Supplemental Balance Sheet Information (Details) $ in Millions	Jun. 30, 2021 USD ($) days	Dec. 31, 2020 USD ($)
Accounts and Notes Receivable [Abstract]
Number of days from the period in which the corresponding sales occur that trade receivables are generally due \| days	30
Accounts and notes receivable, gross	$ 559	$ 579
Allowance for doubtful accounts	(34)	(45)
Accounts and notes receivable, net	$ 525	$ 534

Amount, after allowance for credit loss, of accounts and financing receivables, classified as current. Includes, but is not limited to, notes and loan receivable.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant