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Consolidating Financial Information - Narrative (Details) - Senior Notes | Mar. 31, 2018 USD ($)
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8.75% due 2020 |
Debt Instrument [Line Items] |
Debt instrument, face amount | $ 282,000,000
Interest rate, stated percentage | 8.75%
5.125% due 2023 |
Debt Instrument [Line Items] |
Debt instrument, face amount | $ 1,000,000,000
Interest rate, stated percentage | 5.125%
5% due 2026 |
Debt Instrument [Line Items] |
Debt instrument, face amount | $ 900,000,000
Interest rate, stated percentage | 5.00%
4.875% due 2027 |
Debt Instrument [Line Items] |
Debt instrument, face amount | $ 700,000,000
Interest rate, stated percentage | 4.875%

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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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