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Impact of COVID-19 (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 USD ($) employee | Aug. 01, 2020 USD ($) | Aug. 01, 2020 USD ($) Rate
Unusual or Infrequent Item, or Both [Line Items] |  |  |
Total financing activities, COVID-19 | $ 4,500 |  |
Notes subject to exchange and consent offer |  | $ 465 |
Headcount reduction, COVID-19 | employee | 3,900 |  |
Restructuring expense, COVID-19 |  | 154 |
Tax carryback rate, COVID-19 | Rate |  |  | 35.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | Rate |  |  | 21.00%
Income tax receivable, COVID-19 |  | 599 | $ 599
Employee retention payroll tax credits, COVID-19 |  | $ 18 | 60
Revolving Credit Facility [Member] |  |  |
Unusual or Infrequent Item, or Both [Line Items] |  |  |
Proceeds from Lines of Credit |  |  | $ 1,500

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- Definition Unusual or Infrequent Items, or Both, Corporate and Management Headcount Reduction + References No definition available. + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
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