Income Taxes (Tables)

6 Months Ended

Jun. 30, 2020

Income Tax Disclosure [Abstract]

Income Tax Rate Reconciliation

Income Tax Rate Reconciliation
	Three Months Ended June 30,						Six Months Ended June 30,
	2020			2019			2020			2019
Tax provision at U.S. federal statutory rate	$	125		$	95		$	197		$	258
Tax-exempt interest	(12		)	(14		)	(24		)	(29		)
Executive compensation	—			1			5			5
Increase in deferred tax valuation allowance	7			—			13			—
Stock-based compensation	—			(1		)	(1		)	(4		)
Other	4			3			5			(1		)
Provision for income taxes	$	124		$	84		$	195		$	229

Roll-forward of Unrecognized Tax Benefits

Rollforward of Unrecognized Tax Benefits
	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Balance, beginning of period	$	14	$	14	$	14	$	14
Gross increases - tax positions in prior period	—		—		—		—
Gross decreases - tax positions in prior period	—		—		—		—
Balance, end of period	$	14	$	14	$	14	$	14