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Debt - Summary of Long-Term Debt (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |
Debt, gross | $ 10,307 | $ 9,308
Unamortized premium and debt issue cost, net | 82 | 60
Total debt | 10,389 | 9,368
Less: current maturities | (2,954) | (1,409)
Total long-term debt | $ 7,435 | 7,959
2019 Unsecured Term Loan | Term Loan |  |
Debt Instrument [Line Items] |  |
Maturity date | Feb. 28, 2020 |
Debt, gross | $ 700 | 0
2019 Unsecured Term Loan | Term Loan | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 3.39% |
Certificates | Secured Debt |  |
Debt Instrument [Line Items] |  |
Maturity dates range, start | Jan. 01, 2019 |
Maturity dates range, end | Dec. 31, 2027 |
Debt, gross | $ 2,276 | 1,837
Certificates | Secured Debt | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 3.20% |
Certificates | Secured Debt | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 8.02% |
Notes | Secured Debt |  |
Debt Instrument [Line Items] |  |
Maturity dates range, start | Jan. 01, 2019 |
Maturity dates range, end | Dec. 31, 2025 |
Debt, gross | $ 1,646 | 1,787
Notes | Secured Debt | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 2.91% |
Notes | Secured Debt | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 6.46% |
NYTDC Special Facilities Revenue Bonds, Series 2018 | Bonds |  |
Debt Instrument [Line Items] |  |
Maturity dates range, start | Jan. 01, 2022 |
Maturity dates range, end | Dec. 31, 2036 |
Debt, gross | $ 1,383 | 1,383
NYTDC Special Facilities Revenue Bonds, Series 2018 | Bonds | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 4.00% |
NYTDC Special Facilities Revenue Bonds, Series 2018 | Bonds | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 5.00% |
Unsecured notes | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Maturity dates range, start | Jan. 01, 2020 |
Maturity dates range, end | Dec. 31, 2028 |
Debt, gross | $ 4,050 | 4,050
Unsecured notes | Unsecured Debt | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 2.60% |
Unsecured notes | Unsecured Debt | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 4.38% |
Other financings | Secured and Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Maturity dates range, start | Jan. 01, 2019 |
Maturity dates range, end | Dec. 31, 2030 |
Debt, gross | $ 252 | 251
Other financings | Secured and Unsecured Debt | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 3.49% |
Other financings | Secured and Unsecured Debt | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate per annum (percent) | 8.75% |
2018 Unsecured Revolving Credit Facility | Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Maturity dates range, start | Jan. 01, 2021 |
Maturity dates range, end | Dec. 31, 2023 |
Debt, gross | $ 0 | 0
Other revolving credit facilities | Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Maturity dates range, start | Jan. 01, 2019 |
Maturity dates range, end | Dec. 31, 2021 |
Debt, gross | $ 0 | $ 0

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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=6879938&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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