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v3.20.2

Long-Term Debt and Commercial Paper (Narrative) (Details) - USD ($) | 6 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019 | May 21, 2020
Debt Instrument [Line Items] |  |  |  |
Payment of 5.5% Senior Notes due 2020 | $ 350,000,000.0 | $ 0 |  |
Letters of credit, amount outstanding | 39,700,000 |  |  |
Commercial paper, maximum aggregate amount outstanding permitted | 1,000,000,000.0 |  |  |
Commercial paper, amount outstanding | $ 0 |  | $ 170,000,000.0 |
Commercial Paper [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Weighted-average annual interest rate |  |  | 2.13% |
Maximum [Member] | Commercial Paper [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maturity period of debt | 397 days |  |  |
Weighted Average [Member] | Commercial Paper [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maturity period of debt |  |  | 12 days |
4.75% Senior Notes Due 2030 [Member] | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 500,000,000.0 |  | $ 0 | $ 500,000,000.0
Debt Instrument Percentage Aggregate Offering Price Percentage |  |  |  | 99.479%
Maturity date | Jun. 01, 2030 |  |  |
Percentage interest on debt instrument | 4.75% |  |  |
3.35% Senior Notes due 2021 [Member] | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 300,000,000.0 |  | 300,000,000.0 |
Maturity date | Jan. 15, 2021 |  |  |
Percentage interest on debt instrument | 3.35% |  |  |
3.5% Senior Notes Due 2024 [Member] | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 450,000,000.0 |  | 450,000,000.0 |
Maturity date | Nov. 15, 2024 |  |  |
Percentage interest on debt instrument | 3.50% |  |  |
4.5% Senior Notes due 2025 [Member] | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 450,000,000.0 |  | 450,000,000.0 |
Maturity date | Oct. 01, 2025 |  |  |
Percentage interest on debt instrument | 4.50% |  |  |
3.8% Senior Notes Due 2027 [Member] | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 300,000,000.0 |  | 300,000,000.0 |
Maturity date | Nov. 15, 2027 |  |  |
Percentage interest on debt instrument | 4.00% |  |  |
Revolving Credit Facility Due 2025 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity under revolving credit facility | $ 1,800,000,000 |  |  |
Additional borrowing capacity under accordion feature of revolving credit facility | 500,000,000.0 |  |  |
Revolving credit facility, amount outstanding | 0 |  | 0 |
Revolving credit facilities letter of credit sublimit | 200,000,000.0 |  |  |
Additional borrowing capacity under the revolving credit facility | 1,800,000,000 |  |  |
Borrowing capacity limited under the maximum consolidated leverage ratio | $ 1,300,000,000 |  |  |
Leverage ratio, minimum threshold, current credit spread | 2.0 |  |  |
Leverage ratio, maximum threshold, current credit spread | 3.25 |  |  |
Leverage ratio, minimum threshold, increase in credit spread | 3.25 |  |  |
Impact on credit spread from increase in leverage ratio | 0.125% |  |  |
Revolving Credit Facility Due 2025 [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Commitment fee on undrawn amounts (percent) | 0.125% |  |  |
Revolving Credit Facility Due 2025 [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Commitment fee on undrawn amounts (percent) | 0.20% |  |  |
Revolving Credit Facility Due 2025 [Member] | Line of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maturity date | Mar. 26, 2025 |  |  |
Revolving Credit Facility Due 2025 [Member] | Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rates (percent) | 1.125% |  |  |
Revolving Credit Facility Due 2025 [Member] | Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rates (percent) | 1.50% |  |  |
Revolving Credit Facility Due 2025 [Member] | Line of Credit [Member] | Base Rate [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rates (percent) | 0.125% |  |  |
Revolving Credit Facility Due 2025 [Member] | Line of Credit [Member] | Base Rate [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable interest rates (percent) | 0.50% |  |  |
5.5% Senior Notes Due 2020 [Member] | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Senior notes | $ 0 |  | 350,000,000.0 |
Payment of 5.5% Senior Notes due 2020 | $ 350,000,000.0 |  |  |
Maturity date | Feb. 01, 2020 |  |  |
Percentage interest on debt instrument | 5.50% |  |  |
Other Debt [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Finance leases included in long-term debt | $ 106,600,000 |  | $ 93,900,000 |

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- Definition The incremental increase (in basis points) in the credit spread on the revolver under the credit agreement if the leverage ratio is greater than a specified threshold. + References No definition available. + Details
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- Definition The minimum, inclusive, leverage ratio, as defined in the credit agreement, in which the credit spread on the revolver would increase based on the pricing terms outlined in the agreement. + References No definition available. + Details
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- Definition The maximum, exclusive, leverage ratio, as defined in the credit agreement, in which the current credit spread on the revolver applies based on pricing terms outlined in the credit agreement. + References No definition available. + Details
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- Definition Maximum amount of increase in the revolving credit facility allowed under the accordion feature of the credit agreement, subject to credit availability and certain other conditions. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: 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(13)(2)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 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(a)(16)) -URI http://asc.fasb.org/extlink&oid=119400593&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(19)(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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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=109500613&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=119400593&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=6877327&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=6876686&loc=d3e534808-122878 + Details
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