Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue
Total revenue	$ 540.0	$ 453.6	$ 454.0
Gain on sale of real estate, net	103.7	412.7	338.0
Income from unconsolidated investments
Principal co-investments	199.5	271.1	78.3
Performance allocations	(21.1)	117.9	2.7
Income from unconsolidated investments	178.4	389.0	81.0
Expenses
Share-based compensation	29.0	28.7	32.3
Performance allocation compensation	(4.3)	42.0	0.2
General and administrative	37.2	33.3	34.6
Depreciation and amortization	172.9	166.3	179.6
Total expenses	526.8	549.6	508.1
Interest expense	(220.8)	(192.4)	(201.9)
Gain (loss) on early extinguishment of debt	27.5	(45.7)	(9.3)
Other income (loss)	36.1	(5.0)	(2.3)
Income before provision for income taxes	138.1	462.6	151.4
Provision for income taxes	(36.2)	(126.2)	(43.6)
Net income	101.9	336.4	107.8
Net (income) loss attributable to the noncontrolling interests	(8.2)	(6.0)	2.3
Preferred dividends	(28.9)	(17.2)	(17.2)
Net income attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ 64.8	$ 313.2	$ 92.9
Basic Earnings per share
Income per basic (in dollars per share)	$ 0.47	$ 2.26	$ 0.66
Weighted average shares outstanding for basic (in shares)	136,900,875	138,552,058	139,741,411
Diluted Earnings per share
Income per diluted (in dollars per share)	$ 0.47	$ 2.24	$ 0.66
Weighted average shares outstanding for diluted (in shares)	138,567,534	140,132,435	140,347,365
Dividends declared per common share (in dollars per share)	$ 0.96	$ 0.90	$ 0.88
Rental
Revenue
Total revenue	$ 434.9	$ 390.5	$ 403.9
Expenses
Cost of goods sold	151.2	132.7	135.7
Hotel
Revenue
Total revenue	46.9	17.1	13.9
Expenses
Cost of goods sold	29.5	12.7	13.8
Investment management fees
Revenue
Total revenue	44.8	35.3	22.5
Property service fees
Revenue
Total revenue	1.7	2.1	10.6
Loans and other
Revenue
Total revenue	11.7	8.6	3.1
Compensation and related
Expenses
Cost of goods sold	$ 111.3	$ 133.9	$ 111.9