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v3.20.4

Debt - Narrative (Details) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) | Jun. 28, 2020 USD ($) | Dec. 31, 2019 USD ($)
Debt Instrument [Line Items] |  |  |  |
Write-off of debt issuance costs and debt discounts or premiums | $ 457,000,000 |  |  |
Outstanding borrowings | 9,095,000,000 | $ 9,095,000,000 |  | $ 9,458,000,000
Debt repurchased amount | 160,000,000 | 160,000,000 |  |
Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt repurchased amount | 160,000,000 | 160,000,000 |  |
Debt repurchased | 95,000,000 | 95,000,000 |  |
Gains (losses) on repurchases of debt |  | 65,000,000 |  |
Revolving credit facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Revolving credit, maximum borrowing capacity | 4,000,000,000.0 | 4,000,000,000.0 |  |
Revolving credit, outstanding | $ 54,000,000 | $ 54,000,000 |  |
Revolving credit facility | Alternative base rate (ABR) | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Variable rate percentage |  | 1.50% |  |
Revolving credit facility | London interbank offered rate (LIBOR) | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Variable rate percentage |  | 2.50% |  |
FLLO Term Loan Facility | Term Loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Applicable margin | 7.00% |  |  |
Applicable margin increase | 0.0200 | 0.0200 |  |
FLLO Term Loan Facility | Term Loan | Alternative base rate (ABR) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Variable rate percentage | 3.25% |  |  |
FLLO Term Loan Facility | Term Loan | London interbank offered rate (LIBOR) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Variable rate percentage | 8.00% |  |  |
Debtor-in-Possession Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Revolving credit, maximum borrowing capacity |  |  | $ 2,104,000,000 |
Debtor-in-Possession Credit Agreement | Term Loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt |  |  | 1,179,000,000 |
Debtor-in-Possession Credit Agreement | Revolving credit facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Revolving credit, maximum borrowing capacity |  |  | 925,000,000 |
Revolving credit, outstanding |  |  | $ 200,000,000 |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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