Revenue Costs to Obtain a Contract (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Capitalized Contract Cost, Net	$ 92	$ 116
Capitalized Contract Cost, Amortization	31	18	$ 11
Other Current Assets
Capitalized Contract Cost, Net	34	30
Other Long-Term Assets
Capitalized Contract Cost, Net	$ 58	$ 86

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123353750&loc=SL49131252-203054

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