CONSOLIDATED STATEMENTS OF CASH FLOW - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities
Net income	$ 2,802	$ 2,934	$ 3,367
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of KAH Hospice	(237)	0	0
Loss (gain) on investment securities, net	205	130	(838)
Gain on Kindred at Home equity method investment	0	(1,129)	0
Equity in net losses (earnings)	4	(65)	(74)
Stock-based compensation	216	180	181
Depreciation	749	640	528
Amortization	96	73	88
Impairment of property and equipment	248	0	0
(Benefit) provision for deferred income taxes	(100)	15	195
Changes in operating assets and liabilities, net of effect of businesses acquired and dispositions:
Receivables	(54)	(280)	(85)
Other assets	(463)	(491)	(581)
Benefits payable	975	104	2,139
Other liabilities	44	176	599
Unearned revenues	32	(65)	71
Other, net	70	40	49
Net cash provided by operating activities	4,587	2,262	5,639
Cash flows from investing activities
Proceeds from sale of KAH Hospice, net	2,701	0	0
Acquisitions, net of cash and cash equivalents acquired	(337)	(4,187)	(709)
Purchases of property and equipment, net	(1,120)	(1,316)	(964)
Purchases of investment securities	(6,049)	(7,197)	(9,125)
Maturities of investment securities	1,365	2,597	4,986
Proceeds from sales of investment securities	2,434	3,547	2,747
Net cash used in investing activities	(1,006)	(6,556)	(3,065)
Cash flows from financing activities
Receipts (withdrawals) from contract deposits, net	1,993	(306)	(939)
Proceeds from issuance of senior notes, net	1,982	2,984	1,088
Repayment of senior notes	(1,000)	0	(400)
(Repayments) proceeds from issuance of commercial paper, net	(376)	352	295
Proceeds from term loan	0	2,500	1,000
Repayment of term loan	(2,000)	(2,078)	(1,000)
Debt issue costs	(6)	(31)	0
Common stock repurchases	(2,096)	(79)	(1,820)
Dividends paid	(392)	(354)	(323)
Change in book overdraft	(28)	6	95
Other, net	9	21	49
Net cash (used in) provided by financing activities	(1,914)	3,015	(1,955)
Increase (decrease) in cash and cash equivalents	1,667	(1,279)	619
Cash and cash equivalents at beginning of period	3,394	4,673	4,054
Cash and cash equivalents at end of period	5,061	3,394	4,673
Supplemental cash flow disclosures:
Interest payments	354	285	258
Income tax payments, net	758	227	1,132
Details of businesses acquired in purchase transactions:
Fair value of assets acquired, net of cash acquired	460	9,804	819
Less: Fair value of liabilities assumed	(70)	(3,235)	(110)
Less: Noncontrolling interests acquired	(53)	(22)	0
Less: Remeasured existing Kindred at Home equity method investment	0	(2,360)	0
Cash paid for acquired businesses, net of cash acquired	$ 337	$ 4,187	$ 709