Income Taxes (Unaudited) (Tables)

6 Months Ended

Jun. 30, 2022

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	2022			2021			2022			2021
Federal and foreign income tax expense	$	204		$	265		$	393		$	1,086
Effective income tax rate	17.7		%	20.4		%	17.1		%	25.2		%