Income Taxes Effective Income Tax Rate Reconciliation (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Reconciliation (Table Amounts) [Abstract]
Income tax expense at statutory rate	$ 1,877	$ 783	$ 535
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Research credit	$ (192)	$ (206)	$ (216)
Research credit, Percent	(2.20%)	(5.50%)	(8.50%)
Foreign derived intangible income	$ 50	$ (55)	$ (28)
Foreign derived intangible income, Percent	(0.60%)	(1.50%)	(1.10%)
IT services divestiture nondeductible goodwill	$ 250	$ 0	$ 0
IT services divestiture nondeductible goodwill, Percent	2.80%	0.00%	0.00%
Other, net	$ 48	$ 17	$ 9
Other net, Percent	0.60%	0.50%	0.40%
Total federal and foreign income tax expense	$ 1,933	$ 539	$ 300
Effective income tax rate	21.60%	14.50%	11.80%