CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 79	$ (6)
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization (including amortization netted against equity earnings in affiliates and revenues)	258	262
Charges related to other operating expenses and other income (expense)	23	15
Loss on debt extinguishment	56	46
Stock-based compensation expense	65	115
Other non-cash and non-operating items, net	9	0
Increase (decrease) in cash, excluding the effects of acquisitions and dispositions, resulting from changes in:
Accounts receivable, current and long-term	136	61
Other assets, current and long-term	(26)	16
Accounts payable and other liabilities, current and long-term	(170)	(102)
Income tax accounts	(9)	(21)
Net cash (used in) provided by operating activities	421	386
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property and equipment	(58)	(53)
Payments to secure customer service contracts, including outlays for conversion, and capitalized systems development costs	(59)	(64)
Other investing activities, net	1	(6)
Net cash provided by (used in) investing activities	(116)	(123)
CASH FLOWS FROM FINANCING ACTIVITIES
Short-term borrowings, net	119	498
Proceeds from issuance of long-term debt	1,300	896
Payment of call premiums and debt issuance cost	(57)	(43)
Principal payments on long-term debt	(1,456)	(1,651)
Payment of taxes related to net settlement of equity awards	(60)	(39)
Distributions and dividends paid to noncontrolling interests and redeemable noncontrolling interest	(43)	(58)
Other financing activities, net	10	24
Net cash provided by (used in) financing activities	(187)	(373)
Effect of exchange rate changes on cash and cash equivalents	0	(8)
Change in cash and cash equivalents	118	(118)
Cash and cash equivalents at beginning of period	385	429
Cash and cash equivalents at end of period	503	311
NON-CASH TRANSACTIONS
Capital leases, net of trade-ins	54	44
Other financing arrangements	$ 100	$ 22