Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities
Net income (loss)	$ (39)	$ 278
Adjustments to reconcile net income to net cash provided by operating activities:
Income (loss) from discontinued operations	38	(5)
Depreciation and amortization	249	263
Stock-based compensation expense	55	60
Deferred income taxes	(15)	19
Gain (Loss) on Disposition of Property Plant Equipment	(2)	(2)
Goodwill and Long-Lived Intangible Asset Impairment	193	1
Changes in assets and liabilities:
Receivables	(102)	(107)
Inventories	(182)	(120)
Current payables and accrued expenses	31	(132)
Deferred service revenue and customer deposits	(36)	20
Employee benefit plans	(18)	(13)
Other assets and liabilities	(9)	8
Net cash provided by operating activities	163	270
Investing activities
Expenditures for property, plant and equipment	(104)	(81)
Proceeds from Sale of Property, Plant, and Equipment	3	6
Additions to capitalized software	(130)	(125)
Other investing activities, net	(4)	0
Net cash used in investing activities	(235)	(200)
Financing activities
Short term borrowings, net	7	10
Payments on term credit facilities	(51)	(37)
Payments on revolving credit facility	(1,433)	(1,110)
Borrowings on revolving credit facility	1,608	1,335
Repurchases of Company common stock	(210)	(350)
Proceeds from employee stock plans	16	11
Tax withholding payments on behalf of employees	(30)	(24)
Proceeds from (Payments for) Other Financing Activities	0	(1)
Net cash used in financing activities	(93)	(166)
Cash flows from discontinued operations
Net cash used in operating activities	(23)	(14)
Effect of exchange rate changes on cash and cash equivalents	(12)	16
Decrease in cash, cash equivalents, and restricted cash	(200)	(94)
Cash and cash equivalents	334	405
Restricted Cash	9	8
Cash, cash equivalents and restricted cash at beginning of period	543	507
Cash, cash equivalents and restricted cash at end of period	$ 343	$ 413