Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Cash receipts from customers	$ 173,728	$ 175,567
Cash paid for inventory, prescriptions dispensed and health services rendered	(90,845)	(101,318)
Insurance benefits paid	(52,485)	(41,108)
Cash paid to other suppliers and employees	(21,124)	(17,686)
Interest and investment income received	839	801
Interest paid	(1,392)	(1,131)
Income taxes paid	(729)	(1,779)
Net cash provided by operating activities	7,992	13,346
Cash flows from investing activities:
Proceeds from sales and maturities of investments	4,418	3,640
Purchases of investments	(6,781)	(4,499)
Purchases of property and equipment	(1,343)	(1,575)
Acquisitions (net of cash and restricted cash acquired)	(73)	(16,474)
Other	60	32
Net cash used in investing activities	(3,719)	(18,876)
Cash flows from financing activities:
Commercial paper borrowings (repayments), net	(200)	1,000
Proceeds from issuance of short-term loan	0	5,000
Repayment of short-term loan	0	(5,000)
Proceeds from issuance of long-term debt	4,959	10,898
Repayments of long-term debt	(37)	(1,787)
Repurchase of common stock	(3,024)	(2,016)
Dividends paid	(1,698)	(1,574)
Proceeds from exercise of stock options	228	120
Payments for taxes related to net share settlement of equity awards	(176)	(168)
Other	(30)	(121)
Net cash provided by financing activities	22	6,352
Net increase in cash, cash equivalents and restricted cash	4,295	822
Cash, cash equivalents and restricted cash at the beginning of the period	8,525	13,305
Cash, cash equivalents and restricted cash at the end of the period	12,820	14,127
Reconciliation of net income to net cash provided by operating activities:
Net income	2,892	4,056
Adjustments required to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,289	2,105
Stock-based compensation	270	307
Deferred income taxes and other items	(341)	87
Change in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable, net	2,798	(804)
Inventories	1,937	1,800
Other assets	(2,241)	(913)
Accounts payable and pharmacy claims and discounts payable	1,191	(118)
Health care costs payable and other insurance liabilities	1,581	4,334
Other liabilities	(2,384)	2,492
Net cash provided by operating activities	$ 7,992	$ 13,346