CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 728	$ 356
Accounts receivable, less allowance for doubtful accounts ($901 at March 31, 2016 and $887 at December 31, 2015)	2,807	2,704
Inventories of supplies, at cost	312	309
Income tax receivable		7
Assets held for sale	2	550
Other current assets	1,280	1,245
Total current assets	5,129	5,171
Investments and other assets	1,142	1,175
Deferred income taxes	726	776
Property and equipment, at cost, less accumulated depreciation and amortization ($4,538 at March 31, 2016 and $4,323 at December 31, 2015)	7,961	7,915
Goodwill	7,122	6,970
Other intangible assets, at cost, less accumulated amortization ($701 at March 31, 2016 and $659 at December 31, 2015)	1,686	1,675
Total assets	23,766	23,682
Current liabilities:
Current portion of long-term debt	172	127
Accounts payable	1,228	1,380
Accrued compensation and benefits	772	880
Professional and general liability reserves	161	177
Accrued interest payable	307	205
Liabilities held for sale		101
Accrued legal settlement costs	423	294
Other current liabilities	1,205	1,144
Total current liabilities	4,268	4,308
Long-term debt, net of current portion	14,350	14,383
Professional and general liability reserves	623	578
Defined benefit plan obligations	593	595
Other long-term liabilities	625	594
Total liabilities	$ 20,459	$ 20,458
Commitments and contingencies
Redeemable noncontrolling interests in equity of consolidated subsidiaries	$ 2,381	$ 2,266
Shareholders' equity:
Common stock, $0.05 par value; authorized 262,500,000 shares; 147,692,493 shares issued at March 31, 2016 and 146,920,454 shares issued at December 31, 2015	7	7
Additional paid-in capital	4,804	4,815
Accumulated other comprehensive loss	(160)	(164)
Accumulated deficit	(1,609)	(1,550)
Common stock in treasury, at cost, 48,424,273 shares at March 31, 2016 and 48,425,298 shares at December 31, 2015	(2,417)	(2,417)
Total shareholders' equity	625	691
Noncontrolling interests	301	267
Total equity	926	958
Total liabilities and equity	$ 23,766	$ 23,682