Income Taxes (Unaudited) Effective Income Tax Rate Reconciliation (Details 1) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Federal and foreign income tax expense	$ 175	$ 212	$ 568	$ 1,298
Effective income tax rate	16.10%	16.60%	16.80%	23.20%
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	$ 42	$ 43	$ 124	$ 142
Income Tax Reconciliation Deductions FDII	16	$ 12	46	$ 32
Income Taxes Receivable	$ 627		$ 627		$ 571