Variable Interest Entities (Tables)

12 Months Ended

Dec. 31, 2020

Text Block [Abstract]

Summary Of Nonconsolidated VIEs Assets And Liabilities

	December 31, 2020
			Carrying Value of Assets						Carrying Value of Liabilities
In millions	Maximum Exposure to Loss		Investments		Premiums Receivable		Insurance Loss Recoverable		Unearned Premium Revenue		Loss and Loss Adjustment Expense Reserves
Insurance:
Global structured finance:
Mortgage-backed residential	$	1,835	$	21	$	16	$	90	$	14	$	482
Consumer asset-backed		293		—		1		1		1		15
Corporate asset-backed		735		—		5		364		5		—
Total global structured finance		2,863		21		22		455		20		497
Global public finance		1,434		—		7		—		7		2
Total insurance	$	4,297	$	21	$	29	$	455	$	27	$	499

	December 31, 2019
			Carrying Value of Assets						Carrying Value of Liabilities
In millions	Maximum Exposure to Loss		Investments		Premiums Receivable		Insurance Loss Recoverable		Unearned Premium Revenue		Loss and Loss Adjustment Expense Reserves
Insurance:
Global structured finance:
Mortgage-backed residential	$	2,253	$	15	$	19	$	107	$	16	$	436
Mortgage-backed commercial		26		—		—		—		—		—
Consumer asset-backed		384		—		1		1		1		11
Corporate asset-backed		937		—		6		673		7		—
Total global structured finance		3,600		15		26		781		24		447
Global public finance		1,926		—		8		—		9		—
Total insurance	$	5,526	$	15	$	34	$	781	$	33	$	447