Derivative and Other Financial Instruments (Impact on OCI from Changes in Derivative Fair Value) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Amount of gain/(loss) recognized in OCI	$ 103	$ (1)
Foreign exchange
Derivative [Line Items]
Amount of gain/(loss) recognized in OCI	$ 47	$ (48)

Amount, before tax and reclassification, of gain (loss) from derivative designated and qualifying as net investment hedge.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CCC
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998896-113959

Name:	us-gaap_OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration