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Income Taxes
6 Months Ended
Jun. 30, 2023
Income Tax Disclosure [Abstract]  
Income Taxes 12. INCOME TAXES
Income Tax Expense
Income Tax Rate Reconciliation
Three Months Ended June 30,Six Months Ended June 30,
2023202220232022
Tax provision at U.S. federal statutory rate$141 $116 $278 $230 
Nontaxable investment income(9)(5)(20)(14)
Other (7)(1)(15)(8)
Provision for income taxes$125 $110 $243 $208 
Uncertain Tax Positions
Rollforward of Unrecognized Tax Benefits
 
Three Months Ended June 30,
Six Months Ended June 30,
 2023202220232022
Balance, beginning of period$23 $17 $22 $16 
Gross increases - tax positions in current period
Lapse of statute of limitations(1)— (1)— 
Balance, end of period$23 $18 $23 $18 
The entire amount of unrecognized tax benefits, if recognized, would affect the effective tax rate in the period of the release.
Other Tax Matters
As of June 30, 2023, the Company has a deferred tax asset for foreign net operating losses of $40 partially offset by a valuation allowance of $21. While the foreign net operating losses ("NOLs") do not expire, this assessment reflects uncertainty in the Company's ability to generate sufficient taxable income in the near term in those specific jurisdictions.
Management has assessed the need for a valuation allowance against its deferred tax assets based on tax character and jurisdiction. In making the assessment, management considered future taxable temporary difference reversals, future taxable income exclusive of reversing temporary differences and carryovers, taxable income in open carry back years and other tax planning strategies which management views as prudent and feasible.
The federal income tax audits for the Company have been completed through 2013. The acquired Navigators Group is currently under IRS audit for the pre-acquisition 2019 tax period. The statute of limitations is closed through the 2019 tax year with the exception of NOL carryforwards utilized in open tax years and the Navigators pre-acquisition 2019 tax period. Management believes that adequate provision has been made in the Company's Condensed Consolidated Financial Statements for any potential adjustments that may result from tax examinations and other tax-related matters for all open tax years.