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Restructuring Restructuring Other Related Charges (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Restructuring Cost and Reserve [Line Items] |  |
Charges related to voluntary termination program | $ 18 |
John F. North III [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Other Nonrecurring Expense | 5 |
Michael K. Tucker [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Other Nonrecurring Expense | 2 |
Larry D. De Shon [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Other Nonrecurring Expense | $ 1 | $ 14
Mark J. Servodidio [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Other Nonrecurring Expense |  | $ 4

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- Definition Charges related to voluntary termination program + References No definition available. + Details
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- Definition Amount of other expense that is infrequent in occurrence or unusual in nature. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=114868883&loc=SL114871943-224233 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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