Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities
Net income (loss)	$ 213	$ (202)
Adjustments to reconcile net income to net cash provided by operating activities:
Loss from discontinued operations	2	4
Depreciation and amortization	259	229
Stock-based compensation expense	45	32
Deferred income taxes	39	26
Gain on sale of property, plant and equipment and other assets	0	(1)
Loss on divestiture	1	0
Impairment of long-lived and other assets	2	16
Changes in assets and liabilities:
Receivables	(138)	(80)
Inventories	(128)	(86)
Current payables and accrued expenses	68	17
Deferred service revenue and customer deposits	78	72
Employee benefit plans	(38)	367
Other assets and liabilities	(34)	22
Net cash provided by operating activities	369	416
Investing activities
Expenditures for property, plant and equipment	(45)	(47)
Additions to capitalized software	(115)	(117)
Proceeds from divestiture	47	0
Other investing activities, net	(8)	0
Net cash used in investing activities	(121)	(164)
Financing activities
Short term borrowings, net	(2)	0
Payments on term credit facilities	(84)	(312)
Payments on revolving credit facility	(736)	(977)
Borrowings on revolving credit facility	856	881
Debt issuance costs	(8)	0
Repurchases of Company common stock	(250)	0
Proceeds from employee stock plans	10	12
Tax withholding payments on behalf of employees	(7)	(10)
Other financing activities	(2)	0
Net cash used in financing activities	(223)	(406)
Cash flows from discontinued operations
Net cash used in operating activities	(30)	(27)
Effect of exchange rate changes on cash and cash equivalents	(5)	(27)
Decrease in cash and cash equivalents	(10)	(208)
Cash and cash equivalents at beginning of period	328	511
Cash and cash equivalents at end of period	$ 318	$ 303