SENIOR NOTES PAYABLE AND OTHER DEBT - Summary of Senior Notes Payable and Other Debt (Details) £ in Millions, $ in Millions	Dec. 31, 2025 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 CAD ($)	Dec. 31, 2024 GBP (£)
Debt Instrument [Line Items]
Commercial paper notes	$ 0		$ 0
Long-term debt, gross	13,103,627,000		13,618,802,000
Deferred financing costs, net	(81,529,000)		(92,365,000)
Unamortized fair value adjustment	6,422,000		11,587,000
Unamortized discounts	(17,504,000)		(15,473,000)
Senior notes payable and other debt	13,011,016,000		13,522,551,000
Unsecured revolving credit facility | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, amount outstanding	0		6,397,000
3.50% Senior Notes due 2025
Debt Instrument [Line Items]
Senior notes	$ 0		600,000,000
Interest rate	3.50%
2.65% Senior Notes due 2025
Debt Instrument [Line Items]
Senior notes	$ 0		450,000,000
Interest rate	2.65%
4.125% Senior Notes due 2026
Debt Instrument [Line Items]
Senior notes	$ 500,000,000		500,000,000
Interest rate	4.125%
3.25% Senior Notes due 2026
Debt Instrument [Line Items]
Senior notes	$ 450,000,000		450,000,000
Interest rate	3.25%
3.75% Exchangeable Senior Notes due 2026
Debt Instrument [Line Items]
Senior notes	$ 862,500,000		862,500,000
Interest rate	3.75%
Unsecured term loan due February 2027
Debt Instrument [Line Items]
Unsecured debt	$ 200,000,000		200,000,000
Unsecured term loan due June 2027
Debt Instrument [Line Items]
Unsecured debt	$ 500,000,000		500,000,000
Interest rate	0.10%
2.45% Senior Notes, Series G Due 2027
Debt Instrument [Line Items]
Senior notes	$ 346,109,000		330,320,000
Interest rate	2.45%
3.85% Senior Notes due 2027
Debt Instrument [Line Items]
Senior notes	$ 400,000,000		400,000,000
Interest rate	3.85%
4.00% Senior Notes due 2028
Debt Instrument [Line Items]
Senior notes	$ 650,000,000		650,000,000
Interest rate	4.00%
5.398% Senior Notes, Series I due 2028
Debt Instrument [Line Items]
Senior notes	$ 437,190,000		417,246,000
Interest rate	5.398%
4.40% Senior Notes due 2029
Debt Instrument [Line Items]
Senior notes	$ 750,000,000		750,000,000
Interest rate	4.40%
5.100% Senior Notes, Series J due 2029
Debt Instrument [Line Items]
Senior notes	$ 473,623,000		452,017,000
Interest rate	5.10%
3.00% Senior Notes due 2030
Debt Instrument [Line Items]
Senior notes	$ 650,000,000		650,000,000
Interest rate	3.00%
4.75% Senior Notes due 2030
Debt Instrument [Line Items]
Senior notes	$ 500,000,000		500,000,000
Interest rate	4.75%
2.50% Senior Notes due 2031
Debt Instrument [Line Items]
Senior notes	$ 500,000,000		500,000,000
Interest rate	2.50%
2.50% Senior Notes, Series H Due 2031
Debt Instrument [Line Items]
Senior notes	$ 218,595,000		208,623,000
Interest rate	3.30%
5.63% Senior Notes due 2034
Debt Instrument [Line Items]
Senior notes	$ 500,000,000		500,000,000
Interest rate	5.625%
5.00% Senior Notes due 2035
Debt Instrument [Line Items]
Senior notes	$ 550,000,000		550,000,000
Interest rate	5.00%
6.90% Senior Notes due 2037
Debt Instrument [Line Items]
Senior notes	$ 52,400,000		52,400,000
Interest rate	6.90%
6.59% Senior Notes due 2038
Debt Instrument [Line Items]
Senior notes	$ 21,413,000		21,413,000
Interest rate	6.59%
5.70% Senior Notes due 2043
Debt Instrument [Line Items]
Senior notes	$ 300,000,000		300,000,000
Interest rate	5.70%
4.375% Senior Notes due 2045
Debt Instrument [Line Items]
Senior notes	$ 300,000,000		300,000,000
Interest rate	4.375%
4.875% Senior Notes due 2049
Debt Instrument [Line Items]
Senior notes	$ 300,000,000		300,000,000
Interest rate	4.875%
Mortgage loans and other
Debt Instrument [Line Items]
Long-term debt, gross	$ 2,641,797,000		3,167,886,000
5.10% Senior Notes due 2032
Debt Instrument [Line Items]
Senior notes	500,000,000	$ 500,000,000.0	0
Interest rate		5.10%
5.00% Senior Notes due 2036
Debt Instrument [Line Items]
Senior notes	$ 500,000,000.0		0
Interest rate	5.00%
Borrowings originally denominated in CAD | Unsecured revolving credit facility | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 0		1,400,000	$ 2.0
Borrowings originally denominated in GBP | Unsecured revolving credit facility | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross			$ 5,000,000		£ 4.0