Segment Reporting (Details Textuals) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($) segment	Mar. 31, 2021 USD ($)
Segment Reporting [Abstract]
Number of Reportable Segments | segment	3
Whitnell
Segment Reporting [Abstract]
Gain (Loss) on Sale and Maturity of Other Investments, Before Tax	$ 2	$ 2
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) on Sale and Maturity of Other Investments, Before Tax	$ 2	$ 2