Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Asset Impairment Charges	$ 3,287.4	$ 2,484.1	$ 1,792.6
Goodwill, Impairment Loss	3,083.4	1,988.7
Amortization	123.7	126.1	182.6
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Amortization expense, next 12 months	117.0
Amortization expense, year two	114.0
Amortization expense, year three	110.0
Amortization expense, year four	96.0
Amortization expense, year five	93.0
Amortization expense, Thereafter	451.0
Goodwill, Impaired, Accumulated Impairment Loss	$ 6,455.1	3,371.7
Minimum
Goodwill [Line Items]
Reporting unit, percentage of fair value in excess of carrying amount	300.00%
Subsea [Member]
Goodwill [Line Items]
Asset Impairment Charges	$ 2,854.5	1,798.6	1,784.2
Goodwill, Impairment Loss	2,747.5	1,321.9	1,383.0
Surface Technologies [Member]
Goodwill [Line Items]
Asset Impairment Charges	419.3	685.5	$ 4.5
Goodwill, Impairment Loss	$ 335.9	$ 666.8

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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