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Financing Arrangements and Long-Term Debt - Narrative (Details) - USD ($) | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Nov. 30, 2019 | Dec. 31, 2019 | Oct. 31, 2019 | Sep. 30, 2019 | Dec. 31, 2018
Line of Credit Facility [Line Items] |  |  |  |  |
Amount outstanding |  | $ 0 |  |  | $ 325,000,000
Cost of debt extinguishment |  | 32,100,000 |  |  |
Gain (loss) on extinguishment of debt |  | 26,600,000 |  |  |
Future maturities of long term debt in 2019 |  | 0 |  |  |
Future maturities of long term debt in 2020 |  | 0 |  |  |
Future maturities of long term debt in 2021 |  | 578,700,000 |  |  |
Future maturities of long term debt in 2022 |  | 0 |  |  |
Future maturities of long term debt in 2023 |  | 550,000,000.0 |  |  |
Thereafter |  | $ 1,700,000,000 |  |  |
Revolving Credit Facility |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Interest rate |  | 3.21% |  |  |
5.875% notes, due December 2027 |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Face amount of notes | $ 550,000,000 |  |  |  |
Transaction costs | $ 7,400,000 |  |  |  |
Interest rate | 5.875% |  |  |  | 5.875%
4.00% notes, due June 2022 |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Repayments of debt | $ 239,700,000 |  |  |  |
Interest rate | 4.00% |  |  |  | 4.00%
4.45% notes, due December 2022 ¹ |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Repayments of debt | $ 281,600,000 |  |  |  |
Interest rate | 4.45% |  | 3.70% |  | 4.45%
5.875% notes, due December 2042 ¹ |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 25.00% |  |  |
Interest rate |  |  |  |  | 5.875%
2018 Revolving Credit Facility |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Credit facility maximum borrowing capacity |  | $ 1,600,000,000 |  |  |
Amount outstanding |  | 0 |  |  |
2018 Revolving Credit Facility | Letter of Credit |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Amount outstanding |  | $ 3,700,000 |  |  |
New Term Credit Facility |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Credit facility maximum borrowing capacity |  |  |  | $ 500,000,000 |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: 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=6877327&loc=d3e13212-122682 Reference 2: 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=6876686&loc=d3e534808-122878 Reference 3: 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=6879938&loc=d3e572229-122910 + Details
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