Restructuring Charges (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges	$ 20	$ 0
Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance costs	14
Facility Closing
Restructuring Cost and Reserve [Line Items]
Other restructuring costs	$ 6

Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868

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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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