v3.19.3

Supplemental Financial Statement Information - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid expenses	$ 466	$ 265
Other receivables	581	416
Other	269	179
Prepaid expenses and other current assets	$ 1,316	$ 860

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