Pension Plans and Other Post Employment Benefit Plans Weighted Average Assumptions used to Determine Benefit Obligations - Pension (Details) - Pension Plan	Dec. 31, 2018	Dec. 31, 2017		Aug. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	3.94%	3.37%
Rate of increase in future compensation levels	2.90%	4.04%	[1]
Predecessor [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount Rate				3.42%	3.80%

[1] The rate of compensation increase represents the single annual effective salary increase that an average plan participant would receive during the participant's entire career at the company. The December 31, 2018 rate is only applicable for non-U.S. pension plans since employees who participate in the U.S. pension plans no longer accrue additional benefits for future service and eligible compensation as of November 30, 2018.