Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Cash provided (required) by operating activities:
Net income	$ 19.8	$ 148.1
Adjustments to reconcile net income to cash provided (required) by operating activities:
Depreciation	45.4	42.2
Amortization	17.9	15.6
Employee benefit plan and stock-based compensation costs	23.7	26.6
Unrealized loss on derivative instruments	6.8	10.4
Deferred income tax provision (benefit), net	(15.7)	17.0
Impairments	34.4	3.9
Other	14.1	6.0
Changes in operating assets and liabilities, net of effects of acquisitions:
Receivables, net	146.9	254.8
Inventories, net	51.5	(23.3)
Accounts payable, trade	(110.9)	(78.5)
Advance payments and progress billings	(53.3)	(138.9)
Income taxes payable, net	5.2	(23.4)
Accrued pension and other post-retirement benefits, net	(8.4)	(13.9)
Other assets and liabilities, net	(68.4)	(71.0)
Cash provided by operating activities	109.0	175.6
Cash provided (required) by investing activities:
Capital expenditures	(35.3)	(86.7)
Investment in joint ventures	(9.2)
Other	1.8	5.3
Cash required by investing activities	(42.7)	(81.4)
Cash provided (required) by financing activities:
Net increase (decrease) in short-term debt	0.1	(0.3)
Net increase in commercial paper	84.1	9.0
Repayments of long-term debt		(0.3)
Purchase of treasury stock	(30.5)	(30.8)
Payments related to taxes withheld on stock-based compensation	(7.7)	(7.6)
Other	(8.7)	(0.9)
Cash provided (required) by financing activities	37.3	(30.9)
Effect of exchange rate changes on cash and cash equivalents	12.5	(7.0)
Increase in cash and cash equivalents	116.1	56.3
Cash and cash equivalents, beginning of period	916.2	638.8
Cash and cash equivalents, end of period	$ 1,032.3	$ 695.1

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