INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2019

Intangible Assets [Abstract]

Disclosure of detailed information about intangible assets

Intangible assets by class	Useful life (in years)
Trademarks	Indefinite
Management contracts	40
Customer relationships	9
Other	4 to 7

The following table presents the components of the partnership’s intangible assets as of December 31, 2019 and December 31, 2018:

(US$ Millions)	Dec. 31, 2019			Dec. 31, 2018
Cost	$	1,265		$	1,273
Accumulated amortization	(55		)	(46		)
Accumulated impairment losses	(48		)	(48		)
Balance, end of year	$	1,162		$	1,179

The following table presents a roll forward of the partnership’s intangible assets December 31, 2019 and December 31, 2018:

(US$ Millions)	Dec. 31, 2019			Dec. 31, 2018
Balance, beginning of year	$	1,179		$	1,188
Acquisitions	9			67
Disposals	—			2
Amortization	(12		)	(17		)
Foreign currency translation	36			(58		)
Impact of deconsolidation due to loss of control and other(1)	(50		)	(3		)
Balance, end of year	$	1,162		$	1,179

⁽¹⁾  Includes the impact of deconsolidation of BSREP III investments. See Note 5, Investment Properties for further information.