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Debt - Narrative (Details) € in Millions, $ in Millions	Jan. 02, 2026 USD ($)	Mar. 31, 2026 USD ($) note	Mar. 31, 2026 EUR (€) note	Dec. 31, 2025 USD ($)	Dec. 31, 2025 EUR (€)	Nov. 26, 2025 USD ($)	Jun. 17, 2025 USD ($)	Dec. 22, 2020 USD ($)
Debt Instrument [Line Items]
Deferred financing costs		$ 20		$ 21
Long-term debt, gross		6,289		6,140
Line of Credit
Debt Instrument [Line Items]
Long-term debt, gross		2,919		2,565
Secured Debt
Debt Instrument [Line Items]
Long-term debt, gross		315		476
Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross		1,750		$ 1,774
Loans Payable
Debt Instrument [Line Items]
Repayments of debt	$ 160
Credit Agreement \| Secured Debt
Debt Instrument [Line Items]
Long-term debt								$ 1,000
Credit Agreement \| Letter of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 100
5.25% Senior Notes Due July 2030 \| Senior Notes
Debt Instrument [Line Items]
Interest Rate		5.25%	5.25%	5.25%	5.25%
Issue price, percentage of face amount							0.98991
Unamortized discount (premium), net							$ 5
Deferred financing costs							$ 5
Maximum unencumbered assets to debt ratio				1.50	1.50
Long-term debt, gross		$ 500		$ 500
5.25% Senior Notes Due July 2030 \| Senior Notes \| Minimum
Debt Instrument [Line Items]
Maximum total indebtedness to total assets ratio							0.60
Maximum total secured indebtedness to total assets ratio							0.40
Minimum interest coverage ratio							1.50
5.25% Senior Notes Due July 2030 \| Senior Notes \| Maximum
Debt Instrument [Line Items]
Maximum total indebtedness to total assets ratio							1.00
Maximum total secured indebtedness to total assets ratio							1.00
Minimum interest coverage ratio							1.00
4.125% Senior Notes Due November 2031 \| Senior Notes
Debt Instrument [Line Items]
Interest Rate		4.125%	4.125%			4.125%
Issue price, percentage of face amount						0.99324
Unamortized discount (premium), net						$ 6
Deferred financing costs						$ 7
Long-term debt, gross \| €			€ 804		€ 823
MetLife Real Estate Lending, LLC, Notes Due 2026, 2028, and 2029 \| Loans Payable
Debt Instrument [Line Items]
Long-term debt, gross		$ 309		469
Number of notes outstanding \| note		2	2
Other Fixed-Rate Real Estate And Equipment Secured Financing Agreements \| Loans Payable
Debt Instrument [Line Items]
Long-term debt, gross		$ 6		7
Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Long-term debt, gross		1,919		1,565
Revolving Credit Facility \| Credit Agreement \| Line of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity								$ 3,500
Letters of credit, outstanding amount		$ 61		$ 61