Business Combinations (Details) - OKI Brasil [Member] $ in Millions	3 Months Ended
	Jun. 30, 2020 USD ($)
Business Acquisition [Line Items]
Purchase price	$ 5
Cash acquired	1
Investments acquired	9
Tangible assets acquired	18
Deferred Gain on business acquisition	(10)
Liabilities assumed	(13)
Total purchase consideration	5
Business combinations, Purchase Considerations, Payable Two Years From Acquisition Date [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred, Liabilities Incurred	2
Business combinations, purchase considerations, payable six years from acquisition date [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred, Liabilities Incurred	$ 3