Revenue from Contracts with Customers - Contract Receivables, Assets, and Current Deferred Revenue (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 336	$ 331
Contract assets	10	11
Deferred revenue, current	552	499
Long-term deferred revenue	$ 27	$ 38

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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