Consolidated Balance Sheets - USD ($) shares in Millions, $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 21,375	$ 16,921
Short-term investments	2,532	2,860
Accounts receivable, net of allowances of $954 and $990	14,216	12,870
Other current receivables, net of allowances of $993 and $1,047	13,866	12,534
Assets under management	4,449	4,076
Prepaid expenses and other current assets	5,320	4,457
Total current assets	61,758	53,718
Long-term investments	43,114	41,242
Property, equipment and capitalized software, net of accumulated depreciation and amortization of $5,992 and $5,230	8,969	8,626
Goodwill	75,795	71,337
Other intangible assets, net of accumulated amortization of $5,636 and $5,455	10,044	10,856
Other assets	12,526	11,510
Total assets	212,206	197,289
Current liabilities:
Medical costs payable	24,483	21,872
Accounts payable and accrued liabilities	24,643	22,495
Short-term borrowings and current maturities of long-term debt	3,620	4,819
Unearned revenues	2,571	2,842
Other current liabilities	22,975	20,392
Total current liabilities	78,292	72,420
Long-term debt, less current maturities	42,383	38,648
Deferred Income Taxes	3,265	3,367
Other liabilities	11,787	12,315
Total liabilities	135,727	126,750
Commitments and contingencies (Note 12)
Redeemable noncontrolling interests	1,434	2,211
Equity:
Preferred stock, $0.001 par value - 10 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.01 par value - 3,000 shares authorized; 941 and 946 issued and outstanding	10	10
Additional paid-in capital	0	0
Retained earnings	77,134	69,295
Accumulated other comprehensive loss	(5,384)	(3,814)
Nonredeemable noncontrolling interests	3,285	2,837
Total equity	75,045	68,328
Total liabilities, redeemable noncontrolling interests and equity	$ 212,206	$ 197,289
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10	10
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	3,000	3,000
Common stock, shares issued	941	946
Common Stock, Shares, Outstanding	941	946