Income Taxes (Details 2) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Earnings (loss) before income taxes	$ 547.0	$ (125.0)	$ (226.0)
Expected tax provision (benefit) at U.S. statutory rate (21% in 2018, 35% in 2017 and 2016)	115.0	(44.0)	(79.0)
State income taxes, net of federal	3.0	(21.0)	(33.0)
Net earnings attributable to noncontrolling interests	29.0	32.0	42.0
U.S. manufacturing profits deduction	0.0	6.0	39.0
Foreign tax rate differential	0.0	(6.0)	30.0
U.S. tax on foreign earnings (including GILTI in 2018)	12.0	1.0	(10.0)
Valuation allowance	4.0	(3.0)	50.0
Non-deductible capital costs	0.0	0.0	(17.0)
Tax rate change	(2.0)	17.0	0.0
Other	0.0	(2.0)	(6.0)
U.S. enacted tax rate change (Tax Reform)	0.0	(552.0)	0.0
Transition tax liability and other (Tax Reform)	16.0	61.0	0.0
Income tax provision (benefit)	$ 119.0	$ (575.0)	$ (68.0)
Effective tax rate	21.70%	457.20%	30.00%
Income tax (benefit) provision before Tax Reform	$ 103.0	$ (84.0)	$ (68.0)
Effective tax rate before Tax Reform	18.70%	67.00%	30.00%

Effective Income Tax Rate Reconciliation, Percent, prior to Tax Cuts and Jobs Act of 2017

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Effective Income Tax Rate Reconciliation, US Tax on Foreign Earnings, Amount

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The portion of the difference between total income tax expense or benefit as reported in the income statement during the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to nondeductible capital costs under enacted tax laws.

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