Income Taxes (Unaudited) (Tables)

6 Months Ended

Jun. 30, 2023

Income Tax Disclosure [Abstract]

Schedule of Income Tax Expense and Effective Income Tax Rates

	Three Months Ended June 30						Six Months Ended June 30
$ in millions	2023			2022			2023			2022
Federal and foreign income tax expense	$	175		$	204		$	331		$	393
Effective income tax rate	17.7		%	17.7		%	16.7		%	17.1		%