Income Taxes (Tables)

6 Months Ended

Jun. 30, 2023

Income Tax Disclosure [Abstract]

Differences Between Statutory Income Tax Rate And Effective Income Tax Rate

The differences between the 21% statutory federal income tax rate and our effective income tax rate were as follows:

(Dollars in millions)	Three months ended June 30,								Six months ended June 30,
	2023				2022				2023				2022
Tax at statutory rate:	$	140	21.0	%	$	(220)	21.0	%	$	196	21.0	%	$	(294)	21.0	%
Increase (decrease) resulting from:
Tax-exempt income from municipal bonds	(5)		(0.8)		(5)		0.5		(10)		(1.1)		(10)		0.7
Dividend received exclusion	(6)		(0.9)		(5)		0.5		(11)		(1.2)		(10)		0.7
Other	3		0.5		(5)		0.3		—		—		(6)		0.4
Provision (benefit) for income taxes	$	132	19.8	%	$	(235)	22.3	%	$	175	18.7	%	$	(320)	22.8	%