Income Taxes (Tables)

9 Months Ended

Sep. 30, 2020

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,
	2020				2019				2020				2019
Tax at statutory rate:	$	129	21.0	%	$	62	21.0	%	$	38	21.0	%	$	355	21.0	%
Increase (decrease) resulting from:
Tax-exempt income from municipal bonds	(5)		(0.8)		(5)		(1.7)		(15)		(8.2)		(14)		(0.8)
Dividend received exclusion	(5)		(0.8)		(3)		(1.0)		(13)		(7.1)		(11)		(0.7)
Other	11		1.8		(8)		(2.7)		6		3.0		(10)		(0.6)
Provision for income taxes	$	130	21.2	%	$	46	15.6	%	$	16	8.7	%	$	320	18.9	%