Derivative Financial Instruments - Fair Value of Foreign Exchange Contracts (Details) - Designated as Hedging Instrument - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Assets	$ 0	$ 4
Other non-current liabilities
Derivatives, Fair Value [Line Items]
Liabilities	$ (117)	$ (24)

Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

No definition available.

Name:	us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant