Franchising and Marketing Activities (Tables)

12 Months Ended

Dec. 31, 2022

Franchising and Marketing Activities [Abstract]

Schedule of the Number of Franchised and Company Owned Outlets in Operation [Table Text Block]

The number of franchised and company owned offices in operation are as follows:

	(Unaudited) As of December 31,
	2022	2021	2020
Franchised (domestic and international):
Century 21®	13,611	14,246	13,222
ERA®	2,407	2,355	2,318
Coldwell Banker®	2,100	2,071	2,263
Coldwell Banker Commercial®	171	164	168
Sotheby’s International Realty®	1,035	986	952
Better Homes and Gardens® Real Estate	418	411	389
Corcoran®	82	122	74
Total Franchised	19,824	20,355	19,386
Company owned:
Coldwell Banker®	606	605	605
Sotheby’s International Realty®	44	41	39
Corcoran®	29	29	29
Total Company Owned	679	675	673

Schedule of the Changes in the Number of Franchised and Company Owned Outlets [Table Text Block]

The number of franchised and company owned offices (in the aggregate) changed as follows:

	(Unaudited) For the Year Ended December 31,
	2022	2021	2020
Franchised (domestic and international):
Beginning balance	20,355	19,386	17,776
Additions	548	1,583	2,109
Terminations	(1,079)	(614)	(499)
Ending balance	19,824	20,355	19,386
Company owned:
Beginning balance	675	673	713
Additions	46	25	5
Closures	(42)	(23)	(45)
Ending balance	679	675	673