Reserve for Unpaid Losses and Loss Adjustment Expenses (Tables)

3 Months Ended

Mar. 31, 2020

Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]

Unfavorable (Favorable) Prior Accident Year Development

	For the three months ended March 31,
	2020			2019
Workers’ compensation	$	(17	)	$	(20	)
Workers’ compensation discount accretion	9			8
General liability	12			6
Marine	—			—
Package business	1			5
Commercial property	(7		)	(2		)
Professional liability	1			—
Bond	—			—
Assumed reinsurance	—			—
Automobile liability - Commercial Lines	5			—
Automobile liability - Personal Lines	(6		)	(5		)
Homeowners	(2		)	1
Net asbestos reserves	—			—
Net environmental reserves	—			—
Catastrophes	(13		)	(8		)
Uncollectible reinsurance	—			—
Other reserve re-estimates, net	11			4
Prior accident year development before change in deferred gain	(6		)	(11		)
Change in deferred gain on retroactive reinsurance included in other liabilities [1]	29			—
Total prior accident year development	$	23		$	(11	)

Property, Liability and Casualty Insurance Product Line

Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]

Rollforward of Liabilities for Unpaid Losses and Loss Adjustment Expenses

	For the three months ended March 31,
	2020			2019
Beginning liabilities for unpaid losses and loss adjustment expenses, gross	$	28,261		$	24,584
Reinsurance and other recoverables	5,275			4,232
Beginning liabilities for unpaid losses and loss adjustment expenses, net	22,986			20,352
Provision for unpaid losses and loss adjustment expenses
Current accident year	1,883			1,641
Prior accident year development [1]	23			(11		)
Total provision for unpaid losses and loss adjustment expenses	1,906			1,630
Change in deferred gain on retroactive reinsurance included in other liabilities [1]	(29		)	—
Payments
Current accident year	(304		)	(271		)
Prior accident years	(1,491		)	(1,309		)
Total payments	(1,795		)	(1,580		)
Foreign currency adjustment	(20		)	—
Ending liabilities for unpaid losses and loss adjustment expenses, net	23,048			20,402
Reinsurance and other recoverables	5,332			4,209
Ending liabilities for unpaid losses and loss adjustment expenses, gross	$	28,380		$	24,611

[1] Prior accident year development does not include the benefit of a portion of losses ceded under the Navigators adverse development cover ('Navigators ADC') which, under retroactive reinsurance accounting, is deferred and is recognized over the period the ceded losses are recovered in cash from National Indemnity Company ("NICO"). For additional information regarding the Navigators ADC agreement, please refer to Adverse Development Covers discussion below.

Group Insurance Policy [Member]

Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]

Rollforward of Liabilities for Unpaid Losses and Loss Adjustment Expenses

	For the three months ended March 31,
	2020			2019
Beginning liabilities for unpaid losses and loss adjustment expenses, gross	$	8,256		$	8,445
Reinsurance recoverables [1]	246			239
Beginning liabilities for unpaid losses and loss adjustment expenses, net	8,010			8,206
Provision for unpaid losses and loss adjustment expenses
Current incurral year	1,148			1,150
Prior year's discount accretion	57			58
Prior incurral year development [2]	(163		)	(120		)
Total provision for unpaid losses and loss adjustment expenses [3]	1,042			1,088
Payments
Current incurral year	(278		)	(314		)
Prior incurral years	(821		)	(855		)
Total payments	(1,099		)	(1,169		)
Ending liabilities for unpaid losses and loss adjustment expenses, net	7,953			8,125
Reinsurance recoverables	249			237
Ending liabilities for unpaid losses and loss adjustment expenses, gross	$	8,202		$	8,362

[1] Reflects a cumulative effect adjustment of $(1) representing an adjustment to the ACL recorded on adoption of accounting guidance for credit losses on January 1, 2020. See Note 1 - Basis of Presentation and Significant Accounting Policies of Notes to Condensed Consolidated Financial Statements for further information.

[2] Prior incurral year development represents the change in estimated ultimate incurred losses and loss adjustment expenses for prior incurral years on a discounted basis.

[3]

Includes unallocated loss adjustment expenses of $44 and $46 for the three months ended March 31, 2020 and 2019, respectively, that are recorded in insurance operating costs and other expenses in the Condensed Consolidated Statements of Operations