CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Cash flows from operating activities:
Net earnings	$ 1,055	$ (171)	$ 2,185	$ 681
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation and amortization			650	718
Stock compensation expense			117	129
Impairment	18	1,450	38	1,450
(Gain) loss on debt extinguishment			0	(16)
(Gain) on acquisition			0	(2)
Deferred income taxes			(160)	(417)
(Gain) on divestiture			(172)	0
Other adjustments, net			68	162
Changes in assets and liabilities
Premium and trade receivables			(319)	(1,288)
Other assets			(325)	(245)
Medical claims liabilities			139	2,089
Unearned revenue			1,895	75
Accounts payable and accrued expenses			618	41
Other long-term liabilities			2,081	1,058
Other operating activities, net			0	70
Net cash provided by operating activities			6,815	4,505
Cash flows from investing activities:
Capital expenditures			(440)	(524)
Purchases of investments			(3,199)	(3,114)
Sales and maturities of investments			2,293	2,005
Acquisitions, net of cash acquired			0	(1,512)
Divestiture proceeds, net of divested cash			669	0
Net cash (used in) investing activities			(677)	(3,145)
Cash flows from financing activities:
Proceeds from long-term debt			1,281	331
Payments and repurchases of long-term debt			(1,322)	(900)
Common stock repurchases			(828)	(420)
Proceeds from common stock issuances			21	38
Payments for debt extinguishment			0	(27)
Purchase of noncontrolling interest			(85)	0
Other financing activities, net			0	(6)
Net cash (used in) financing activities			(933)	(984)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash			(7)	(9)
Net increase in cash, cash equivalents, and restricted cash and cash equivalents			5,198	367
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	17,528	13,581	17,528	13,581	12,330
Supplemental disclosures of cash flow information:
Interest paid			348	327
Income taxes paid			592	411
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	17,170	13,435	17,170	13,435	12,074
Restricted cash and cash equivalents, included in restricted deposits	358	146	358	146
Total cash, cash equivalents, and restricted cash and cash equivalents	$ 17,528	$ 13,581	$ 17,528	$ 13,581	$ 12,330