Segment Information - Major Customers (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Loss Contingencies [Line Items]
Revenues from external customers	$ 60,202	$ 48,308	$ 117,167	$ 94,548
Revenue | Customer Concentration Risk | U.S. Federal Government Agencies
Loss Contingencies [Line Items]
Concentration percentage	10.00%		12.00%
Revenue | Customer Concentration Risk | Single Pharmacy Benefit Client
Loss Contingencies [Line Items]
Concentration percentage	16.00%		16.00%