Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Activities
Net income/(loss)	$ (13)	$ 47
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:
Share-based compensation expense	16	15
Currency exchange rate differences on financial transactions and other (gains)/losses	7	(2)
Depreciation and amortization	214	179
Changes in operating assets and liabilities, net of effect of businesses acquired and divested:
Trade and other receivables, net	(107)	(115)
Prepaid expenses and other assets	(13)	(50)
Accounts payable and other current liabilities and deferred revenues	(92)	(130)
Other non-current liabilities	(20)	(21)
Interest payable	44	44
Income taxes	(41)	(10)
Net cash provided by/(used in ) operating activities	(5)	(43)
Investing Activities
Acquisition of subsidiaries and affiliates, net of cash acquired	(27)	(59)
Additions to property, plant and equipment and other assets	(4)	(30)
Additions to intangible assets	(108)	(92)
Other investing activities	(3)	1
Net cash used in investing activities	(142)	(180)
Financing Activities
Net borrowings under revolving credit facility	135	263
Repayment of debt	(14)	(14)
Cash dividends paid to shareholders	(21)	(124)
Activity from share-based compensation plans	(4)	(3)
Proceeds from employee stock purchase plan	1	1
Finance leases	(11)	(16)
Other financing activities	(4)	(3)
Net cash provided by/(used in) financing activities	82	104
Effect of exchange-rate changes on cash and cash equivalents	(30)	(3)
Net increase/(decrease) in cash and cash equivalents	(95)	(122)
Cash and cash equivalents at beginning of period	454	524
Cash and cash equivalents at end of period	359	402
Supplemental Cash Flow Information
Cash paid for income taxes	(52)	(42)
Cash paid for interest, net of amounts capitalized	$ (50)	$ (55)