Accounts Receivable, Net - Accounts Receivable Sales Arrangements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Accounts Receivable Sales Arrangements [Abstract]
Uncollected accounts receivable sold and derecognized	$ 87		$ 165
Accounts Receivable
Accounts Receivable Sales Arrangements [Abstract]
Accounts receivable sales	53	$ 88
Loss on sales of accounts receivable	$ 0	$ 1