CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Cash flows from operating activities:
Net earnings	$ 475	$ 740	$ 2,660	$ 1,421
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation and amortization			978	1,079
Stock compensation expense			167	180
Impairment	440	289	478	1,739
(Gain) loss on debt extinguishment			0	(26)
Deferred income taxes			14	(682)
(Gain) loss on divestitures			(172)	(503)
Other adjustments, net			158	164
Changes in assets and liabilities
Premium and trade receivables			(2,329)	(1,274)
Other assets			(103)	152
Medical claims liabilities			401	1,976
Unearned revenue			1,878	1,964
Accounts payable and accrued expenses			3,127	686
Other long-term liabilities			583	863
Other operating activities, net			(4)	98
Net cash provided by operating activities			7,836	7,837
Cash flows from investing activities:
Capital expenditures			(576)	(771)
Purchases of investments			(4,729)	(5,118)
Sales and maturities of investments			4,373	2,842
Acquisitions, net of cash acquired			0	(1,457)
Divestiture proceeds, net of divested cash			690	1,362
Net cash (used in) investing activities			(242)	(3,142)
Cash flows from financing activities:
Proceeds from long-term debt			2,170	357
Payments and repurchases of long-term debt			(1,970)	(1,202)
Common stock repurchases			(1,602)	(1,663)
Proceeds from common stock issuances			32	62
Payments for debt extinguishment			0	(14)
Purchase of noncontrolling interest			(87)	0
Other financing activities, net			0	(5)
Net cash (used in) financing activities			(1,457)	(2,465)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash			19	(37)
Net increase in cash, cash equivalents, and restricted cash and cash equivalents			6,156	2,193
Cash and cash equivalents reclassified from (to) held for sale	(36)	(192)	(36)	(192)
Cash, cash equivalents, and restricted cash and cash equivalents, beginning of period			12,330	13,214	$ 13,214
Cash, cash equivalents, and restricted cash and cash equivalents, end of period	18,450	15,215	18,450	15,215	12,330
Supplemental disclosures of cash flow information:
Interest paid			496	462
Income taxes paid			759	448
The following table provides a reconciliation of cash, cash equivalents, and restricted cash and cash equivalents reported within the Consolidated Balance Sheets to the totals above:
Cash and cash equivalents	18,190	14,987	18,190	14,987	12,074
Restricted cash and cash equivalents, included in restricted deposits	260	228	260	228
Total cash, cash equivalents, and restricted cash and cash equivalents	$ 18,450	$ 15,215	$ 18,450	$ 15,215	$ 12,330