Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income	$ 36	$ 99
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	298	296
Government settlement and related costs		8
Stock-based compensation expense	14	14
Loss on sale, net		1
Impairment of hospitals sold or held for sale	1	2
Impairment of long-lived assets	17
Loss from early extinguishment of debt		8
Other non-cash expenses, net	14	(7)
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Patient accounts receivable	(109)	(202)
Supplies, prepaid expenses and other current assets	(14)	14
Accounts payable, accrued liabilities and income taxes	64	(284)
Other	(27)	(10)
Net cash provided by (used in) operating activities	294	(61)
Cash flows from investing activities:
Acquisitions of facilities and other related equipment	(99)	(13)
Purchases of property and equipment	(224)	(241)
Proceeds from disposition of hospitals and other ancillary operations	12	62
Proceeds from sale of property and equipment	4	3
Purchases of available-for-sale securities	(37)	(59)
Proceeds from sales of available-for-sale securities	40	56
Increase in other investments	(67)	(39)
Net cash used in investing activities	(371)	(231)
Cash flows from financing activities:
Proceeds from exercise of stock options		17
Repurchase of restricted stock shares for payroll tax withholding requirements	(7)	(20)
Deferred financing costs and other debt-related costs		(20)
Redemption of noncontrolling investments in joint ventures	(16)	(7)
Distributions to noncontrolling investors in joint ventures	(18)	(23)
Borrowings under credit agreements	1,564	1,251
Proceeds from receivables facility	31	75
Repayments of long-term indebtedness	(1,480)	(1,268)
Net cash provided by financing activities	74	5
Net change in cash and cash equivalents	(3)	(287)
Cash and cash equivalents at beginning of period	184	509
Cash and cash equivalents at end of period	181	222
Supplemental disclosure of cash flow information:
Interest payments	(307)	(300)
Income tax (payments) refunds, net	$ 0	$ (1)