Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Asset Impairment Charges	$ 2,484.1	$ 1,792.6	$ 34.3
Goodwill, Impairment Loss	1,988.7	1,383.0
Amortization	126.1	182.6	244.5
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Amortization expense, next 12 months	125.0
Amortization expense, year two	120.0
Amortization expense, year three	115.0
Amortization expense, year four	112.0
Amortization expense, year five	109.0
Amortization expense, Thereafter	$ 507.0
Minimum
Goodwill [Line Items]
Reporting unit, percentage of fair value in excess of carrying amount	400.00%
Subsea
Goodwill [Line Items]
Asset Impairment Charges	$ 1,798.6	1,784.2	11.5
Goodwill, Impairment Loss	(1,321.9)	1,383.0
Surface Technologies
Goodwill [Line Items]
Asset Impairment Charges	685.5	$ 4.5	$ 10.2
Goodwill, Impairment Loss	$ 666.8