Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating activities
Net income (loss)	$ 120	$ 215
Adjustments to reconcile net income to net cash provided by operating activities:
Loss from discontinued operations	0	15
Loss on Extinguishment of Debt	(20)	0
Depreciation and amortization	269	249
Stock-based compensation expense	76	76
Deferred income taxes	(46)	(35)
Impairment of other assets	4	0
Gain on sale of property, plant and equipment	(2)	(6)
Changes in assets and liabilities:
Receivables	266	(154)
Inventories	28	(78)
Current payables and accrued expenses	(194)	(68)
Contract liabilities	6	37
Employee benefit plans	9	(13)
Other assets and liabilities	(61)	(12)
Net cash provided by operating activities	495	226
Investing activities
Expenditures for property, plant and equipment	(23)	(53)
Proceeds from sale of property, plant and equipment	7	11
Additions to capitalized software	(177)	(167)
Business acquisitions, net	(25)	(86)
Purchases of investments	(14)	0
Proceeds from sales of investments	20	0
Other investing activities, net	(3)	5
Net Cash Provided by (Used in) Investing Activities	(215)	(290)
Financing activities
Short term borrowings, net	0	4
Payments on term credit facilities	(7)	(759)
Payments on revolving credit facilities	(716)	(2,079)
Repayments of Unsecured Debt	(1,300)	(500)
Proceeds from Issuance of Secured Debt	4	350
Borrowings on revolving credit facilities	1,460	2,459
Proceeds from Issuance of Unsecured Debt	1,500	1,000
Payments of Debt Issuance Costs	(21)	(28)
Payment for Debt Extinguishment or Debt Prepayment Cost	(15)	0
Series A Convertible Preferred Stock cash payments	6	302
Repurchases of Common Stock	(41)	(96)
Proceeds from employee stock plans	12	12
Tax withholding payments on behalf of employees	(27)	(29)
Increase (Decrease) in Client Funds Held	(6)	(2)
Financing cash flows from finance leases	(9)	0
Proceeds from (Payments for) Other Financing Activities	(1)	(1)
Net Cash Provided by (Used in) Financing Activities	827	29
Cash flows from discontinued operations
Net cash provided by (used in) operating activities	4	(27)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(16)	(7)
Increase (decrease) in cash, cash equivalents, and restricted cash	1,095	(69)
Cash, cash equivalents and restricted cash at beginning of period	563	532
Cash, Cash Equivalents, Restricted Cash at end of period	$ 1,658	$ 463