Receivables, Loans, Notes Receivable, and Others (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Factored receivables	$ 2,700	$ 2,400
Restricted Cash	65	$ 42
Factored receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restricted Cash	32		$ 7
Accrued Liabilities	$ 32		$ 7