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v3.20.4

Debt - Senior Notes (Details) - USD ($) |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 02, 2020 | Dec. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Nov. 17, 2020
Debt Instrument [Line Items] |  |  |  |  |  |
Percentage of contractual interest rate on notes |  | 4.875% | 4.875% |  |  |
Repayment of credit facility |  |  | $ 0 | $ 0 | $ 300,000,000 |
Net carrying amount of debt |  | $ 2,150,000,000 | $ 2,150,000,000 |  |  |
Senior Notes | 4.375% Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Percentage of contractual interest rate on notes |  | 4.375% | 4.375% |  |  |
Aggregate principal amount of notes outstanding | $ 800,000,000 |  |  |  |  |
Deferred issuance costs | 11,000,000 |  |  |  |  |
Net carrying amount of debt |  | $ 800,000,000 | $ 800,000,000 |  |  |
Senior Notes | 5.375% Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Percentage of contractual interest rate on notes |  | 5.375% | 5.375% |  |  |
Aggregate principal amount of notes outstanding |  | $ 700,000,000 | $ 700,000,000 |  |  |
Net carrying amount of debt |  | $ 700,000,000 | $ 700,000,000 |  |  |
Senior Notes | 3.875% Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Percentage of contractual interest rate on notes |  | 3.875% | 3.875% |  |  |
Net carrying amount of debt |  | $ 650,000,000 | $ 650,000,000 |  |  |
Senior Notes | 4.875% Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Percentage of contractual interest rate on notes |  | 4.875% | 4.875% |  |  |
Aggregate principal amount of notes outstanding |  | $ 330,000,000 | $ 330,000,000 |  |  |
Deferred issuance costs |  |  |  |  |  | $ 10,000,000
Settled percent |  | 100.00% |  |  |  |
Unpaid interest |  | $ 8,000,000 | 8,000,000 |  |  |
Unamortized issuance cost |  | $ 3,000,000 | $ 3,000,000 |  |  |
Convertible Debt | 4.375% Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayment of credit facility | $ 600,000,000 |  |  |  |  |
Convertible Debt | 4.875% Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Percentage of contractual interest rate on notes |  | 4.875% | 4.875% |  |  |

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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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