Income taxes

3 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Abstract]

Income taxes

Income taxes

Provision for income taxes is based on the following:

	For Three Months Ended
	March 31,
	2024			2023
Taxes calculated using the estimated annual effective tax rate	$	176		$	276
Discrete tax items	12			(38)
Provision for income taxes	$	188		$	238
Effective tax rate	14.5		%	12.2		%

The effective tax rate differs from the 21% U.S. statutory corporate tax rate due to the effect of U.S. tax benefits.