Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash provided (required) by operating activities
Net income	$ 19.8	$ 91.4
Adjustments to reconcile net income (loss) to cash provided (required) by operating activities
Depreciation	88.9	86.4
Amortization	30.5	45.4
Impairments	0.9	0.4
Employee benefit plan and share-based compensation costs	20.9	7.4
Deferred income tax provision (benefit), net	(90.8)	(59.9)
Unrealized loss on derivative instruments and foreign exchange	29.2	7.3
Income from equity affiliates, net of dividends received	(9.9)	(13.2)
Other	72.7	136.0
Changes in operating assets and liabilities, net of effects of acquisitions
Trade receivables, net and contract assets	131.8	(522.7)
Inventories, net	(61.5)	(59.7)
Accounts payable, trade	(148.6)	(332.2)
Contract liabilities	186.1	462.0
Income taxes payable (receivable), net	20.8	15.9
Other current assets and liabilities, net	(126.3)	39.7
Other noncurrent assets and liabilities, net	43.1	105.8
Cash provided (required) by operating activities	121.4	(201.6)
Cash provided (required) by investing activities
Capital expenditures	(178.2)	(53.2)
Payment to acquire debt securities	(59.7)
Acquisitions, net of cash acquired		(62.0)
Proceeds from sale of assets	0.9	1.8
Other		(0.2)
Cash provided (required) by investing activities	(237.0)	(113.6)
Cash required by financing activities
Net increase in short-term debt	114.5	2.4
Net decrease in commercial paper	(450.4)	(117.6)
Proceeds from issuance of long-term debt	96.2	0.5
Repayments of long-term debt	0.0	(5.3)
Purchase of ordinary shares	(33.0)	(92.6)
Settlements of mandatorily redeemable financial liability	(174.9)	0.0
Other	0.0	1.4
Cash required by financing activities	(447.6)	(211.2)
Effect of changes in foreign exchange rates on cash and cash equivalents	(11.5)	9.6
Increase (decrease) in cash and cash equivalents	(574.7)	(516.8)
Cash and cash equivalents, beginning of period	5,540.0	6,737.4
Cash and cash equivalents, end of period	$ 4,965.3	$ 6,220.6