Consolidated Variable Interest Entities - Schedule of Variable Interest Entities (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Assets
Investment property, net	$ 13,987.5	$ 13,971.0
Cash, cash equivalents and restricted cash	68.7	90.4	$ 184.7	$ 78.2
Other intangible assets, net	385.4	402.0
Other assets, net	935.3	655.1
Total Assets	17,561.4	17,084.2
Liabilities and Other Equity
Secured debt	3,373.0	3,217.8
Advanced reservation deposits and rent	430.9	352.1
Accrued expenses and accounts payable	353.6	396.3
Other liabilities	958.3	935.9
Total Liabilities	9,474.8	8,992.8
Variable Interest Entity, Primary Beneficiary
Assets
Investment property, net	812.9	739.7
Cash, cash equivalents and restricted cash	17.0	14.1
Other intangible assets, net	12.4	13.0
Other assets, net	5.9	10.5
Total Assets	848.2	777.3
Liabilities and Other Equity
Secured debt	21.9	22.2
Unsecured debt	35.2	35.2
Advanced reservation deposits and rent	43.5	13.8
Accrued expenses and accounts payable	26.2	11.8
Other liabilities	1.2	1.4
Total Liabilities	128.0	84.4
Temporary equity	40.0	41.3
Total Liabilities and Other Equity	$ 168.0	$ 125.7