Property Casualty Loss and Loss Expenses (Tables)

6 Months Ended

Jun. 30, 2021

Premiums Written, Net [Abstract]

Consolidated Property Casualty Loss And Loss Expense Reserves

This table summarizes activity for our consolidated property casualty loss and loss expense reserves:

(Dollars in millions)	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Gross loss and loss expense reserves, beginning of period	$	6,880	$	6,153	$	6,677	$	6,088
Less reinsurance recoverable	262		294		277		342
Net loss and loss expense reserves, beginning of period	6,618		5,859		6,400		5,746
Net incurred loss and loss expenses related to:
Current accident year	949		1,054		1,982		2,017
Prior accident years	(119)		(47)		(229)		(80)
Total incurred	830		1,007		1,753		1,937
Net paid loss and loss expenses related to:
Current accident year	334		369		477		555
Prior accident years	433		382		995		1,013
Total paid	767		751		1,472		1,568
Net loss and loss expense reserves, end of period	6,681		6,115		6,681		6,115
Plus reinsurance recoverable	274		294		274		294
Gross loss and loss expense reserves, end of period	$	6,955	$	6,409	$	6,955	$	6,409