RELATED PARTY TRANSACTIONS (Tables)

6 Months Ended

Jun. 30, 2018

Related Party [Abstract]

Disclosure of transactions between related parties

The following table summarizes other transactions the partnership has entered into with related parties:

	Three Months Ended				Six Months Ended
(US$ MILLIONS)	June 30, 2018		June 30, 2017		June 30, 2018		June 30, 2017
Transactions during the period
Construction revenues	$	122	$	83	$	224	$	161

(US$ MILLIONS)	June 30, 2018		December 31, 2017
Balances at end of period
Accounts receivable	$	53	$	64
Accounts payable and other	$	93	$	106