Income Taxes (Tables)

9 Months Ended

Sep. 30, 2021

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 September 30,								Nine months ended September 30,
	2021				2020				2021				2020
Tax at statutory rate:	$	39	21.0	%	$	129	21.0	%	$	383	21.0	%	$	38	21.0	%
Increase (decrease) resulting from:
Tax-exempt income from municipal bonds	(5)		(2.7)		(5)		(0.8)		(15)		(0.8)		(15)		(8.2)
Dividend received exclusion	(5)		(2.7)		(5)		(0.8)		(14)		(0.8)		(13)		(7.1)
Other	2		1.2		11		1.8		(6)		(0.3)		6		3.0
Provision for income taxes	$	31	16.8	%	$	130	21.2	%	$	348	19.1	%	$	16	8.7	%