Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 7,276	$ 8,406
Short-term investments	1,937	3,031
Accounts receivable, net of allowances of $196 and $189	3,052	2,709
Other current receivables, net of allowances of $169 and $206	3,998	2,889
Assets under management	2,757	2,773
Deferred income taxes	430	463
Prepaid expenses and other current assets	930	781
Total current assets	20,380	21,052
Long-term investments	19,605	17,711
Property, equipment and capitalized software, net of accumulated depreciation and amortization of $2,675 and $2,564	4,010	3,939
Goodwill	31,604	31,286
Other intangible assets, net of accumulated amortization of $2,283 and $1,824	3,844	4,682
Other assets	2,439	2,215
Total assets	81,882	80,885
Current liabilities:
Medical costs payable	11,575	11,004
Accounts payable and accrued liabilities	7,458	6,984
Other policy liabilities	5,279	4,910
Commercial paper and current maturities of long-term debt	1,969	2,713
Unearned revenues	1,600	1,505
Total current liabilities	27,881	27,116
Long-term debt, less current maturities	14,891	14,041
Future policy benefits	2,465	2,444
Deferred income taxes	1,796	2,450
Other liabilities	1,525	1,535
Total liabilities	48,558	47,586
Commitments and contingencies (Note 12)
Redeemable noncontrolling interest	1,175	2,121
Shareholders' 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; 988 and 1,019 issued and outstanding	10	10
Additional paid-in capital	0	66
Retained earnings	33,047	30,664
Accumulated other comprehensive (loss) income	(908)	438
Total shareholders' equity	32,149	31,178
Total liabilities and shareholders’ equity	$ 81,882	$ 80,885