Accounts Receivable, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Factored receivables	$ 1,600	$ 2,700
Restricted Cash	37	$ 48
Factored receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Restricted Cash	16		$ 10
Accrued Liabilities	$ 16		$ 10