$	3,223	$	22	1,051,593
2019			3,362		3,361		3,333		3,339		64		1,033,458
2020					2,829		2,764		2,729		150		810,317
2021							3,716		3,770		426		997,397
2022									4,755		1,334		1,015,497
							Total		$	17,816

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited										Liability for Claims
											And Allocated Claim
2018	$	1,889	$	2,582	$	2,880	$	3,040	$	3,144	Adjustment Expenses,
2019			1,933		2,650		2,958		3,159		Net of Reinsurance
2020					1,571		2,126		2,411
2021							2,062		2,981		2018 -		Before
2022									2,683		2022		2018
							Total		$	14,378	$	3,438	$	216
									Total net liability				$	3,654

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	57.0	%	21.9	%	9.6	%	5.5	%	3.2	%

Homeowners (excluding Other)

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022		IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
	Incurred Claims and Allocated Claims Adjustment
	Expenses, Net of Reinsurance
Accident Year	Unaudited
2018	$	2,610	$	2,574	$	2,381	$	2,325	$	2,321	$	24	187,375
2019			2,297		2,344		2,343		2,341		12		181,434
2020					3,019		2,967		2,909		68		220,946
2021							3,463		3,486		148		231,949
2022									4,277		1,339		191,981
							Total		$	15,334

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited										Liability for Claims
											And Allocated Claim
2018	$	1,657	$	2,298	$	2,255	$	2,239	$	2,253	Adjustment Expenses,
2019			1,613		2,179		2,269		2,300		Net of Reinsurance
2020					2,019		2,673		2,755
2021							2,334		3,235		2018 -		Before
2022									2,537		2022		2018
							Total		$	13,080	$	2,254	$	73
									Total net liability				$	2,327

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	67.2	%	25.0	%	1.6	%	0.3	%	0.6	%

International - Canada

	(dollars in millions)
	For the Years Ended December 31,																				IBNR Reserves December 31, 2022		Cumulative
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022				Number of
Accident	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance																						Reported
Year	Unaudited																						Claims
2013	$	464	$	458	$	449	$	438	$	425	$	424	$	414	$	410	$	407	$	410	$	(4)	54,237
2014			410		425		426		415		408		405		405		402		410		(3)		52,294
2015					345		345		345		341		343		342		337		337		(4)		45,217
2016							346		392		392		401		401		400		401		(3)		45,765
2017									331		365		386		386		386		389		(4)		46,822
2018											421		442		444		448		451		7		50,601
2019													426		421		441		444		22		48,212
2020															332		320		306		46		30,208
2021																	334		322		66		28,114
2022																			371		104		30,724
																	Total		$	3,841

Accident	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Year	Unaudited
2013	$	186	$	260	$	291	$	322	$	353	$	371	$	387	$	395	$	402		$	403
2014			181		254		289		317		347		368		383		398			401
2015					155		216		243		270		294		308		321			328
2016							202		271		296		329		352		369			381		Liability for Claims
2017									174		246		284		307		332			352		And Allocated Claim
2018											210		292		326		363			394		Adjustment Expenses,
2019													207		277		311			348		Net of Reinsurance
2020															138		186			209
2021																	123			180		2013 -		Before
2022																				162		2022		2013
																	Total			$	3,158	$	683	$	25
																			Total net liability					$	708

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	45.0	%	17.5	%	7.8	%	7.6	%	6.8	%	4.6	%	3.7	%	2.4	%	1.2	%	0.4	%

Historical average annual percentage payout of incurred claims by age of accident year [Table Text Block]

Business Insurance

General Liability

	(dollars in millions)
	For the Years Ended December 31,
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year																					IBNR Reserves Dec 31, 2022		Cumulative Number of Reported Claims
2013	$	965	$	975	$	958	$	940	$	927	$	933	$	975	$	975	$	963	$	963	$	67	22,807
2014			976		989		983		948		956		1,013		988		979		971		86		22,619
2015					998		956		923		967		1,057		1,087		1,072		1,082		78		21,778
2016							1,075		1,058		1,087		1,187		1,204		1,179		1,185		143		20,662
2017									1,133		1,143		1,196		1,234		1,226		1,243		171		19,450
2018											1,253		1,312		1,344		1,395		1,477		294		19,508
2019													1,447		1,486		1,498		1,567		452		18,691
2020															1,467		1,493		1,470		719		13,622
2021																	1,591		1,589		1,058		12,974
2022																			1,696		1,452		11,568
																	Total		$	13,243

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited
2013	$	35	$	175	$	363	$	498	$	639	$	745	$	816	$	836	$	853	$	868
2014			37		163		321		515		640		750		805		832		849
2015					36		137		336		558		740		828		875		927
2016							35		191		421		649		758		858		951		Liability for Claims
2017									40		180		378		552		724		914		And Allocated Claim
2018											42		202		441		709		939		Adjustment Expenses,
2019													51		233		482		816		Net of Reinsurance
2020															61		244		458
2021																	67		231		2013 -		Before
2022																			81		2022		2013
																	Total		$	7,034	$	6,209	$	3,060
																			Total net liability				$	9,269

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	3.6	%	11.8	%	17.0	%	18.2	%	13.8	%	10.9	%	6.3	%	3.2	%	1.8	%	1.6	%

Commercial Property

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claims Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year											IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2018	$	1,093	$	1,079	$	1,070	$	1,068	$	1,051	$	14	25,094
2019			1,069		1,034		1,031		1,039		3		25,427
2020					1,107		1,025		1,005		38		25,638
2021							1,236		1,190		2		25,436
2022									1,309		227		23,549
							Total		$	5,594

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
	Unaudited
											Liability for Claims
Accident Year											And Allocated Claim
2018	$	561	$	928	$	981	$	1,005	$	1,009	Adjustment Expenses,
2019			610		957		1,001		1,012		Net of Reinsurance
2020					580		857		907
2021							645		1,068		2018 -		Before
2022									624		2022		2018
							Total		$	4,620	$	974	$	135
									Total net liability				$	1,109

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	54.3	%	32.8	%	4.7	%	1.7	%	0.4	%

Commercial Multi-Peril

	(dollars in millions)
	For the Years Ended December 31,
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year																					IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2013	$	1,615	$	1,623	$	1,620	$	1,609	$	1,591	$	1,600	$	1,599	$	1,598	$	1,593	$	1,591	$	19	84,057
2014			1,663		1,627		1,625		1,617		1,626		1,627		1,627		1,622		1,619		23		78,513
2015					1,568		1,625		1,593		1,597		1,606		1,593		1,584		1,571		32		72,237
2016							1,662		1,623		1,598		1,590		1,601		1,587		1,579		42		69,487
2017									1,872		1,928		1,956		1,919		1,935		1,943		80		72,491
2018											1,976		2,114		2,092		2,112		2,121		108		76,526
2019													2,017		2,087		2,089		2,103		182		67,315
2020															2,142		2,141		2,126		424		69,470
2021																	2,164		2,097		521		55,421
2022																			2,502		1,036		42,299
																	Total		$	19,252

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited
2013	$	644	$	987	$	1,167	$	1,304	$	1,410	$	1,475	$	1,516	$	1,532	$	1,544	$	1,556
2014			628		956		1,154		1,328		1,448		1,512		1,544		1,560		1,577
2015					595		970		1,144		1,310		1,409		1,452		1,489		1,512
2016							585		950		1,133		1,278		1,373		1,437		1,477		Liability for Claims
2017									716		1,199		1,388		1,531		1,674		1,763		And Allocated Claim
2018											792		1,302		1,500		1,669		1,815		Adjustment Expenses,
2019													707		1,187		1,423		1,628		Net of Reinsurance
2020															791		1,180		1,373
2021																	744		1,206		2013 -		Before
2022																			817		2022		2013
																	Total		$	14,724	$	4,528	$	291
																			Total net liability				$	4,819

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	36.7	%	22.3	%	10.7	%	9.2	%	6.8	%	3.9	%	2.3	%	1.2	%	0.9	%	0.7	%

Commercial Automobile

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claims Adjustment
	Expenses, Net of Reinsurance
	Unaudited
Accident Year											IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2018	$	1,645	$	1,742	$	1,745	$	1,761	$	1,781	$	63	204,942
2019			1,835		1,951		1,976		1,992		149		207,185
2020					1,788		1,677		1,621		364		142,649
2021							1,741		1,757		561		147,563
2022									1,939		989		141,652
							Total		$	9,090

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
	Unaudited
											Liability for Claims
Accident Year											And Allocated Claim
2018	$	515	$	848	$	1,159	$	1,404	$	1,594	Adjustment Expenses,
2019			539		934		1,269		1,577		Net of Reinsurance
2020					437		696		958
2021							453		800		2018 -		Before
2022									540		2022		2018
							Total		$	5,469	$	3,621	$	235
									Total net liability				$	3,856

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	27.3	%	18.6	%	16.8	%	14.6	%	10.7	%

Workers’ Compensation

	(dollars in millions)
	For the Years Ended December 31,
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year																					IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2013	$	2,553	$	2,545	$	2,540	$	2,506	$	2,463	$	2,423	$	2,354	$	2,321	$	2,304	$	2,273	$	309	135,317
2014			2,554		2,553		2,547		2,476		2,430		2,393		2,352		2,336		2,277		352		131,630
2015					2,644		2,585		2,505		2,441		2,372		2,279		2,220		2,155		398		131,175
2016							2,768		2,690		2,569		2,473		2,372		2,300		2,235		379		131,848
2017									2,779		2,681		2,584		2,483		2,439		2,342		501		125,747
2018											2,744		2,687		2,599		2,503		2,416		625		123,572
2019													2,680		2,714		2,699		2,632		724		120,190
2020															2,559		2,530		2,433		908		96,477
2021																	2,356		2,349		1,006		94,430
2022																			2,293		1,415		92,937
																	Total		$	23,405

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited
2013	$	458	$	954	$	1,237	$	1,413	$	1,525	$	1,604	$	1,659	$	1,700	$	1,729	$	1,756
2014			455		944		1,224		1,399		1,505		1,581		1,634		1,672		1,703
2015					430		893		1,154		1,310		1,411		1,470		1,520		1,547
2016							421		873		1,118		1,272		1,367		1,433		1,486		Liability for Claims
2017									433		890		1,154		1,314		1,418		1,490		And Allocated Claim
2018											440		919		1,169		1,330		1,440		Adjustment Expenses,
2019													466		951		1,229		1,402		Net of Reinsurance
2020															389		794		1,017
2021																	427		848		2013 -		Before
2022																			388		2022		2013
																	Total		$	13,077	$	10,328	$	6,145
																			Total net liability				$	16,473

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	18.4	%	19.7	%	11.1	%	7.1	%	4.6	%	3.1	%	2.4	%	1.6	%	1.3	%	1.2	%

Bond & Specialty Insurance

General Liability

	(dollars in millions)
	For the Years Ended December 31,
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022
	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
	Unaudited
Accident Year																					IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
2013	$	510	$	565	$	606	$	630	$	654	$	607	$	586	$	575	$	564	$	561	$	(8)	4,471
2014			549		571		563		518		473		452		450		449		451		14		4,379
2015					528		524		486		437		395		414		413		414		23		4,229
2016							512		511		504		520		514		510		511		19		4,407
2017									534		517		526		493		524		554		49		4,606
2018											530		548		585		595		605		49		4,850
2019													588		653		665		670		146		5,408
2020															772		753		741		265		5,329
2021																	812		756		404		5,272
2022																			803		616		3,462
																	Total		$	6,066

	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited
2013	$	34	$	154	$	252	$	352	$	400	$	434	$	451	$	462	$	482	$	551
2014			38		150		239		312		367		407		418		426		431
2015					38		141		234		310		338		348		381		383
2016							30		141		233		313		378		446		463		Liability for Claims
2017									38		155		262		340		404		450		And Allocated Claim
2018											49		182		290		383		458		Adjustment Expenses,
2019													51		189		323		410		Net of Reinsurance
2020															52		210		333
2021																	78		210		2013 -		Before
2022																			69		2022		2013
																	Total		$	3,758	$	2,308	$	80
																			Total net liability				$	2,388

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	7.8	%	21.7	%	19.0	%	15.8	%	10.8	%	7.7	%	4.2	%	1.5	%	2.3	%	12.3	%

Fidelity and Surety

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022		IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
	Incurred Claims and Allocated Claims Adjustment
	Expenses, Net of Reinsurance
Accident Year	Unaudited
2018	$	220	$	235	$	220	$	220	$	216	$	(7)	914
2019			203		193		200		185		18		888
2020					274		203		219		95		787
2021							284		172		117		576
2022									310		244		526
							Total		$	1,102

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited										Liability for Claims
											And Allocated Claim
2018	$	64	$	171	$	202	$	206	$	214	Adjustment Expenses,
2019			49		121		147		154		Net of Reinsurance
2020					50		79		110
2021							25		50		2018 -		Before
2022									36		2022		2018
							Total		$	564	$	538	$	26
									Total net liability				$	564

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	21.0	%	29.1	%	14.1	%	2.9	%	3.7	%

Personal Insurance

Automobile

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022		IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
	Incurred Claims and Allocated Claims Adjustment
	Expenses, Net of Reinsurance
Accident Year	Unaudited
2018	$	3,281	$	3,269	$	3,233	$	3,220	$	3,223	$	22	1,051,593
2019			3,362		3,361		3,333		3,339		64		1,033,458
2020					2,829		2,764		2,729		150		810,317
2021							3,716		3,770		426		997,397
2022									4,755		1,334		1,015,497
							Total		$	17,816

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited										Liability for Claims
											And Allocated Claim
2018	$	1,889	$	2,582	$	2,880	$	3,040	$	3,144	Adjustment Expenses,
2019			1,933		2,650		2,958		3,159		Net of Reinsurance
2020					1,571		2,126		2,411
2021							2,062		2,981		2018 -		Before
2022									2,683		2022		2018
							Total		$	14,378	$	3,438	$	216
									Total net liability				$	3,654

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	57.0	%	21.9	%	9.6	%	5.5	%	3.2	%

Homeowners (excluding Other)

	(dollars in millions)
	For the Years Ended December 31,
	2018		2019		2020		2021		2022		IBNR Reserves December 31, 2022		Cumulative Number of Reported Claims
	Incurred Claims and Allocated Claims Adjustment
	Expenses, Net of Reinsurance
Accident Year	Unaudited
2018	$	2,610	$	2,574	$	2,381	$	2,325	$	2,321	$	24	187,375
2019			2,297		2,344		2,343		2,341		12		181,434
2020					3,019		2,967		2,909		68		220,946
2021							3,463		3,486		148		231,949
2022									4,277		1,339		191,981
							Total		$	15,334

	Cumulative Paid Claims and Allocated Claim
	Adjustment Expenses, Net of Reinsurance
Accident Year	Unaudited										Liability for Claims
											And Allocated Claim
2018	$	1,657	$	2,298	$	2,255	$	2,239	$	2,253	Adjustment Expenses,
2019			1,613		2,179		2,269		2,300		Net of Reinsurance
2020					2,019		2,673		2,755
2021							2,334		3,235		2018 -		Before
2022									2,537		2022		2018
							Total		$	13,080	$	2,254	$	73
									Total net liability				$	2,327

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5
	67.2	%	25.0	%	1.6	%	0.3	%	0.6	%

International - Canada

	(dollars in millions)
	For the Years Ended December 31,																				IBNR Reserves December 31, 2022		Cumulative
	2013		2014		2015		2016		2017		2018		2019		2020		2021		2022				Number of
Accident	Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance																						Reported
Year	Unaudited																						Claims
2013	$	464	$	458	$	449	$	438	$	425	$	424	$	414	$	410	$	407	$	410	$	(4)	54,237
2014			410		425		426		415		408		405		405		402		410		(3)		52,294
2015					345		345		345		341		343		342		337		337		(4)		45,217
2016							346		392		392		401		401		400		401		(3)		45,765
2017									331		365		386		386		386		389		(4)		46,822
2018											421		442		444		448		451		7		50,601
2019													426		421		441		444		22		48,212
2020															332		320		306		46		30,208
2021																	334		322		66		28,114
2022																			371		104		30,724
																	Total		$	3,841

Accident	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance
Year	Unaudited
2013	$	186	$	260	$	291	$	322	$	353	$	371	$	387	$	395	$	402		$	403
2014			181		254		289		317		347		368		383		398			401
2015					155		216		243		270		294		308		321			328
2016							202		271		296		329		352		369			381		Liability for Claims
2017									174		246		284		307		332			352		And Allocated Claim
2018											210		292		326		363			394		Adjustment Expenses,
2019													207		277		311			348		Net of Reinsurance
2020															138		186			209
2021																	123			180		2013 -		Before
2022																				162		2022		2013
																	Total			$	3,158	$	683	$	25
																			Total net liability					$	708

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance
	Unaudited
Years	1		2		3		4		5		6		7		8		9		10
	45.0	%	17.5	%	7.8	%	7.6	%	6.8	%	4.6	%	3.7	%	2.4	%	1.2	%	0.4	%