Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

Additional Periods

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No definition available.

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- Definition

Debt Instrument, Term, Additional Period

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No definition available.

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SENIOR NOTES PAYABLE AND OTHER DEBT - Credit Facilities and Unsecured Term Loan (Details)	1 Months Ended	6 Months Ended
	Jul. 27, 2018 USD ($)	Jun. 30, 2018 USD ($) period	Apr. 30, 2018 USD ($)	Feb. 28, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt instruments
Unsecured revolving credit facility borrowings outstanding		$ 209,100,000
Senior notes payable and other debt, gross		10,504,977,000			$ 11,365,633,000
Senior notes payable and other debt		10,402,897,000			11,276,062,000
Unsecured Term Loan Due 2020
Debt instruments
Senior notes payable and other debt, gross		900,000,000			900,000,000
Secured Revolving Construction Credit Facility due 2022
Debt instruments
Unsecured revolving credit facility, maximum borrowing capacity		400,000,000.0
Revolving credit facility unused borrowing capacity		363,700,000
Senior notes payable and other debt, gross		36,337,000			2,868,000
4.00% Senior Notes due 2019
Debt instruments
Senior notes payable and other debt, gross			$ 97,900,000
2.00% Senior Notes due 2018
Debt instruments
Senior notes payable and other debt, gross		0			700,000,000
4.00% Senior Notes due 2028
Debt instruments
Senior notes payable and other debt, gross		650,000,000		$ 650,000,000.0	$ 0
Revolving Credit Facility
Debt instruments
Unsecured revolving credit facility, maximum borrowing capacity		$ 3,000,000,000.0
Additional periods \| period		2
Additional period term		6 months
Unsecured revolving credit facility borrowings outstanding		$ 302,800,000
Letters of credit outstanding		22,700,000
Revolving credit facility unused borrowing capacity		$ 2,700,000,000
Revolving Credit Facility \| LIBOR
Debt instruments
Variable interest rate		0.875%
Revolving Credit Facility \| Accordion Feature
Debt instruments
Unsecured revolving credit facility, maximum borrowing capacity		$ 3,750,000,000
Subsequent Event \| Accordion Feature
Debt instruments
Senior notes payable and other debt	$ 1,500,000,000
Subsequent Event \| Unsecured Term Loan Due 2020
Debt instruments
Senior notes payable and other debt, gross	$ 900,000,000.0
Subsequent Event \| Unsecured Term Loan Due 2020 \| LIBOR
Debt instruments
Variable interest rate	0.975%
Subsequent Event \| Unsecured Term Loan Due 2023
Debt instruments
Senior notes payable and other debt, gross	$ 300,000,000.0
Subsequent Event \| Unsecured Term Loan Due 2024
Debt instruments
Senior notes payable and other debt, gross	600,000,000.0
Subsequent Event \| Unsecured Term Loan Due Facility
Debt instruments
Senior notes payable and other debt, gross	$ 900,000,000.0
Subsequent Event \| Unsecured Term Loan Due Facility \| LIBOR
Debt instruments
Variable interest rate	0.90%