SEGMENT INFORMATION

Our operations are organized into four operating segments which are regularly reviewed by our CODM for the purpose of allocating resources to the segment and to assess its performance. The key measures used by the CODM in assessing performance and in making resource allocation decisions are funds from operations, which is calculated as net income excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, non-cash valuation gains or losses and other items (“Company FFO”), and Company FFO excluding the impact of realized disposition gains (losses), interest expense, current income taxes, and realized disposition gains, current income taxes and interest expense related to equity accounted investments (“Company EBITDA”).



	Year Ended December 31, 2019
	Total attributable to the partnership
(US$ MILLIONS)	Business services			Infrastructure services			Industrials			Corporate and other			Total
Revenues	$	28,822		$	4,559		$	9,651		$	—		$	43,032
Direct operating costs	(27,995		)	(3,231		)	(7,092		)	(9		)	(38,327		)
General and administrative expenses	(314		)	(133		)	(299		)	(86		)	(832		)
Equity accounted Company EBITDA ⁽¹⁾	38			109			94			—			241
Company EBITDA attributable to others ⁽²⁾	(330		)	(836		)	(1,735		)	—			(2,901		)
Company EBITDA ⁽³⁾	221			468			619			(95		)	1,213
Realized disposition gain (loss), net	528			(1		)	200			(1		)	726
Other income (expense), net ⁽⁴⁾	—			(27		)	2			—			(25		)
Interest income (expense), net	(189		)	(381		)	(741		)	37			(1,274		)
Realized disposition gain, current income taxes and interest expenses related to equity accounted investments ⁽¹⁾	(7		)	(15		)	(20		)	—			(42		)
Current income taxes	(91		)	(4		)	(251		)	22			(324		)
Company FFO attributable to others (net of Company EBITDA attributable to others) ⁽²⁾	(30		)	274			584			—			828
Company FFO ⁽³⁾	432			314			393			(37		)	1,102
Depreciation and amortization expense ⁽⁵⁾													(1,804		)
Impairment expense, net													(609		)
Other income (expense), net ⁽⁴⁾													(375		)
Deferred income taxes													132
Non-cash items attributable to equity accounted investments ⁽¹⁾													(85		)
Non-cash items attributable to others ⁽²⁾													1,727
Net income (loss) attributable to unitholders ⁽³⁾													$	88

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⁽¹⁾	The sum of these amounts equates to equity accounted income of $114 million as per the consolidated statements of operating results.


⁽²⁾	The sum of these amounts equates to net income attributable to others of $346 million as per the consolidated statements of operating results.


⁽³⁾	Company EBITDA, Company FFO and net income attributable to unitholders include Company EBITDA, Company FFO and net income attributable to limited partnership unitholders, general partnership unitholders, redemption-exchange unitholders, and special limited partnership unitholders.


⁽⁴⁾	The sum of these amounts equates to the other expense, net of $400 million as per the consolidated statements of operating results.


⁽⁵⁾	For the year ended December 31, 2019, depreciation and amortization by segment is as follows: infrastructure services $686 million, business services $305 million, industrials $813 million, and corporate and other $nil.



	Year Ended December 31, 2018
	Total attributable to the partnership
(US$ MILLIONS)	Business services			Infrastructure services			Industrials			Corporate and other			Total
Revenues	$	30,847		$	2,418		$	3,896		$	7		$	37,168
Direct operating costs	(30,351		)	(1,715		)	(2,060		)	(8		)	(34,134		)
General and administrative expenses	(278		)	(65		)	(231		)	(69		)	(643		)
Equity accounted Company EBITDA ⁽¹⁾	34			120			42			—			196
Company EBITDA attributable to others ⁽²⁾	(124		)	(463		)	(1,157		)	—			(1,744		)
Company EBITDA ⁽³⁾	128			295			490			(70		)	843
Realized disposition gain (loss), net⁽⁵⁾	55			—			195			—			250
Other income (expense), net	—			(15		)	(3		)	—			(18		)
Interest income (expense), net	(66		)	(176		)	(263		)	7			(498		)
Realized disposition gain, current income taxes and interest expenses related to equity accounted investments ⁽¹⁾	(3		)	(41		)	(10		)	—			(54		)
Current income taxes	(44		)	(10		)	(132		)	—			(186		)
Company FFO attributable to others (net of Company EBITDA attributable to others) ⁽²⁾	61			142			193			—			396
Company FFO ⁽³⁾	131			195			470			(63		)	733
Depreciation and amortization expense ⁽⁴⁾													(748		)
Gain on acquisition / disposition ⁽⁵⁾													250
Impairment expense, net													(218		)
Other income (expense), net													(118		)
Deferred income taxes													88
Non-cash items attributable to equity accounted investments ⁽¹⁾													(132		)
Non-cash items attributable to others ⁽²⁾													567
Net income (loss) attributable to unitholders ⁽³⁾													422

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⁽¹⁾	The sum of these amounts equates to equity accounted income of $10 million as per the consolidated statements of operating results.


⁽²⁾	The sum of these amounts equates to net income attributable to others of $781 million as per the consolidated statements of operating results.


⁽³⁾	Company EBITDA, Company FFO and net income attributable to unitholders include Company EBITDA, Company FFO and net income attributable to limited partnership unitholders, general partnership unitholders, redemption-exchange unitholders, and special limited partnership unitholders.


⁽⁴⁾	For the year ended December 31, 2018, depreciation and amortization by segment is as follows; infrastructure services $309 million, business services $135 million, industrials $304 million, corporate and other $nil.


⁽⁵⁾	The sum of these amounts equates to the gain on acquisitions/dispositions, net of $500 million as per the consolidated statements of operating results.



	Year Ended December 31, 2017
	Total attributable to the partnership
(US$ MILLIONS)	Business services			Infrastructure services			Industrials			Corporate and other			Total
Revenues	$	20,874		$	3		$	1,939		$	7		$	22,823
Direct operating costs	(20,448		)	—			(1,425		)	(3		)	(21,876		)
General and administrative expenses	(182		)	—			(113		)	(45		)	(340		)
Equity accounted Company EBITDA ⁽¹⁾	28			31			49			—			108
Company EBITDA attributable to others ⁽²⁾	(169		)	—			(306		)	—			(475		)
Company EBITDA ⁽³⁾	103			34			144			(41		)	240
Realized disposition gain/(loss), net⁽⁵⁾	19			—			225			—			244
Interest income (expense), net	(47		)	—			(154		)	(1		)	(202		)
Realized disposition gain, current income taxes and interest expenses related to equity accounted investments ⁽¹⁾	—			(13		)	(4		)	—			(17		)
Current income taxes	(16		)	—			(32		)	18			(30		)
Company FFO attributable to others (net of Company EBITDA attributable to others) ⁽²⁾	33			—			(16		)	—			17
Company FFO ⁽³⁾	92			21			163			(24		)	252
Depreciation and amortization expense ⁽⁴⁾													(371		)
Realized disposition gains recorded in fair value changes or prior periods ⁽⁵⁾													23
Impairment expense, net													(39		)
Other income (expense), net													(108		)
Deferred income taxes													22
Non-cash items attributable to equity accounted investments ⁽¹⁾													(22		)
Non-cash items attributable to others ⁽²⁾													267
Net income (loss) attributable to parent ⁽³⁾													$	24

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⁽¹⁾	The sum of these amounts equates to equity accounted income of $69 million as per the consolidated statements of operating results.


⁽²⁾	The sum of these amounts equates to net income attributable to others of $191 million as per the consolidated statements of operating results.


⁽³⁾	Company EBITDA, Company FFO and net income attributable to unitholders include Company EBITDA, Company FFO and net income attributable to limited partnership unitholders, general partnership unitholders, redemption-exchange unitholders, and special limited partnership unitholders.


⁽⁴⁾	For the year ended December 31, 2017, depreciation and amortization by segment is as follows: infrastructure services $nil, business services $99 million, industrials $272 million, and corporate and other $nil.


⁽⁵⁾	The sum of these amounts equates to the gain on acquisitions/dispositions, net of $267 million as per the consolidated statements of operating results.

Segment Assets

For the purpose of monitoring segment performance and allocating resources between segments, the CODM monitors the assets, including investments accounted for using the equity method, attributable to each segment.

The following is an analysis of the partnership's assets by reportable operating segment as at December 31, 2019 and 2018:



	As at December 31, 2019
	Total attributable to the partnership
(US$ MILLIONS)	Business services		Infrastructure services		Industrials		Corporate and other		Total
Total assets	$	18,132	$	10,619	$	22,742	$	258	$	51,751



	As at December 31, 2018
	Total attributable to the partnership
(US$ MILLIONS)	Business services		Infrastructure services		Industrials		Corporate and other		Total
Total assets	$	7,613	$	11,640	$	7,650	$	415	$	27,318

Geographic information

Revenues from external customers



(US$ MILLIONS)	2019		2018		2017
United Kingdom	$	20,202	$	21,983	$	13,637
United States of America	5,218		1,772		655
Europe	5,145		2,909		411
Australia	4,059		2,961		2,884
Canada	3,860		4,691		3,273
Other	2,050		969		711
Brazil	1,800		1,736		1,252
Mexico	698		147		—
Total revenues	$	43,032	$	37,168	$	22,823

The table below summarizes our segment revenue by geography for the year ended December 31, 2019:



Geography
(US$ MILLIONS)	Business services		Infrastructure services		Industrials		Corporate and other		Total ⁽¹⁾
United Kingdom	$	19,697	$	377	$	128	$	—	$	20,202
United States of America	324		1,609		3,285		—		5,218
Europe	687		1,569		2,889		—		5,145
Australia	4,042		17		—		—		4,059
Canada	2,990		117		753		—		3,860
Other	626		618		806		—		2,050
Brazil	456		247		1,097		—		1,800
Mexico	—		5		693		—		698
Total	$	28,822	$	4,559	$	9,651	$	—	$	43,032

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⁽¹⁾	Geography of the other non IFRS 15 revenue is as follows: United Kingdom $46 million, Canada $103 million, Australia $3 million, Brazil $201 million, United States of America $7 million, Europe $330 million and Other $34 million.

Non-current assets ⁽¹⁾



(US$ MILLIONS)	2019		2018
United Kingdom	$	2,182	$	2,032
United States of America	8,214		3,823
Europe	7,141		3,765
Australia	5,110		746
Canada	6,610		2,403
Other	2,588		416
Brazil	4,582		4,205
Mexico	2,529		147
Total non-current assets	$	38,956	$	17,537

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⁽¹⁾	Non-current assets are comprised of property, plant and equipment, intangible assets, equity accounted investments, goodwill and other non-current assets.