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Income Taxes
 3 Months Ended
Mar. 31, 2024
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The following table presents provision for income taxes (in millions, except for effective tax rate):
Three Months Ended
March 31,
20232024
Income before provision for income taxes$18,205 $28,315 
Provision for income taxes$3,154 $4,653 
Effective tax rate17.3 %16.4 %
We are subject to income taxes in the U.S. and foreign jurisdictions. Significant judgment is required in evaluating our uncertain tax positions and determining our provision for income taxes. The total amount of gross unrecognized tax benefits was $9.4 billion and $10.2 billion, of which $7.4 billion and $8.1 billion, if recognized, would affect our effective tax rate, as of December 31, 2023 and March 31, 2024, respectively.