Brookfield Infrastructure Partners (BIP) 20-F 18 Mar 21 2020 FY Annual report (foreign) Financial data

Cover

Cover	12 Months Ended
	Dec. 31, 2020shares
Entity Information [Line Items]
Document Type	20-F
Document Registration Statement	false
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Document Shell Company Report	false
Entity File Number	001-33632
Entity Registrant Name	BROOKFIELD INFRASTRUCTURE PARTNERS L.P.
Entity Incorporation, State or Country Code	D0
Entity Address, Address Line One	73 Front Street
Entity Address, City or Town	Hamilton
Entity Address, Postal Zip Code	HM 12
Entity Address, Country	BM
Entity Common Stock, Shares Outstanding	295,429,987
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Accounting Standard	International Financial Reporting Standards
Entity Shell Company	false
Entity Central Index Key	0001406234
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Business Contact
Entity Information [Line Items]
Entity Address, Address Line One	73 Front Street
Entity Address, City or Town	Hamilton
Entity Address, Postal Zip Code	HM 12
Entity Address, Country	BM
Contact Personnel Name	Jane Sheere
City Area Code	441
Local Phone Number	294-3309
Contact Personnel Email Address	bip.enquiries@brookfield.com
Limited Partnership Units
Entity Information [Line Items]
Title of 12(b) Security	Limited Partnership Units
Trading Symbol	BIP; BIP UN
Security Exchange Name	NYSE
Class A Preferred Limited Partnership Units, Series 13
Entity Information [Line Items]
Title of 12(b) Security	Class A Preferred Limited Partnership Units, Series 13
Trading Symbol	BIP PR A
Security Exchange Name	NYSE
Class A Preferred Limited Partnership Units, Series 14
Entity Information [Line Items]
Title of 12(b) Security	Class A Preferred Limited Partnership Units, Series 14
Trading Symbol	BIP PR B
Security Exchange Name	NYSE

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	$ 867	$ 827
Financial assets	698	432
Accounts receivable and other	1,925	1,960
Inventory	221	242
Assets classified as held for sale	0	2,380
Current assets	3,711	5,841
Property, plant and equipment	31,584	23,013
Intangible assets	11,767	14,386
Investments in associates and joint ventures	5,528	4,967
Investment properties	518	416
Goodwill	6,634	6,553
Financial assets	709	763
Other assets	756	257
Deferred income tax asset	124	112
Total assets	61,331	56,308
Liabilities
Accounts payable and other	3,277	2,410
Non-recourse borrowings	1,551	1,381
Financial liabilities	696	329
Liabilities directly associated with assets classified as held for sale	0	1,319
Current liabilities	5,524	5,439
Corporate borrowings	3,158	2,475
Non-recourse borrowings	18,469	17,163
Financial liabilities	2,678	1,844
Other liabilities	5,197	2,570
Deferred income tax liability	4,612	4,620
Preferred shares	20	20
Total liabilities	39,658	34,131
Partnership capital
Limited partners	4,233	5,048
General partner	19	24
Non-controlling interest attributable to:
Redeemable Partnership Units held by Brookfield	1,687	2,039
BIPC exchangeable shares	638	0
Exchange LP Units	12	18
Interest of others in operating subsidiaries	13,954	14,113
Preferred unitholders	1,130	935
Total partnership capital	21,673	22,177
Total liabilities and partnership capital	$ 61,331	$ 56,308

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATING RESULTS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Entity Information [Line Items]
Revenues		$ 8,885	$ 6,597	$ 4,652
Direct operating costs		(4,843)	(3,395)	(2,208)
General and administrative expenses		(312)	(279)	(223)
Depreciation and amortization expense		(1,705)	(1,214)	(801)
Profit (loss) from operating activities		2,025	1,709	1,420
Interest expense		(1,179)	(904)	(555)
Share of earnings (losses) from investments in associates and joint ventures		131	224	(13)
Mark-to-market on hedging items		(16)	57	137
Gain on sale of associate		0	0	338
Other income (expense)		234	(158)	(157)
Income before income tax		1,195	928	1,170
Income tax expense
Current		(237)	(250)	(318)
Deferred		(54)	(28)	(46)
Net income		904	650	806
Attributable to:
Limited partners		141	52	192
General partner		183	159	137
Non-controlling interest attributable to:
Redeemable Partnership Units held by Brookfield		55	22	81
BIPC exchangeable shares		14	0	0
Exchange LP Units		1	0	0
Interest of others in operating subsidiaries		510	417	396
Limited Partners
Income tax expense
Net income		$ 141	$ 52	$ 192
Basic and diluted income per unit attributable to:
Limited partners (in dollars per unit)	[1]	$ 0.35	$ 0.06	$ 0.53
[1]	Basic and diluted income per limited partner unit for the years ended December 31, 2020, 2019, and 2018 have been restated to reflect the impact of the special distribution on March 31, 2020. Refer to Note 1, Organization and Description of the Business, for further details.

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of comprehensive income [abstract]
Net income	$ 904	$ 650	$ 806
Items that will not be reclassified subsequently to profit or loss:
Revaluation of property, plant and equipment	786	719	462
Marketable securities	59	47	(47)
Unrealized actuarial (losses) gains	(157)	(6)	28
Taxes on the above items	(188)	(148)	(100)
Share of income from investments in associates and joint ventures	98	108	117
Other comprehensive income that will not be reclassified to profit or loss, net of tax	598	720	460
Items that may be reclassified subsequently to profit or loss:
Foreign currency translation	(516)	64	(1,577)
Cash flow hedge	(104)	(33)	(71)
Net investment hedge	(12)	(113)	97
Taxes on the above items	63	6	3
Share of (losses) earnings from investments in associates and joint ventures	(91)	(54)	143
Other comprehensive income that will be reclassified to profit or loss, net of tax	(660)	(130)	(1,405)
Total other comprehensive (loss) income	(62)	590	(945)
Comprehensive income (loss)	842	1,240	(139)
Attributable to:
Limited partners	130	298	(13)
General partner	182	160	137
Non-controlling interest attributable to:
Redeemable Partnership Units held by Brookfield	48	125	(6)
BIPC exchangeable shares	101	0	0
Exchange LP Units	1	1	4
Interest of others in operating subsidiaries	$ 380	$ 656	$ (261)

CONSOLIDATED STATEMENTS OF PART

CONSOLIDATED STATEMENTS OF PARTNERSHIP CAPITAL - USD ($) $ in Millions		Total		Non-controlling interest— BIPC exchangeable shares	Non-controlling interest— Exchange LP Units		Non-controlling interest— in operating subsidiaries	Preferred Unitholders Capital		Limited Partners		Limited PartnersPartners' capital		Limited Partners(Deficit)		Limited PartnersOwnership Changes	Limited PartnersAccumulated Other Comprehensive Income		General partner		General partnerAccumulated Other Comprehensive Income	Non-Controlling Interest—Redeemable Partnership Units held by Brookfield		Non-Controlling Interest—Redeemable Partnership Units held by BrookfieldPartners' capital		Non-Controlling Interest—Redeemable Partnership Units held by Brookfield(Deficit)		Non-Controlling Interest—Redeemable Partnership Units held by BrookfieldOwnership Changes	Non-Controlling Interest—Redeemable Partnership Units held by BrookfieldAccumulated Other Comprehensive Income
Increase (Decrease) in Partners' Capital [Roll Forward]
Changes in accounting policies		$ 16					$ 10			$ 4				$ 4								$ 2				$ 2
Adjusted balances as		13,490			$ 0		5,885	$ 595		4,971		$ 4,907		(949)		$ 149	$ 864	[1]	$ 25			2,014		$ 2,078		(411)		$ (40)	$ 387
Balance as at Dec. 31, 2017		13,474			0		5,875	595		4,967		4,907		(953)		149	864	[1]	25			2,012		2,078		(413)		(40)	387
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income		806					396			192				192					137			81				81
Other comprehensive (loss) income		(945)			4		(657)			(205)							(205)	[1]				(87)							(87)
Comprehensive income (loss)		(139)			4		(261)			(13)				192			(205)	[1]	137			(6)				81			(87)
Unit issuance		588	[2]		232	[2]		342	[2]	14	[2]	14	[2]											0
Unit repurchases	[2]	(31)						(1)		(30)		(30)
Partnership distributions		(878)	[3]	$ 0	(2)	[3]				(520)	[3]			(520)	[3]				(140)	[3]		(216)	[3]			(216)	[3]
Partnership preferred distributions	[3]	(41)								(29)				(29)								(12)				(12)
Acquisition of subsidiaries		3,232					3,232
Subsidiary distributions to non-controlling interest		(676)					(676)
Capital provided to non-controlling interest		(877)					(877)
Other items	[1]	0			(163)		0			120		20		450		100	(450)					43				188		43	(188)
Balance as at Dec. 31, 2018		14,668			71		7,303	936		4,513		4,911		(856)		249	209	[1]	22		$ 3	1,823		2,078		(370)		3	112
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income		650					417			52				52					159			22				22
Other comprehensive (loss) income		590			1		239			246							246	[1]	1		1	103							103
Comprehensive income (loss)		1,240			1		656			298				52			246	[1]	160			125				22			103
Unit issuance	[2]	809			0			0		559		559										250		250
Unit repurchases	[2]	(29)						(1)		(28)		(28)
Partnership distributions		(978)	[3]	0	(4)	[3]				(575)	[3]			(575)	[3]				(158)	[3]		(241)	[3]			(241)	[3]
Partnership preferred distributions	[3]	(49)								(33)				(33)								(16)				(16)
Acquisition of subsidiaries	[4]	7,559					7,559
Subsidiary distributions to non-controlling interest		(1,216)					(1,216)
Preferred unit issuance		72
Other items	[1]	173			(50)		(189)			314		53		(18)		261	18					98				(8)		98	8
Balance as at Dec. 31, 2019		22,177		0	18		14,113	935		5,048		5,495		(1,430)		510	473	[1]	24		4	2,039		2,328		(613)		101	223
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income		904		14	1		510			141				141					183			55				55
Other comprehensive (loss) income		(62)		87	0		(130)			(11)							(11)	[1]	(1)		(1)	(7)							(7)
Comprehensive income (loss)		842		101	1		380			130				141			(11)	[1]	182			48				55			(7)
Unit issuance		9	[2]					195		9	[2]	9	[2]									0	[2]	0	[2]
Unit repurchases												0
Partnership distributions	[3]	(1,083)		(66)	(4)					(588)				(588)					(185)			(240)				(240)
Partnership preferred distributions	[3]	(51)		(3)						(35)				(35)								(13)				(13)
Acquisition of subsidiaries	[4]	1,880					1,880
Disposition of subsidiaries	[5]	(1,078)					(1,078)
Capital provided by non-controlling interest		63					63
Subsidiary distributions to non-controlling interest		(1,278)					(1,278)
Acquisition of non-controlling interest	[4]	(107)					(107)
Preferred unit issuance	[2]	195						195
Class A Shares of BIPC, Issuance, Value	[2],[6]	0		626						(441)				(398)		(61)	18	[1]	(2)			(183)				(174)		(14)	5
Other items	[1],[4]	104		(20)	(3)		(19)			110		22		25		91	(28)					36				10		38	(12)
Balance as at Dec. 31, 2020		$ 21,673		$ 638	$ 12		$ 13,954	$ 1,130		$ 4,233		$ 5,526		$ (2,285)		$ 540	$ 452	[1]	$ 19		$ 3	$ 1,687		$ 2,328		$ (975)		$ 125	$ 209
[1]	Refer to Note 27, Accumulated Other Comprehensive Income (Loss).
[2]	Refer to Note 26, Partnership Capital.
[3]	Refer to Note 28, Distributions.
[4]	Refer to Note 6, Acquisition of Businesses.
[5]	Refer to Note 5, Disposition of Businesses.
[6]	Refer to Note 1, Organization and Description of the Business.

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Activities
Net income		$ 904	$ 650	$ 806
Adjusted for the following items:
Earnings from investments in associates and joint ventures, net of distributions received		36	30	72
Depreciation and amortization expense		1,705	1,214	801
Mark-to-market on hedging items, provisions and other		51	153	99
Gain on sale of associate		0	0	(338)
Deferred income tax expense		54	28	46
Changes in non-cash working capital, net		(220)	68	(124)
Cash from operating activities		2,530	2,143	1,362
Investing Activities
Acquisition of subsidiaries, net of cash acquired		(3,405)	(10,271)	(5,825)
Disposal of subsidiaries and assets held for sale, net of cash disposed		745	272	0
Investments in associates and joint ventures		(369)	(539)	(61)
Disposal of investments in associates and joint ventures		0	135	1,289
Purchase of long lived assets		(1,472)	(1,182)	(839)
Disposal of long lived assets		46	38	23
Purchase of financial assets		(1,170)	(176)	(202)
Sale of financial assets and other		933	278	104
Net settlement of foreign exchange hedging items		83	73	(53)
Cash used by investing activities		(4,609)	(11,372)	(5,564)
Financing Activities
Distributions to general partner		(185)	(158)	(140)
Distributions to other unitholders		(949)	(869)	(779)
Subsidiary distributions to non-controlling interest		(1,278)	(1,216)	(676)
Capital provided by non-controlling interest		3,091	6,902	2,610
Capital provided to non-controlling interest		(828)	0	(877)
Disposal of partial interest to non-controlling interest, net of taxes.		168	165	0
Acquisition of partial interest from non-controlling interest		(150)	0	0
Deposit received from parent		545	0	0
Proceeds from corporate borrowings		657	376	377
Repayment of corporate borrowings		(339)	(288)	(94)
Proceeds from corporate credit facility		3,183	4,651	1,303
Repayment of corporate credit facility		(2,872)	(4,341)	(1,582)
Proceeds from non-recourse borrowings	[1]	5,196	8,625	5,601
Repayment of non-recourse borrowings		(4,077)	(5,052)	(1,650)
Lease liability repaid		(240)	(106)	0
Preferred units and preferred shares issued, net of repurchases		195	72	341
Partnership units issued, net of costs and repurchases		9	781	(16)
Cash from financing activities		2,126	9,542	4,418
Cash and cash equivalents
Change during the year		47	313	216
Impact of foreign exchange on cash		(7)	(13)	(50)
Cash reclassified as held for sale		0	(13)	0
Balance, beginning of year		827	540	374
Balance, end of year		$ 867	$ 827	$ 540
[1]	Includes proceeds from the settlement of cross-currency interest rate swaps at our Australian export terminal.

ORGANIZATION AND DESCRIPTION OF

ORGANIZATION AND DESCRIPTION OF THE BUSINESS	12 Months Ended
	Dec. 31, 2020
Corporate Information And Statement Of IFRS Compliance [Abstract]
ORGANIZATION AND DESCRIPTION OF THE BUSINESS	ORGANIZATION AND DESCRIPTION OF THE BUSINESS a) Brookfield Infrastructure Partners L.P. Brookfield Infrastructure Partners L.P. (our “partnership” and, together with its subsidiaries and operating entities, “Brookfield Infrastructure”) owns and operates utilities, transport, midstream and data businesses in North and South America, Europe and the Asia Pacific region. Our partnership was formed as a limited partnership established under the laws of Bermuda, pursuant to a limited partnership agreement dated May 17, 2007, as amended and restated. Our partnership is a subsidiary of Brookfield Asset Management Inc. (“Brookfield”). Our partnership’s units are listed on the New York Stock Exchange and the Toronto Stock Exchange under the symbols “BIP” and “BIP.UN”, respectively. Our cumulative Class A preferred limited partnership units, Series 1, Series 3, Series 5, Series 7, Series 9 and Series 11 are listed on the Toronto Stock Exchange under the symbols “BIP.PR.A”, “BIP.PR.B,” “BIP.PR.C,” “BIP.PR.D,” “BIP.PR.E” and “BIP.PR.F”, respectively. Our cumulative Class A preferred limited partnership units, Series 13 and Series 14, are listed on the New York Stock Exchange under the symbols “BIP.PR.A” and “BIP.PR.B,” respectively. Our partnership’s registered office is 73 Front Street, 5th Floor, Hamilton HM 12, Bermuda. In these notes to the consolidated financial statements, references to “units” are to the limited partnership units in our partnership other than the preferred units, references to our “preferred units” are to preferred limited partnership units in our partnership and references to our “unitholders” and “preferred unitholders” are to the holders of our units and preferred units, respectively. References to “Class A Preferred Units,” “Series 1 Preferred Units,” “Series 3 Preferred Units,” “Series 5 Preferred Units,” “Series 7 Preferred Units,” “Series 9 Preferred Units,” “Series 11 Preferred Units,” “Series 13 Preferred Units,” and “Series 14 Preferred Units” are to cumulative Class A preferred limited partnership units, cumulative Class A preferred limited partnership units, Series 1, cumulative Class A preferred limited partnership units, Series 3, cumulative Class A preferred limited partnership units, Series 5, cumulative Class A preferred limited partnership units, Series 7, cumulative Class A preferred limited partnership units, Series 9, cumulative Class A preferred limited partnership units, Series 11, cumulative Class A preferred limited partnership units, Series 13, and cumulative Class A preferred limited partnership units, Series 14, in our partnership, respectively. a) Brookfield Infrastructure Corporation On August 30, 2019, Brookfield Infrastructure Corporation (“BIPC”) was established by the partnership. On March 30, 2020, the partnership contributed our U.K. regulated distribution operation and Brazilian regulated gas transmission operation to BIPC. On March 31, 2020, the partnership completed a special distribution (the “special distribution”) whereby unitholders as of March 20, 2020 (the “Record Date”) received one class A exchangeable subordinate voting share (“BIPC exchangeable share”) for every nine units held. Immediately prior to the special distribution, the partnership received exchangeable shares through a distribution by Brookfield Infrastructure L.P. (“Holding LP”), or the Holding LP Distribution, of the BIPC exchangeable shares to all of its unitholders. As a result of the Holding LP Distribution, (i) Brookfield and its subsidiaries received approximately 13.7 million BIPC exchangeable shares and (ii) the partnership received approximately 32.6 million BIPC exchangeable shares, which it subsequently distributed to unitholders pursuant to the special distribution. Immediately following the special distribution, (i) holders of units held approximately 70.4% of the issued and outstanding BIPC exchangeable shares (ii) Brookfield and its affiliates held approximately 29.6% of the issued and outstanding BIPC exchangeable shares, and (iii) a subsidiary of the partnership owned all of the issued and outstanding class B multiple voting shares, or class B shares, which represent a 75.0% voting interest in BIPC, and all of the issued and outstanding class C non-voting shares, or class C shares, of BIPC, which entitle the partnership to the residual value in BIPC after payment in full of the amount due to holders of BIPC exchangeable shares and class B shares. The partnership directly and indirectly controlled BIPC prior to the special distribution and continues to control BIPC subsequent to the special distribution through its interests in the company. The BIPC exchangeable shares are listed on the New York Stock Exchange and the Toronto Stock Exchange under the symbol “BIPC”. i) BIPC exchangeable shares At any time, holders of BIPC exchangeable shares have the right to exchange all or a portion of their BIPC exchangeable shares for one unit per BIPC exchangeable share held or its cash equivalent based on the NYSE closing price of one unit on the date that the request for exchange is received, on a fixed-for-fixed basis. BIPC or the partnership, as applicable, has the ability to satisfy exchanges of BIPC exchangeable shares in units instead of cash. Additionally, the partnership has the ability to exchange all BIPC exchangeable shares for units at our election, on a fixed-for fixed basis. As a result of these characteristics, BIPC exchangeable shares have been classified as non-controlling interests in the interim condensed and consolidated financial statements of our partnership. ii) Basic and diluted income per unit: The special distribution resulted in the issuance of approximately 46.3 million exchangeable shares.

SUBSIDIARIES

SUBSIDIARIES	12 Months Ended
	Dec. 31, 2020
Interests In Other Entities [Abstract]
SUBSIDIARIES	SUBSIDIARIES The following provides information about our partnership’s wholly-owned subsidiaries as of December 31, 2020 and 2019: Ownership Country of Defined Name Name of entity 2020 2019 Transport Australian rail operation Arc Infrastructure Holdings No. 1 Pty Ltd Australia 100 100 The following table presents details of non-wholly owned subsidiaries of our partnership: Country of Effective Ownership Voting Defined Name Name of entity 2020 2019 2020 2019 Utilities U.K. regulated distribution operation BUUK Infrastructure No 1 Limited U.K. 80 80 80 80 Canadian district energy operation Enwave Energy Corporation (1) Canada 25 25 100 100 U.S. district energy operation Enwave USA (1) U.S. 40 40 100 100 Colombian regulated distribution operation Empresa de Energia de Boyaca S.A. (1),(3) Colombia — 17 — 100 Brazilian regulated gas transmission operation Nova Transportadora do Sudeste S.A. (1) Brazil 28 28 90 90 Colombian natural gas distribution operation Vanti S.A. ESP (1),(2) Colombia 21 16 75 55 Brazilian electricity transmission operation Odoya Transmissora de Energia S.A. & Esperanza Transmissora de Energia S.A. (1),(2) Brazil 31 31 100 100 North American residential energy infrastructure operation Enercare Inc. (1) Canada 30 30 100 100 Indian gas transmission operation Pipeline Infrastructure Pvt. Ltd. (1),(2) India 24 24 83 83 Transport Australian export terminal DBCT Management Pty Ltd (4) Australia — 71 — 100 North American rail operation Genesee & Wyoming Inc. (1),(2) U.S. 9 9 72 72 U.K. ports operation Brookfield Port Acquisitions (UK) Limited (1) U.K. 59 59 100 100 Australian port operation Linx Cargo Care Group Pty Ltd (1) Australia 27 27 67 67 Chilean toll roads Sociedad Concesionaria Vespucio Norte Express S.A. (1),(3) Chile 17 34 60 60 Indian toll roads BIF India Holdings Pte Ltd (1) Singapore 40 40 93 93 Peruvian toll roads Rutas de Lima S.A.C (1) Peru 17 17 57 57 Indian toll roads Simhapuri Expressway Limited (1) India 29 29 93 93 Indian toll roads Rayalseema Expressway Private Limited (1) India 26 26 84 84 Midstream North American gas storage operation Warwick Gas Storage L.P. (1) Canada 25 25 100 100 North American gas storage operation Lodi Gas Storage LLC (1) U.S. 40 40 100 100 North American gas storage operation Rockpoint Gas Storage Partners L.P. (1) U.S. 40 40 100 100 Western Canadian natural gas gathering and processing operation NorthRiver Midstream Inc. (1),(2) Canada 29 29 100 100 Data U.S. data center operation Dawn Acquisitions LLC (1) U.S. 29 29 100 100 Australian data center operation Ruby Pooling Hold Trust (1),(2) Australia 29 29 100 100 Indian telecom towers operation Summit Digitel Infrastructure Private Limited (1),(2) India 17 — 62 — U.K. telecom towers operation WIG Holdings I Limited (1),(2) U.K. 25 25 100 100 Corporate Holding LP Brookfield Infrastructure L.P. Bermuda 70 70 100 100 (1) For the above noted subsidiaries, our partnership has entered into voting arrangements to provide our partnership with the ability to direct the relevant activities of the investee. Our partnership controls these investees given that our partnership is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Our partnership exercises judgment to determine the level of variability that will achieve control over an investee, particularly in circumstances where our partnership’s voting interest differs from its ownership interest in an investee. The following were considered to determine whether our partnership controls these investees: the degree of power (if any) held by other investors, the degree of exposure to variability of each investor, the determination of whether any general partner removal rights are substantive and the purpose and design of the investee. (2) See Note 6, Acquisition of Businesses, for further details. (3) See Note 5, Disposition of Businesses, for further details. (4) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian regulated terminal operation. Upon partial disposition, the operation ceased to meet the definition of a non-wholly owned subsidiary. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details.

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2020
Corporate Information And Statement Of IFRS Compliance [Abstract]
SIGNIFICANT ACCOUNTING POLICIES	SIGNIFICANT ACCOUNTING POLICIES (a) Statement of Compliance These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS”). The consolidated financial statements were authorized for issue by the Board of Directors on March 18, 2021. (b) Basis of Preparation The consolidated financial statements are prepared on a going concern basis. (i) Subsidiaries These consolidated financial statements include the accounts of our partnership and subsidiaries over which our partnership has control. Subsidiaries are consolidated from the date of acquisition, being the date on which our partnership obtains control, and continue to be consolidated until the date when control is lost. Our partnership (investor) controls an investee when it is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Together, our partnership and its subsidiaries are referred to as “Brookfield Infrastructure” in these financial statements. Non-controlling interests may be initially measured either at fair value or at the non-controlling interests’ proportionate share of the fair value of the acquiree’s identifiable net assets. The choice of measurement basis is made on an acquisition by acquisition basis. Subsequent to acquisition, the carrying amount of non-controlling interests is the amount of those interests at initial recognition plus the non-controlling interests’ share of subsequent changes in partnership capital in addition to changes in ownership interests. Total comprehensive income is attributed to non-controlling interests, even if this results in the non-controlling interests having a deficit balance. Holding LP has issued Redeemable Partnership Units held by Brookfield, which may, at the request of the holder, require the Holding LP to redeem the Redeemable Partnership Units for cash consideration equal to the market price of our partnership’s units. This right is subject to our partnership’s right of first refusal which entitles it, at its sole discretion, to elect to acquire any Redeemable Partnership Unit so presented to Holding LP in exchange for one of our partnership’s units subject to certain customary adjustments. All intercompany balances, transactions, revenues and expenses are eliminated in full. (ii) Associates and Joint Ventures Associates and joint ventures are entities over which our partnership has significant influence or joint control. Significant influence is the power to participate in the financial and operating policy decisions of the investee but does not constitute control. Our partnership accounts for investments over which it has significant influence using the equity method, and are recorded as Investments in associates and joint ventures on the Consolidated Statements of Financial Position. Interests in investments accounted for using the equity method are initially recorded at cost. If the cost of the associate is lower than the proportionate share of the investment’s underlying fair value, our partnership records a gain on the difference between the cost and the underlying fair values of the identifiable net assets of the associate. If the cost of the associate is greater than our partnership’s proportionate share of the underlying fair value, goodwill and other adjustments arising from the purchase price allocation relating to the associate is included in the carrying amount of the investment. Subsequent to initial recognition, the carrying value of our partnership’s interest in an investee is adjusted for our partnership’s share of comprehensive income or loss and distributions from the investee. Profits or losses resulting from transactions with an associate are recognized in the consolidated financial statements based on the interests of unrelated investors in the associate. (c) Foreign Currency Translation The U.S. dollar is the functional and presentation currency of Brookfield Infrastructure. Each of Brookfield Infrastructure’s subsidiaries, associates and jointly controlled entities determines its own functional currency and items included in the financial statements of each subsidiary and associate are measured using that functional currency. Assets and liabilities of foreign operations having a functional currency other than the U.S. dollar are translated at the rate of exchange prevailing at the reporting date and revenues and expenses at average rates during the period. Gains or losses on translation are included as a component of other comprehensive income. On disposal of a foreign operation resulting in the loss of control, the component of other comprehensive income due to accumulated foreign currency translation relating to that foreign operation is reclassified to net income. Gains or losses on foreign currency denominated balances and transactions that are designated as hedges of net investments in these operations are reported in the same manner. On partial disposal of a foreign operation in which control is retained, the proportionate share of the component of other comprehensive income or loss relating to that foreign operation is reclassified to non-controlling interests in that foreign operation. Foreign currency denominated monetary assets and liabilities are translated using the rate of exchange prevailing at the reporting date and non-monetary assets and liabilities measured at fair value are translated at the rate of exchange prevailing at the date when the fair value was determined. Revenues and expenses are measured at average rates during the period. Gains or losses on translation of these items are included in net income. Gains and losses on transactions which hedge these items are also included in net income or loss. Foreign currency denominated non-monetary assets and liabilities, measured at historic cost, are translated at the rate of exchange at the transaction date. (d) Business Combinations Business acquisitions in which control is acquired are accounted for using the acquisition method, other than those between and among entities under common control. The consideration of each acquisition is measured at the aggregate of the fair values at the acquisition date of assets transferred by the acquirer, liabilities incurred or assumed, and equity instruments issued by Brookfield Infrastructure in exchange for control of the acquiree. Acquisition related costs are recognized in the Consolidated Statement of Operating Results as incurred and included in other expenses. Where applicable, the consideration for the acquisition includes any asset or liability resulting from a contingent consideration arrangement, measured at its acquisition-date fair value. Subsequent changes in fair values are adjusted against the cost of the acquisition where they qualify as measurement period adjustments. All other subsequent changes in the fair value of contingent consideration classified as liabilities will be recognized in the Consolidated Statements of Operating Results, whereas changes in the fair values of contingent consideration classified within partnership capital are not subsequently re-measured. Where a business combination is achieved in stages, Brookfield Infrastructure’s previously held interests in the acquired entity are remeasured to fair value at the acquisition date, that is, the date Brookfield Infrastructure attains control and the resulting gain or loss, if any, is recognized in the Consolidated Statements of Operating Results. Amounts arising from interests in the acquiree prior to the acquisition date that have previously been recognized in other comprehensive income are reclassified to the Consolidated Statements of Operating Results, where such treatment would be appropriate if that interest were disposed of. If the initial accounting for a business combination is incomplete by the end of the reporting period in which the combination occurs, Brookfield Infrastructure reports provisional amounts for the items for which the accounting is incomplete. Those provisional amounts are adjusted during the measurement period, or additional assets or liabilities are recognized, to reflect new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the amounts recognized as of that date. The measurement period is the period from the date of acquisition to the date Brookfield Infrastructure obtains complete information about facts and circumstances that existed as of the acquisition date. The measurement period is subject to a maximum of one year subsequent to the acquisition date. If, after reassessment, Brookfield Infrastructure’s interest in the fair value of the acquiree’s identifiable net assets exceeds the sum of the consideration transferred, the amount of any non-controlling interests in the acquiree and the fair value of the acquirer’s previously held equity interest in the acquiree if any, the excess is recognized immediately in profit or loss as a bargain purchase gain. Contingent liabilities acquired in a business combination are initially measured at fair value at the date of acquisition. At the end of subsequent reporting periods, such contingent liabilities are measured at the higher of the amount that would be recognized in accordance with IAS 37 , Provisions, Contingent Liabilities and Contingent Assets (“IAS 37”) and the amount initially recognized less cumulative amount of income recognized in accordance with IFRS 15, Revenue from Contracts with Customers . (e) Cash and Cash Equivalents Cash and cash equivalents include cash on hand and short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value. (f) Accounts Receivable Trade receivables are recognized initially at their transaction price and subsequently measured at amortized cost using the effective interest method, less any allowance for expected credit losses. (g) Property, Plant and Equipment Brookfield Infrastructure uses the revaluation method of accounting for all classes of property, plant and equipment. Property, plant and equipment is initially measured at cost and subsequently carried at its revalued amount, being the fair value at the date of the revaluation less any subsequent accumulated depreciation and any accumulated impairment losses. Revaluations are made on at least an annual basis, and on a sufficient basis to ensure that the carrying amount does not differ significantly from fair value. Where the carrying amount of an asset is increased as a result of a revaluation, the increase is recognized in other comprehensive income or loss and accumulated in equity within the revaluation surplus reserve, unless the increase reverses a previously recognized impairment recorded through net income, in which case that portion of the increase is recognized in net income. Where the carrying amount of an asset is decreased, the decrease is recognized in other comprehensive income to the extent of any balance existing in revaluation surplus in respect of the asset, with the remainder of the decrease recognized in net income. Revaluation gains are included in other comprehensive income, but are not subsequently recycled into profit or loss. An item of property, plant and equipment and any significant part initially recognized is derecognized upon disposal or when no future economic benefits are expected from its use or disposal. The gain or loss arising on disposal or retirement of an item of property, plant and equipment is determined as the difference between the sales proceeds and the carrying amount of the asset and is recognized in the Consolidated Statements of Operating Results. However, any balance accumulated in revaluation surplus is subsequently recorded in retained earnings when an asset is derecognized and not transferred to profit or loss. Depreciation of an asset commences when it is available for use. Property, plant and equipment are depreciated on a straight-line or declining-balance basis over the estimated useful lives of each component of the assets as follows: Buildings Up to 75 years Transmission stations, towers and related fixtures Up to 40 years Leasehold improvements Up to 50 years Plant and equipment Up to 40 years Network systems Up to 65 years Track Up to 40 years District energy systems Up to 50 years Pipelines Up to 20 years Gas storage assets Up to 50 years Depreciation on property, plant and equipment is calculated on a straight-line or declining-balance basis so as to depreciate the net cost of each asset over its expected useful life to its estimated residual value. Leasehold improvements are depreciated over the period of the lease or estimated useful life, whichever is the shorter, using the straight-line method. The estimated useful lives, residual values and depreciation methods are reviewed at the end of each annual reporting period, with the effect of any changes recognized on a prospective basis. (h) Investment Property Brookfield Infrastructure uses the fair value method to account for assets classified as investment property. An asset is determined to be an investment property when it is principally held to earn rental income or for capital appreciation, or both. Investment property is initially measured at cost including transaction costs. Subsequent to initial recognition, investment properties are carried at fair value. Gains or losses arising from changes in fair value are included in profit or loss. Fair values are primarily determined by valuation of the lease term and freehold reversion. An income capitalization approach is used by applying a yield to the rental income of the capitalization rate that is reflective of the characteristics, location and market of each property. Fair value is estimated by management of our partnership with due consideration given to observable market inputs, where available. (i) Asset Impairment At each reporting date Brookfield Infrastructure assesses whether for assets, other than those measured at fair value with changes in values recorded in profit or loss, there is any indication that such assets are impaired. This assessment includes a review of internal and external factors which includes, but is not limited to, changes in the technological, political, economic or legal environment in which the entity operates in, structural changes in the industry, changes in the level of demand, physical damage and obsolescence due to technological changes. An impairment is recognized if the recoverable amount, determined as the higher of the estimated fair value less costs of disposal or the discounted future cash flows generated from use and eventual disposal from an asset or cash generating unit is less than its carrying value. The projections of future cash flows take into account the relevant operating plans and management’s best estimate of the most probable set of conditions anticipated to prevail. Where an impairment loss subsequently reverses, the carrying amount of the asset or cash generating unit is increased to the lesser of the revised estimate of recoverable amount and the carrying amount that would have been recorded had no impairment loss been recognized previously. (j) Intangible Assets Intangible assets acquired in a business combination and recognized separately from goodwill are initially recognized at their fair value at the acquisition date. Brookfield Infrastructure’s intangible assets are comprised primarily of conservancy rights, service concession arrangements, customer order backlogs, track access rights, operating network agreements and customer contracts and relationships. Subsequent to initial recognition, intangible assets acquired in a business combination are reported at cost less accumulated amortization unless indefinite-lived and accumulated impairment losses, on the same basis as intangible assets acquired separately. Public service concessions that provide Brookfield Infrastructure the right to charge users for a service in which the service and fee is regulated by the grantor are accounted for as an intangible asset under IFRIC 12, Service Concession Arrangements . Concession arrangements were acquired as part of the acquisition of the Brazilian regulated gas transmission operation, Brazilian electricity transmission operation and Chilean, Indian and Peruvian toll roads and were initially recognized at their fair values. The intangible assets at the Brazilian regulated gas transmission operation and Brazilian electricity transmission operation relate to concession contracts, and are amortized on a straight-line basis over the life of the contractual arrangement. The intangible assets at the Chilean, Indian and Peruvian toll roads relate to the right to operate a road and charge users a specified tariff for a contractual length of time and is amortized over the life of the contractual arrangement with an average of 13, 16, and 22 years remaining, respectively. Gains or losses arising from derecognition of an intangible asset are measured as the difference between the net disposal proceeds and the carrying amount of the asset and are recognized in profit or loss when the asset is derecognized. See Note 14, Intangible Assets , for additional information. (k) Goodwill Goodwill represents the excess of the price paid for the acquisition of an entity over the fair value of the net tangible and intangible assets and liabilities acquired. Goodwill is allocated to the cash generating unit or units to which it relates. Brookfield Infrastructure identifies cash generating units as identifiable groups of assets that are largely independent of the cash inflows from other assets or groups of assets. Goodwill is evaluated for impairment annually or more often if events or circumstances indicate there may be impairment. Impairment is determined for goodwill by assessing if the carrying value of a cash generating unit, including the allocated goodwill, exceeds its recoverable amount determined as the greater of the estimated fair value less costs of disposal or the value in use. Impairment losses recognized in respect of a cash generating unit are first allocated to the carrying value of goodwill and any excess is allocated to the carrying amount of assets in the cash generating unit. Any goodwill impairment is charged to profit or loss in the period in which the impairment is identified. Impairment losses on goodwill are not subsequently reversed. In the year of a business acquisition, the recoverability of the acquired goodwill is assessed by revisiting the assumptions of the related underwriting model. On disposal of a subsidiary, the attributable amount of goodwill is included in the determination of the gain or loss on disposal of the operation. (l) Revenue Recognition Our partnership recognizes revenue when it transfers control of a product or service to a customer. Revenue is measured based on the consideration specified in a contract with a customer and excludes amounts collected on behalf of third parties. Brookfield Infrastructure recognizes revenue when the specific criteria have also been met for each of Brookfield Infrastructure’s activities as described below. Cash received by Brookfield Infrastructure from customers is recorded as deferred revenue until revenue recognition criteria are met. Utilities Revenue from utilities infrastructure is derived from the transmission of energy and natural gas, and from our commercial and residential distribution operations. Distribution and transmission revenue each contain a single performance obligation that is recognized over time. The connection revenue relating to Brookfield Infrastructure’s U.K. regulated distribution operation contains a distinct performance obligation that is recognized over the period that the connection is constructed, based on an input method of progress recognition on the basis that this methodology is most reflective of the underlying transfer of control. Performance obligations relating to commercial and residential distribution operations are satisfied over time as the services are rendered or upon commencement of a finance lease agreement. The sale of district energy solutions to customers contains a distinct performance obligation and revenue is recognized when installation is completed. The payment terms for all of our businesses in the utilities segment require payment upon completion, except for connections income whereby payment is typically collected up-front prior to the completion of any services. Transport Revenue from transport infrastructure consists primarily of freight, toll road operations, transportation services revenue, and from our Australian export terminal. These services consist of a single performance obligation and revenue is recognized over time when services are rendered, based primarily on usage or volume during the period. Terminal infrastructure revenue contains both a capacity charge and a handling charge associated with operating the terminal. The terminal infrastructure service contracts contain a performance obligation recognized over time pertaining to capacity for the period the services are provided and for handling services based on tons of coal shipped through the terminal when service is provided. The payment terms for all of our businesses in the transport segment require payment upon completion of the underlying transportation service. Midstream Revenue from midstream infrastructure consists primarily of midstream and storage services. Natural gas midstream services revenue consists of a single performance obligation and is recognized over time as services are rendered, based primarily on volume throughput or contracted capacity. Gas storage revenues contain both a capacity charge and a variable charge, however the associated services are highly interdependent and represent a single performance obligation that is satisfied over time as the services are provided. The payment terms for all of our businesses in the midstream segment require payment upon completion of the underlying service within a given period. Data Revenues from data transmission and distribution operations are derived from contracts with media broadcasting and telecom customers to access infrastructure, and revenue from data storage operations are generated from providing data storage services to enterprise customers. These contracts consist of performance obligations that are satisfied over time in accordance with the underlying agreements. The payment terms require upfront and recurring payments to utilize space on towers to host the customers’ equipment at our data transmission and distribution operations, and to receive colocation services, mainly leased space and power, at our data storage operations. The differing payment terms do not constitute separate performance obligations as revenue is recognized over time for the period the services are provided. (m) Financial Instruments and Hedge Accounting (i) Financial Instrument Classification Our partnership classifies cash and cash equivalents and accounts receivable and other as amortized cost. Additionally, our partnership maintains a portfolio of marketable securities comprised of liquid equity and debt securities. The marketable securities are classified either as fair value through other comprehensive income (“FVTOCI”) or fair value through profit or loss (“FVTPL”). Derivative assets are classified as FVTPL, except for derivatives in certain hedging relationships. Other financial assets are classified as either amortized cost or FVTOCI. Financial assets classified as FVTPL or FVTOCI are subsequently measured at fair value at each reporting date. For financial assets classified as FVTPL, the change in fair value is recorded through profit or loss. For financial assets classified as FVTOCI, the change in fair value is recorded in other comprehensive income. The cumulative gains or losses related to FVTOCI equity instruments are not reclassified to profit or loss on disposal, whereas the cumulative gains or losses on all other FVTOCI assets are reclassified to profit or loss on disposal. For financial instruments at amortized cost or debt instruments at FVTOCI, the partnership assesses if there have been significant increases in credit risk since initial recognition to determine whether lifetime or 12-month expected credit losses should be recognized. Any related loss allowances are recorded through profit or loss. Borrowings, accounts payable and other, and preferred shares are classified as amortized cost, except for derivatives embedded in related financial instruments. Embedded derivatives and any other derivative liabilities are classified as FVTPL and are subsequently measured at fair value, except for derivatives in certain hedging relationships. Other financial liabilities are classified as either FVTPL or amortized cost. (ii) Hedge Accounting Brookfield Infrastructure selectively utilizes derivative financial instruments primarily to manage financial risks, including interest rate and foreign exchange risks. Derivative financial instruments are recorded at fair value. Hedge accounting is applied when the derivative is designated as a hedge of a specific exposure and that the hedging relationship meets all of the hedge effectiveness requirements. Hedge accounting is discontinued prospectively when the derivative no longer qualifies as a hedge or the hedging relationship is terminated. Once discontinued, the cumulative change in fair value of a derivative that was previously recorded in other comprehensive income by the application of hedge accounting is recognized in profit or loss over the remaining term of the original hedging relationship as amounts related to the hedged item are recognized in profit or loss. The assets or liabilities relating to unrealized mark-to-market gains and losses on derivative financial instruments are recorded in financial assets and financial liabilities, respectively. Realized and unrealized gains and losses on foreign exchange contracts, designated as hedges of currency risks relating to a net investment in a subsidiary with a functional currency other than the U.S. dollar are included in equity and are included in net income in the period in which the subsidiary is disposed of or to the extent partially disposed and control is not retained. Derivative financial instruments that are designated as hedges to offset corresponding changes in the fair value of assets and liabilities and cash flows are measured at estimated fair value with changes in fair value recorded in profit or loss or as a component of equity as applicable. Unrealized gains and losses on interest rate contracts designated as hedges of future variable interest payments are included in equity as a cash flow hedge when the interest rate risk relates to an anticipated variable interest payment. The periodic exchanges of payments on interest rate swap contracts designated as hedges of debt are recorded on an accrual basis as an adjustment to interest expense. (n) Income Taxes Income tax expense represents the sum of the tax accrued in the period and deferred income tax. (i) Current income tax Current income tax assets and liabilities are measured at the amount expected to be paid to tax authorities, net of recoveries based on the tax rates and laws enacted or substantively enacted at the reporting date. Current income tax relating to items recognized directly in partnership capital and other comprehensive income are also recognized directly in partnership capital and other comprehensive income, respectively. (ii) Deferred income tax Deferred income tax liabilities are provided for using the liability method on temporary differences between the tax bases used in the computation of taxable income and carrying amounts of assets and liabilities in the consolidated financial statements. Deferred income tax assets are recognized for all deductible temporary differences, carry forward of unused tax credits and unused tax losses, to the extent that it is probable that deductions, tax credits and tax losses can be utilized. Such deferred income tax assets and liabilities are not recognized if the temporary difference arises from goodwill or from the initial recognition of other assets and liabilities in a transaction that affects neither the taxable income nor the accounting income, other than in a business combination. The carrying amount of deferred income tax assets are reviewed at each reporting date and reduced to the extent it is no longer probable that the income tax asset will be recovered. Deferred income tax liabilities are recognized for taxable temporary differences associated with investments in subsidiaries and associates, and interests in joint ventures, except where Brookfield Infrastructure is able to control the reversal of the temporary difference and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets arising from deductible temporary differences associated with such investments and interests are only recognized to the extent that it is probable that there will be sufficient taxable income against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future. Deferred income tax assets and liabilities are measured at the tax rates that are expected to apply in the period in which the liability is settled or the asset realized, based on tax rates and tax laws that have been enacted or substantively enacted by the end of the reporting period. The measurement of deferred income tax liabilities and assets reflect the tax consequences that would follow from the manner in which Brookfield Infrastructure expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities. Deferred income tax assets and liabilities are offset when there is a legally enforceable right to set off current tax assets against current tax liabilities and when they relate to income taxes levied by the same taxation authority within a single taxable entity or Brookfield Infrastructure intends to settle its current tax assets and liabilities on a net basis in the case where there exist different taxable entities in the same taxation authority and when there is a legally enforceable right to set off current tax assets against current tax liabilities. (o) Assets Held for Sale Non-current assets and disposal groups are classified as held for sale if their carrying amount will be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable and the non-current asset or disposal group is available for immediate sale in its present condition. Management must be committed to the sale, which should be expected to qualify for recognition as a completed sale within one year from the date of classification subject to limited exceptions. When Brookfield Infrastructure is committed to a sale plan involving loss of control of a subsidiary, all of the assets and liabilities of that subsidiary are classified as held for sale when the criteria described above are met, regardless of whether Brookfield Infrastructure will retain a non-controlling interest in its former subsidiary after the sale. Non-current assets and disposal groups classified as held for sale are measured at the lower of their previous carrying amount and fair value less costs to sell. Non-current assets classified as held for sale and the assets of a disposal group are presented separately from other assets in the Consolidated Statements of Financial Position and are classified as current. The liabilities of a disposal group classified as held for sale are presented separately from other liabilities in the Consolidated Statements of Financial Position. Once classified as held for sale, property, plant and equipment and intangible assets are not depreciated or amortized, respectively. (p) Provisions Provisions are recognized when Brookfield Infrastructure has a present obligation, either legal or constructive, as a result of a past event, it is probable that Brookfield Infrastructure will be required to settle the obligation, and a reliable estimate can be made of the amount of the obligation. The amount recognized as a provision is the best estimate of the consideration required to settle the present

SEGMENT INFORMATION

SEGMENT INFORMATION	12 Months Ended
	Dec. 31, 2020
Operating Segments [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION IFRS 8, Operating Segments, requires operating segments to be determined based on information that is regularly reviewed by the Executive Management and the Board of Directors for the purpose of allocating resources to the segment and to assess its performance. Key measures used by the Chief Operating Decision Maker (“CODM”) in assessing performance and in making resource allocation decisions are Funds from Operations (“FFO”) and adjusted earnings before interest, tax, depreciation and amortization (“Adjusted EBITDA”), which enable the determination of return on the equity deployed. FFO is calculated as net income excluding the impact of depreciation and amortization, deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. Adjusted EBITDA is calculated as net income excluding the impact of depreciation and amortization, interest expense, current and deferred income taxes, breakage and transaction costs, and non-cash valuation gains or losses. During the fourth quarter of 2020, our partnership conducted a comprehensive review of our operating segments. To better align with how our CODM reviews and evaluates our operations, our district energy and Indian natural gas operations were reallocated to our utilities segment and our Australian export terminal was reallocated to our transport segment. Our energy segment was renamed to midstream and our data infrastructure segment was renamed to data. Comparative figures have been adjusted retrospectively to reflect the impact of the reallocation. FOR THE YEAR ENDED DECEMBER 31, 2020 US$ MILLIONS Total attributable to Brookfield Infrastructure Contribution Attributable As per IFRS financials (1) Utilities Transport Midstream Data Corporate Total Revenues (2) $ 1,434 $ 1,573 $ 572 $ 519 $ — $ 4,098 $ (1,379) $ 6,166 $ 8,885 Costs attributed to revenues (580) (767) (193) (253) — (1,793) 600 (3,650) (4,843) General and administrative costs — — — — (312) (312) — — (312) Adjusted EBITDA 854 806 379 266 (312) 1,993 (779) 2,516 Other (expense) income (43) (2) 3 (1) 127 84 17 (188) (87) Interest expense (152) (214) (93) (69) (95) (623) 177 (733) (1,179) FFO 659 590 289 196 (280) 1,454 (585) 1,595 Depreciation and amortization (268) (419) (153) (194) — (1,034) 471 (1,142) (1,705) Deferred taxes (80) 30 (10) 74 (11) 3 (65) 8 (54) Mark-to-market on hedging items and other (91) (116) (31) (44) 253 (29) 48 49 68 Share of earnings from associates — — — — — — 131 — 131 Net income attributable to non-controlling interest — — — — — — — (510) (510) Net income (loss) attributable to partnership (3) $ 220 $ 85 $ 95 $ 32 $ (38) $ 394 $ — $ — $ 394 FOR THE YEAR ENDED DECEMBER 31, 2019 US$ MILLIONS Total attributable to Brookfield Infrastructure Contribution Attributable As per IFRS financials (1) Utilities Transport Midstream Data Corporate Total Revenues (2) $ 1,432 $ 1,614 $ 491 $ 336 $ — $ 3,873 $ (1,424) $ 4,148 $ 6,597 Costs attributed to revenues (582) (781) (171) (161) — (1,695) 649 (2,349) (3,395) General and administrative costs — — — — (279) (279) — — (279) Adjusted EBITDA 850 833 320 175 (279) 1,899 (775) 1,799 Other (expense) income (31) (3) 10 3 91 70 11 (109) (28) Interest expense (147) (227) (86) (42) (83) (585) 173 (492) (904) FFO 672 603 244 136 (271) 1,384 (591) 1,198 Depreciation and amortization (264) (370) (131) (129) (1) (895) 399 (718) (1,214) Deferred taxes (41) 25 (55) 10 (16) (77) 52 (3) (28) Mark-to-market on hedging items and other (64) (168) 132 (30) (49) (179) (84) (60) (323) Share of earnings from associates — — — — — — 224 — 224 Net income attributable to non-controlling interest — — — — — — — (417) (417) Net income (loss) attributable to partnership (3) $ 303 $ 90 $ 190 $ (13) $ (337) $ 233 $ — $ — $ 233 FOR THE YEAR ENDED DECEMBER 31, 2018 US$ MILLIONS Total attributable to Brookfield Infrastructure Contribution Attributable As per IFRS financials (1) Utilities Transport Midstream Data Corporate Total Revenues (2) $ 1,070 $ 1,831 $ 434 $ 170 $ — $ 3,505 $ (1,524) $ 2,671 $ 4,652 Costs attributed to revenues (371) (1,044) (177) (77) — (1,669) 833 (1,372) (2,208) General and administrative costs — — — — (223) (223) — — (223) Adjusted EBITDA 699 787 257 93 (223) 1,613 (691) 1,299 Other (expense) income (25) 2 17 (4) 72 62 11 (107) (34) Interest expense (103) (203) (68) (12) (58) (444) 134 (245) (555) FFO 571 586 206 77 (209) 1,231 (546) 947 Depreciation and amortization (211) (361) (114) (72) — (758) 370 (413) (801) Deferred taxes (34) 38 (9) 7 10 12 (44) (14) (46) Mark-to-market on hedging items and other (99) (215) (49) (6) 85 (284) 233 (124) (175) Gain on sale of associate, net of tax — — — — 209 209 — — 209 Share of losses from associates — — — — — — (13) — (13) Net income attributable to non-controlling interest — — — — — — — (396) (396) Net income attributable to partnership (3) $ 227 $ 48 $ 34 $ 6 $ 95 $ 410 $ — $ — $ 410 (1) The above table provides each segment’s results in the format that management organizes its reporting segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations accounted for using the consolidation and equity methods under IFRS. The above table reconciles Brookfield Infrastructure’s proportionate results to our partnership’s Consolidated Statements of Operating Results on a line by line basis by aggregating the components comprising the earnings from our partnership’s investments in associates and reflecting the portion of each line item attributable to non-controlling interests. (2) Revenues on a consolidated basis were $4,083 million (2019: $4,265 million, 2018: $2,811 million) from our utilities segment, $3,449 million (2019: $1,617 million, 2018: $1,629 million) from our transport segment, $643 million (2019: $399 million, 2018: $212 million) from our midstream segment and $710 million (2019: $316 million, 2018: $nil) from our data segment. (3) Includes net income (loss) attributable to limited partners, non-controlling interests—Redeemable Partnership Units held by Brookfield, non-controlling interests—Exchange LP Units, non-controlling interests - BIPC exchangeable shares, general partner and limited partners. 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 Brookfield Infrastructure’s assets by reportable operating segment: Total Attributable to Brookfield Infrastructure Contribution Attributable Working As per IFRS financials (1) AS AT Utilities Transport Midstream Data Corporate Brookfield Total assets $ 6,814 $ 9,155 $ 3,829 $ 3,338 $ (2,062) $ 21,074 $ (4,895) $ 37,851 $ 7,301 $ 61,331 Total Attributable to Brookfield Infrastructure Contribution Attributable Working As per IFRS financials (1) AS AT Utilities Transport Midstream Data Corporate Brookfield Total assets $ 6,679 $ 7,962 $ 3,689 $ 2,204 $ (1,284) $ 19,250 $ (2,884) $ 32,621 $ 7,321 $ 56,308 (1) The above table provides each segment’s assets in the format that management organizes its reporting segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations using consolidation and the equity method whereby our partnership either controls or exercises significant influence over the investment respectively. The above table reconciles Brookfield Infrastructure’s proportionate assets to total assets presented on our partnership’s Consolidated Statements of Financial Position by removing net liabilities contained within investments in associates and joint ventures and reflecting the assets attributable to non-controlling interests, and adjusting for working capital assets which are netted against working capital liabilities. Geographic Information Revenues from external customers Substantially all of our partnership’s revenues are recognized over time as services are rendered. The following table disaggregates revenues by geographical region. US$ MILLIONS 2020 2019 2018 United States $ 2,279 $ 921 $ 293 Canada 1,461 976 379 United Kingdom 1,305 688 653 Brazil 981 1,142 1,112 Australia 916 1,031 1,104 Colombia 799 1,054 693 India 740 399 60 Chile 117 163 168 Peru 81 107 92 Other 206 116 98 $ 8,885 $ 6,597 $ 4,652 Brookfield Infrastructure’s customer base is comprised predominantly of investment grade companies. Our revenues are well diversified by region and counterparty with only one customer making up greater than 10% of our partnership’s consolidated revenues. For the year ended December 31, 2020, revenue generated from this customer within the utilities segment was $942 million (2019: $1,141 million). Our partnership has completed a review of the credit risk of key counterparties. Based on their liquidity position, business performance, and aging of our accounts receivable, we do not have any significant changes in expected credit losses at this time. Our partnership continues to monitor the credit risk of our counterparties in light of the current economic environment. Non-current assets US$ MILLIONS 2020 2019 United States $ 13,372 $ 13,671 India 10,986 3,150 Canada 10,057 9,243 United Kingdom 8,940 7,196 Brazil 5,404 7,103 Australia 4,042 5,488 Colombia 1,256 1,166 Peru 1,247 1,337 Europe 1,022 764 Chile 841 821 Other 453 528 $ 57,620 $ 50,467

DISPOSITION OF BUSINESSES

DISPOSITION OF BUSINESSES	12 Months Ended
	Dec. 31, 2020
Disclosure of interests in other entities [Abstract]
DISPOSITION OF BUSINESSES	DISPOSITION OF BUSINESSES Dispositions Completed in 2020 a) Partial disposition of our Australian export terminal On December 7, 2020, Brookfield Infrastructure, alongside institutional partners (collectively the “DBI Consortium”) completed the partial sale of a 22% interest in our Australian export terminal for net proceeds of approximately $55 million (DBI consortium total of approximately $265 million). Our partnership recognized gains of approximately $400 million (DBI consortium total of $575 million) in Other income (expense) in the Consolidated Statement of Operating Results related to the disposition and remeasurement of our residual 49% interest. The partnership derecognized the business from our consolidated financial statements effective December 7, 2020, and accounts for our residual interest using the equity method, as it retained significant influence over the Australian export terminal. Net losses relating to foreign currency translation and net investment and cash flow hedges of approximately $35 million (DBI consortium total of approximately $70 million) were reclassified from accumulated other comprehensive income to Other income (expense) on the Consolidated Statement of Operating Results. b) Disposition of the Australian portion of our North American rail operation On February 15, 2020, Brookfield Infrastructure, together with institutional partners, completed the sale of its 51% interest in the Australian operations of its North American rail infrastructure business for total consideration of approximately $420 million, of which approximately $40 million is attributable to our partnership. The total consideration includes deferred consideration of approximately $195 million. Our partnership recognized no gain or loss on disposition. c) Partial disposition of our interest in our Chilean toll road business On February 6, 2020, Brookfield Infrastructure completed the sale of a further 33% interest in its Chilean toll road business for net proceeds of approximately $170 million. Brookfield Infrastructure retained control over the business subsequent to the sale. As a result of the partial disposition, a gain of approximately $140 million (net of tax) and accumulated other comprehensive losses of $44 million were recognized directly in retained earnings (deficit) on the Consolidated Statements of Partnership Capital. d) Disposition of Colombian regulated distribution operation On January 14, 2020, Brookfield Infrastructure, alongside institutional partners (collectively, the “EBSA consortium”) completed the sale of its 17% interest in a Colombian regulated distribution operation for proceeds of approximately $88 million (EBSA consortium total of approximately $495 million). Our partnership recognized a gain of $36 million (EBSA consortium total of $197 million) in the Consolidated Statement of Operating Results. The partnership’s share of accumulated revaluation surplus was $61 million which was reclassified from accumulated other comprehensive income directly to retained earnings and recorded within Other items on the Consolidated Statements of Partnership Capital. The partnership’s share of net losses relating to previous foreign exchange movements and cash flow hedges was $44 million which were reclassified from accumulated other comprehensive income to Other income (expense) on the Consolidated Statement of Operating Results. Dispositions Completed in 2019 e) Disposition of Australian District Energy Operation In November 2019, Brookfield Infrastructure completed the sale of its wholly-owned district energy business in Australia. The Australian district energy business was sold to a third party for net proceeds of $277 million. After recognizing earnings and foreign currency translation until the date of sale, the partnership’s carrying value of the operation was $215 million. On disposition of the business, the partnership recognized a gain of $62 million in the Consolidated Statement of Operating Results, net of transaction costs of $5 million. As a result of the disposition, accumulated revaluation surplus of $12 million (net of tax) was reclassified from accumulated other comprehensive income directly to retained earnings and recorded within Other items on the Consolidated Statements of Partnership Capital. Net losses of $35 million relating to foreign currency translation and net investment hedges were reclassified from accumulated other comprehensive income to Other income (expense) on the Consolidated Statement of Operating Results. f) Partial Disposition of our Interest in Chilean Toll Road Business On February 7, 2019, Brookfield Infrastructure completed the sale of a 17% interest in its Chilean toll road business for total after-tax proceeds of $365 million. Proceeds included a $200 million distribution from a local financing completed at the business prior to the sale of our interest. Our partnership received $165 million. Brookfield Infrastructure retained control over the business subsequent to the sale. As a result of the disposition, a gain of $354 million (net of tax) was recognized directly in equity. Net losses of $38 million relating to foreign currency translation and net investment hedges were reclassified from accumulated other comprehensive income directly to retained earnings (deficit) on the Consolidated Statements of Partnership Capital.

ACQUISITION OF BUSINESSES

ACQUISITION OF BUSINESSES	12 Months Ended
	Dec. 31, 2020
Disclosure of detailed information about business combination [abstract]
ACQUISITION OF BUSINESSES	ACQUISITION OF BUSINESSES Acquisitions Completed in 2020 a) Acquisition of a telecom tower operation in India On August 31, 2020, Brookfield Infrastructure, alongside institutional partners (the “Summit consortium”), acquired an effective 17% interest in Summit Digitel Infrastructure Private Limited, an Indian telecom tower operation (“Summit”) from Reliance Industries Limited (“RIL”) for $584 million (Summit consortium total of approximately $3.4 billion). Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective August 31, 2020. Acquisition costs of approximately $15 million were recorded in Other income (expense) within the Consolidated Statements of Operating Results. Consideration transferred US$ MILLIONS Cash $ 584 Total Consideration $ 584 Fair value of assets and liabilities acquired as of August 31, 2020 (provisional) (1) : US$ MILLIONS Accounts receivable and other $ 408 Property, plant and equipment 7,334 Intangible assets (2) 532 Goodwill 27 Accounts payable and other liabilities (417) Non-recourse borrowings (2,356) Lease liabilities (2,101) Deferred income tax liabilities (22) Net assets acquired before non-controlling interest 3,405 Non-controlling interest (3) (2,821) Net assets acquired $ 584 (1) The fair values of all acquired assets, liabilities, and non-controlling interest for this operation have been determined on a provisional basis given the proximity of the acquisition to the reporting date, pending finalization of the determination of the fair values of the acquired assets and liabilities. Our partnership is in the process of obtaining additional information in order to assess the fair value of property, plant and equipment, intangible assets, and liabilities as well as the initial measurement of right-of-use assets and liabilities as at the date of acquisition. (2) Refer to Note 14, Intangible Assets, for further details. (3) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date, and includes capital provided by non-controlling interest in the form of a shareholder loan to the operating business. The goodwill recorded on acquisition is largely reflective of the potential to obtain long-term contracts for the business’ unutilized capacity of the telecom towers. The goodwill recognized is not deductible for income tax purposes. For the year ended December 31, 2020, Summit contributed revenues of $360 million and a net income of $8 million. b) Partial acquisition of interest in our Colombian natural gas transmission operation On July 15, 2020, Brookfield Infrastructure, alongside institutional partners (the “Vanti consortium”), completed a take private tender offer resulting in the acquisition of an additional 20% interest (Brookfield Infrastructure’s share - approximately 6%) in our Colombian natural gas transmission operation, increasing our ownership of the business to approximately 21%. Total consideration paid was approximately $45 million (Vanti consortium total of $150 million), of which approximately $25 million (Vanti consortium total of approximately $90 million) was funded through equity and the remainder with asset level debt raised on closing. As a result of the partial acquisition, a loss of approximately $10 million was recognized directly in retained earnings (deficit) on the Consolidated Statements of Partnership Capital as a result of the purchase price exceeding the previous carrying value of non-controlling interests. Acquisitions Completed in 2019 c) Acquisition of a Western Canadian natural gas midstream business (federally regulated) On December 31, 2019, Brookfield Infrastructure, alongside institutional partners (the “NorthRiver consortium”), acquired an effective 29% interest in the federally regulated portion of Enbridge Inc.’s Canadian natural gas midstream business for total consideration of $377 million (NorthRiver consortium total of $1.3 billion). Under Brookfield’s ownership, the business will be operated alongside the provincial assets acquired in 2018 and rebranded NorthRiver Midstream Inc. (“NorthRiver”). The acquisition was funded through equity of $246 million (NorthRiver consortium total of $861 million) and the remainder with asset level debt raised on closing. Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective December 31, 2019. Acquisition costs of $8 million were recorded as Other income (expense) within the Consolidated Statements of Operating Results in 2019. Consideration transferred US$ MILLIONS Cash $ 377 Total Consideration $ 377 Fair value of assets and liabilities acquired as of December 31, 2019: US$ MILLIONS Accounts receivable and other $ 5 Property, plant and equipment 1,198 Intangible assets 74 Goodwill 218 Deferred income tax assets 41 Accounts payable and other liabilities (218) Net assets acquired before non-controlling interest 1,318 Non-controlling interest (1) (941) Net assets acquired $ 377 (1) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. The goodwill recorded on acquisition is largely reflective of the potential to obtain long-term contracts for the business’ unutilized capacity and production growth in certain locations. The goodwill recognized is deductible for income tax purposes. d) Acquisition of a North American rail business On December 30, 2019, Brookfield Infrastructure, alongside institutional partners (the “G&W consortium”), acquired an effective 9% interest in Genesee & Wyoming Inc. (“G&W”), a North American rail infrastructure business, for total consideration of approximately $602 million (G&W consortium total of $6.5 billion). The acquisition was funded through equity of $502 million (G&W consortium total of $5.4 billion) and the remainder with asset level debt raised on closing. Concurrently, Brookfield Infrastructure entered into a voting agreement with affiliates of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective December 30, 2019. Acquisition costs of $38 million were recorded within Other income (expense) in the Consolidated Statements of Operating Results in 2019. Consideration transferred US$ MILLIONS Cash $ 602 Total Consideration $ 602 Fair value of assets and liabilities acquired as of December 30, 2019: US$ MILLIONS Cash and cash equivalents $ 67 Accounts receivable and other 509 Assets classified as held for sale (1) 1,584 Property, plant and equipment 5,283 Intangible assets (2) 1,992 Investment in associate 48 Goodwill 2,042 Accounts payable and other liabilities (612) Non-recourse borrowings (1,567) Liabilities directly associated with assets classified as held for sale (1) (893) Other liabilities (566) Deferred income tax liabilities (1,111) Net assets acquired before non-controlling interest 6,776 Non-controlling interest (3) (6,174) Net assets acquired $ 602 (1) Brookfield Infrastructure agreed to sell the Australian operations of G&W. As a result, the assets and liabilities of these businesses were classified as held for sale as at December 31, 2020. The sale was completed on February 15, 2020. Refer to Note 5, Disposition of Businesses, for further details. (2) Refer to Note 14, Intangible Assets, for details. (3) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. The goodwill recorded on acquisition reflects potential growth prospects and a strong market position as a key provider of rail infrastructure in North America. None of the goodwill recognized is deductible for income tax purposes. e) Acquisition of a U.K. telecommunication business On December 19, 2019, Brookfield Infrastructure, alongside institutional partners (the “consortium”), acquired an effective 25% interest in Wireless Infrastructure Group Limited (“WIG”), a U.K. telecommunication business, for total consideration by Brookfield Infrastructure of approximately $141 million (consortium total of $564 million). Brookfield Infrastructure’s consideration consists of $73 million in cash (consortium total of $293 million) and deferred consideration of $68 million (consortium total of $270 million) payable over two years from the close of the transaction. Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective December 19, 2019. Acquisition costs of $6 million were recorded as Other income (expense) within the Consolidated Statements of Operating Results in 2019. Consideration transferred US$ MILLIONS Cash $ 73 Deferred consideration 68 Total Consideration $ 141 Fair value of assets and liabilities acquired as of December 19, 2019: US$ MILLIONS Cash and cash equivalents $ 9 Accounts receivable and other 18 Property, plant and equipment 95 Intangible assets (1) 465 Goodwill 301 Accounts payable and other liabilities (53) Non-recourse borrowings (195) Deferred income tax liability (76) Net assets acquired before non-controlling interest 564 Non-controlling interest (2) (423) Net assets acquired $ 141 (1) Refer to Note 14, Intangible Assets, for details. (2) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. Upon consolidation of WIG, an additional deferred tax liability of $25 million was recorded. The deferred income tax liability arose as the tax bases of the net assets acquired were lower than their fair values. The inclusion of this liability in the net book value of the acquired business gave rise to goodwill of $25 million, which is recoverable so long as the tax circumstances that gave rise to the goodwill do not change. To date, no such changes have occurred. The remaining goodwill recognized on acquisition is largely reflective of potential customer growth, arising from the business’ position as one of the key telecommunication infrastructure providers in the U.K., and the increasing reliance on core telecom networks. f) Acquisition of a natural gas pipeline in India On March 22, 2019, Brookfield Infrastructure, along with institutional partners (the “EWPL consortium”), acquired an effective 24% interest in a cross country gas pipeline business in India, East-West Pipeline (“EWPL”), for total consideration of $443 million (EWPL consortium total of $1,879 million). The partnership’s share of the acquisition was funded through equity of $226 million (EWPL consortium total of $959 million) and $217 million (EWPL consortium total of $920 million) of asset level debt raised on closing. Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective March 22, 2019. Acquisition costs of $3 million were recorded within Other income (expense) in the Consolidated Statements of Operating Results in 2019. Consideration transferred US$ MILLIONS Cash $ 443 Total Consideration $ 443 Fair value of assets and liabilities acquired as of March 22, 2019: US$ MILLIONS Accounts receivable and other $ 94 Property, plant and equipment 2,134 Intangible assets 295 Accounts payable and other liabilities (66) Net assets acquired before non-controlling interest 2,457 Non-controlling interest (1) (2,014) Net assets acquired $ 443 (1) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. g) Acquisition of DCI Data Centers On January 4, 2019, Brookfield Infrastructure, alongside institutional partners (the “DCI consortium”), acquired an effective 29% interest in DCI Data Centers (“DCI”), an Australian data storage business, for total consideration of $78 million (DCI consortium total of $272 million). The partnership’s share of the acquisition was funded through equity of $48 million (DCI consortium total of $166 million) and the remainder with asset level debt raised on closing. Concurrently, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure consolidated the entity effective January 4, 2019. Acquisition costs of $11 million were recorded within Other income (expense) in the Consolidated Statements of Operating Results in 2019. Consideration transferred US$ MILLIONS Cash $ 78 Total Consideration $ 78 Fair value of assets and liabilities acquired as of January 4, 2019: US$ MILLIONS Accounts receivable and other $ 2 Investment properties 211 Goodwill 68 Accounts payable and other liabilities (9) Net assets acquired before non-controlling interest 272 Non-controlling interest (1) (194) Net assets acquired $ 78 (1) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. The goodwill recorded on acquisition is largely reflective of potential customer growth, arising from the business’ position as one of the key data storage providers in Australia, and the increasing rate of worldwide data consumption. None of the goodwill recognized is deductible for income tax purposes. h) Individually insignificant business combinations The following table summarizes the purchase price allocation in aggregate of individually insignificant business combinations that were completed in 2019. US$ MILLIONS Cash $ 24 Pre-existing interest in business (1) 30 Total Consideration $ 54 (1) Prior to the acquisition, Brookfield held an interest in two of the acquirees which were accounted for using the equity method. Fair value of assets and liabilities acquired during the year to date: US$ MILLIONS Cash and cash equivalents $ 16 Accounts receivable and other 6 Intangible assets 422 Goodwill 15 Accounts payable and other liabilities (21) Non-recourse borrowings (210) Deferred income tax liabilities (55) Net assets acquired before non-controlling interest 173 Non-controlling interest (1) (119) Net assets acquired $ 54 (1) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. i) Supplemental information Had the acquisition of Summit been effective January 1, 2020, the revenue and net income of Brookfield Infrastructure would have been approximately $9.6 billion (unaudited) and $0.9 billion (unaudited), respectively, for the year ended December 31, 2020. In determining the pro-forma revenue and net income attributable to our partnership, management has: • Calculated depreciation of property, plant and equipment and amortization of intangible assets acquired on the basis of the fair values at the time of the business combination rather than the carrying amounts recognized in the pre-acquisition financial statements and; • Based borrowing costs on the funding levels, credit ratings and debt and equity position of Brookfield Infrastructure after the business combination.

FAIR VALUE OF FINANCIAL INSTRUM

FAIR VALUE OF FINANCIAL INSTRUMENTS	12 Months Ended
	Dec. 31, 2020
Fair Value Measurement [Abstract]
FAIR VALUE OF FINANCIAL INSTRUMENTS	FAIR VALUE OF FINANCIAL INSTRUMENTS The fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair values are determined by reference to quoted bid or ask prices, as appropriate. Where bid and ask prices are unavailable, the closing price of the most recent transaction of that instrument is used. In the absence of an active market, fair values are determined based on prevailing market rates such as bid and ask prices, as appropriate for instruments with similar characteristics and risk profiles or internal or external valuation models, such as option pricing models and discounted cash flow analyses, using observable market inputs. Fair values determined using valuation models require the use of assumptions concerning the amount and timing of estimated future cash flows and discount rates. In determining those assumptions, Brookfield Infrastructure looks primarily to external readily observable market inputs such as interest rate yield curves, currency rates, and price and rate volatilities as applicable. The fair value of interest rate swap contracts which form part of financing arrangements is calculated by way of discounted cash flows using market interest rates and applicable credit spreads. Classification of Financial Instruments Financial instruments classified as fair value through profit or loss are carried at fair value on the Consolidated Statements of Financial Position. Changes in the fair values of financial instruments classified as fair value through profit or loss are recognized in profit or loss. Mark-to-market adjustments on hedging items for those in an effective hedging relationship and changes in the fair value of securities designated as fair value through other comprehensive income are recognized in other comprehensive income. Carrying Value and Fair Value of Financial Instruments The following table provides the allocation of financial instruments and their associated financial instrument classifications as at December 31, 2020: US$ MILLIONS Financial Instrument Classification MEASUREMENT BASIS Fair value through profit or loss Fair value through OCI Amortized Cost Total Financial assets Cash and cash equivalents $ — $ — $ 867 $ 867 Accounts receivable and other — — 2,031 2,031 Financial assets (current and non-current) (1) 523 36 322 881 Marketable securities 323 203 — 526 Total $ 846 $ 239 $ 3,220 $ 4,305 Financial liabilities Corporate borrowings $ — $ — $ 3,158 $ 3,158 Non-recourse borrowings (current and non-current) — — 20,020 20,020 Accounts payable and other — — 6,548 6,548 Financial liabilities (current and non-current) (1) 931 — 2,443 3,374 Preferred shares (2) — — 20 20 Total $ 931 $ — $ 32,189 $ 33,120 (1) Derivative instruments which are elected for hedge accounting totaling $373 million are included in financial assets and $572 million of derivative instruments are included in financial liabilities. (2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield. The following table provides the allocation of financial instruments and their associated financial instrument classifications as at December 31, 2019: US$ MILLIONS Financial Instrument Classification MEASUREMENT BASIS Fair value through profit or loss Fair value Amortized Cost Total Financial assets Cash and cash equivalents $ — $ — $ 827 $ 827 Accounts receivable and other — — 1,909 1,909 Financial assets (current and non-current) (1) 893 16 144 1,053 Marketable securities 69 73 — 142 Total $ 962 $ 89 $ 2,880 $ 3,931 Financial liabilities Corporate borrowings $ — $ — $ 2,475 $ 2,475 Non-recourse borrowings (current and non-current) — — 18,544 18,544 Accounts payable and other — — 3,676 3,676 Financial liabilities (current and non-current) (1) 490 — 1,683 2,173 Preferred shares (2) — — 20 20 Total $ 490 $ — $ 26,398 $ 26,888 (1) Derivative instruments which are elected for hedge accounting totaling $694 million are included in financial assets and $285 million of derivative instruments are included in financial liabilities. (2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield. The following table provides the carrying values and fair values of financial instruments as at December 31, 2020 and December 31, 2019: Dec. 31, 2020 Dec. 31, 2019 US$ MILLIONS Carrying Value Fair Value Carrying Value Fair Value Financial assets Cash and cash equivalents $ 867 $ 867 $ 827 $ 827 Accounts receivable and other 2,031 2,031 1,909 1,909 Financial assets (current and non-current) 881 881 1,053 1,053 Marketable securities 526 526 142 142 Total $ 4,305 $ 4,305 $ 3,931 $ 3,931 Dec. 31, 2020 Dec. 31, 2019 US$ MILLIONS Carrying Value Fair Value Carrying Value Fair Value Financial liabilities Corporate borrowings (1) $ 3,158 $ 3,350 $ 2,475 $ 2,507 Non-recourse borrowings (2) 20,020 20,328 18,544 18,891 Accounts payable and other 6,548 6,548 3,676 3,676 Preferred shares (3) 20 20 20 20 Financial liabilities (current and non-current) 3,374 3,374 2,173 2,173 Total $ 33,120 $ 33,620 $ 26,888 $ 27,267 (1) Corporate borrowings are classified under level 1 of the fair value hierarchy; quoted prices in an active market are available. (2) Non-recourse borrowings are classified under level 2 of the fair value hierarchy with the exception of certain borrowings at our U.K. port operation and margin loans associated with certain financial assets, which are classified under level 1. For level 2 fair values, future cash flows are estimated based on observable forward interest rates at the end of the reporting period. (3) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield. Hedging Activities Brookfield Infrastructure uses derivatives and non-derivative financial instruments to manage or maintain exposures to interest and currency risks. For certain derivatives which are used to manage exposures, Brookfield Infrastructure determines whether hedge accounting can be applied. When hedge accounting can be applied, a hedge relationship can be designated as a fair value hedge, cash flow hedge or a hedge of foreign currency exposure of a net investment in a foreign operation with a functional currency other than the U.S. dollar. To qualify for hedge accounting, the derivative must be designated as a hedge of a specific exposure and the hedging relationship must meet all of the hedge effectiveness requirements in accomplishing the objective of offsetting changes in the fair value or cash flows attributable to the hedged risk both at inception and over the life of the hedge. If it is determined that the hedging relationship does not meet all of the hedge effectiveness requirements, hedge accounting is discontinued prospectively. Cash Flow Hedges Brookfield Infrastructure uses interest rate swaps to hedge the variability in cash flows related to a variable rate asset or liability and highly probable forecasted issuances of debt. The settlement dates coincide with the dates on which the interest is payable on the underlying debt, and the amount accumulated in equity is reclassified to profit or loss over the period that the floating rate interest payments on debt affect profit or loss. For the year ended December 31, 2020, pre-tax net unrealized losses of $104 million (2019: losses of $33 million, 2018: losses of $71 million) were recorded in other comprehensive income for the effective portion of the cash flow hedges. As at December 31, 2020, there was a net derivative liability balance of $150 million relating to derivative contracts designated as cash flow hedges (2019: asset balance of $363 million). Net Investment Hedges Brookfield Infrastructure uses foreign exchange contracts and foreign currency denominated debt instruments to manage its foreign currency exposures arising from net investments in foreign operations having a functional currency other than the U.S. dollar. For the year ended December 31, 2020, losses of $12 million (2019: losses of $113 million, 2018: gains of $97 million) were recorded in other comprehensive income relating to hedges of net investments in foreign operations. Further, Brookfield Infrastructure received $83 million (2019: paid $62 million, 2018: paid $53 million) relating to the settlement of foreign exchange contracts in the period. As at December 31, 2020, there was a net unrealized derivative liability balance of $49 million relating to derivative contracts designated as net investment hedges (2019: net unrealized derivative asset balance of $46 million). Fair Value Hierarchical Levels—Financial Instruments Fair value hierarchical levels are directly determined by the amount of subjectivity associated with the valuation inputs of these assets and liabilities, and are as follows: Level 1 — Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date. Level 2 — Inputs other than quoted prices included in Level 1 are either directly or indirectly observable for the asset or liability through correlation with market data at the measurement date and for the duration of the instrument’s anticipated life. Fair valued assets and liabilities that are included in this category are primarily certain derivative contracts and other financial assets carried at fair value in an inactive market. Level 3 — Inputs reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to determining the estimate. Fair valued assets and liabilities that are included in this category are interest rate swap contracts, derivative contracts, certain equity securities carried at fair value which are not traded in an active market and the non-controlling interest’s share of net assets of limited life funds. The fair value of our partnership’s financial assets and financial liabilities are measured at fair value on a recurring basis. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s financial assets and financial liabilities: US$ MILLIONS Fair value hierarchy Dec. 31, 2020 Dec. 31, 2019 Marketable securities Level 1 (1) $ 526 $ 142 Foreign currency forward contracts Level 2 (2) Financial asset $ 115 $ 140 Financial liability 251 97 Interest rate swaps & other Level 2 (2) Financial asset $ 438 $ 765 Financial liability 561 311 Other contracts Level 3 (3) Financial asset $ 6 $ 4 Financial liability 119 82 (1) Valuation technique: Quoted bid prices in an active market. (2) Valuation technique: Discounted cash flow. Future cash flows are estimated based on forward exchange and interest rates (from observable forward exchange and interest rates at the end of the reporting period) and contract forward rates, discounted at a rate that reflects our credit risk and the credit risk of various counterparties. (3) Valuation technique: Discounted cash flow. Future cash flows primarily driven by assumptions concerning the amount and timing of estimated future cash flows and discount rates. Assets and liabilities measured at fair value on a recurring basis include $1,085 million (2019: $1,051 million) of financial assets and $931 million (2019: $490 million) of financial liabilities which are measured at fair value using valuation inputs based on management’s best estimates. During the year, no transfers were made between level 1 and 2 or level 2 and 3.

CASH AND CASH EQUIVALENTS

CASH AND CASH EQUIVALENTS	12 Months Ended
	Dec. 31, 2020
Cash and cash equivalents [abstract]
CASH AND CASH EQUIVALENTS	CASH AND CASH EQUIVALENTS US$ MILLIONS 2020 2019 Cash $ 520 $ 467 Cash equivalents (1) 222 232 Restricted cash (2) 125 128 Total cash and cash equivalents $ 867 $ 827 (1) Short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.

FINANCIAL ASSETS

FINANCIAL ASSETS	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
FINANCIAL ASSETS	FINANCIAL ASSETS US$ MILLIONS 2020 2019 Current: Marketable securities $ 563 $ 142 Foreign currency forward contracts 34 112 Cross currency interest rate swaps 22 92 Loans and receivables 68 61 Other 11 25 Total current $ 698 $ 432 Non-current: Marketable securities $ 97 $ 71 Foreign currency forward contracts 81 29 Cross currency interest rate swaps 262 542 Loans and receivables 259 85 Other 10 36 Total non-current $ 709 $ 763

ACCOUNTS RECEIVABLE AND OTHER

ACCOUNTS RECEIVABLE AND OTHER	12 Months Ended
	Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]
ACCOUNTS RECEIVABLE AND OTHER	ACCOUNTS RECEIVABLE AND OTHER US$ MILLIONS 2020 2019 Current: Accounts receivable $ 1,463 $ 1,741 Prepayments & other assets 462 219 Total current $ 1,925 $ 1,960 Non-current: Finance lease receivables $ 343 $ — Accounts receivable 123 100 Restricted cash (1) 81 41 Tax recovery receivables 21 27 Other assets 188 89 Total non-current $ 756 $ 257 (1) Restricted cash primarily relates to our partnership’s financing arrangements, including debt service accounts. Cash that becomes unrestricted within one year of the reporting date is classified as cash and cash equivalents. The table below outlines Brookfield Infrastructure’s undiscounted lease payments to be received under operating and finance leases as at December 31, 2020: US$ MILLIONS Less than 1-2 years 2-3 years 3-4 years 4-5 years 5+ years Total lease payment receivable Finance lease receivable $ 62 $ 61 $ 61 $ 60 $ 59 $ 555 $ 858 Operating lease receivable 396 384 318 295 271 1,474 3,138 Total lease receivable $ 458 $ 445 $ 379 $ 355 $ 330 $ 2,029 $ 3,996

INVENTORY

INVENTORY	12 Months Ended
	Dec. 31, 2020
Inventories [Abstract]
INVENTORY	INVENTORY US$ MILLIONS 2020 2019 Natural gas inventory $ 71 $ 127 Raw materials and other 150 115 Carrying amount of inventories $ 221 $ 242 During the year ended December 31, 2020, Brookfield Infrastructure recognized $686 million (2019: $626 million, 2018: $502 million) worth of inventories as an expense in the Consolidated Statements of Operating Results and $3 million (2019: $3 million, 2018: $nil) relating to impairments of inventory.

INVESTMENT IN ASSOCIATES AND JO

INVESTMENT IN ASSOCIATES AND JOINT VENTURES	12 Months Ended
	Dec. 31, 2020
Interests In Other Entities [Abstract]
INVESTMENT IN ASSOCIATES AND JOINT VENTURES	INVESTMENT IN ASSOCIATES AND JOINT VENTURES Our partnership’s investment in associates and joint ventures are reviewed and reported on a segmented basis. Investments in the utilities segment include a 15% interest in a Brazilian electricity transmission operation, a 13% and 11% interest in two businesses collectively referred to as our regulated natural gas transmission business in Mexico and four associates of our Colombian natural gas distribution operation. Transport investments include a 45% interest in a Brazilian toll road business, an 11% interest in a Brazilian rail and port logistics business, a 19% ownership interest of a North American west coast container terminal, our 13%, 26% and 49% interests in port and export terminal operations in Australia and a 6% interest in a U.S. LNG export terminal. In our midstream segment, investments in associates and joint ventures include our 50% interest in a U.S. gas pipeline and a 20% interest in a North American gas storage operation. Our investments in the data segment include our 21% interest in a European telecommunications infrastructure operation, a 12% interest in a Brazilian data center operation and a 13% interest in a New Zealand data distribution business. The following table represents the change in the balance of investments in associates and joint ventures: US$ MILLIONS 2020 2019 Balance at beginning of year $ 4,967 $ 4,591 Share of earnings for the year 131 224 Foreign currency translation and other (245) (62) Share of other comprehensive income 7 54 Distributions (167) (254) Disposition of interest (1),(2) — (135) Held for sale (2) — (38) Change in basis of accounting (3) 466 — Acquisitions (4),(5),(6),(7) 369 587 Balance at end of year (8) $ 5,528 $ 4,967 (1) In June 2019, Brookfield Infrastructure sold its 40% interest in its European port operation to a third party for $135 million. (2) In July 2020, Brookfield Infrastructure sold its 11% interest in its Texas electricity transmission operation for total consideration, net of tax, of approximately $60 million. On disposition, Brookfield Infrastructure recognized a gain on sale of approximately $20 million. The investment was classified as held for sale effective December 31, 2019. (3) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian export terminal. Our 49% retained interest was remeasured using the initial public offering price of $466 million. Based on our ownership interest and governance rights retained, our partnership equity accounts for the entity. Refer to Note 5, Disposition of Businesses, for further details. (4) In March 2019, Brookfield Infrastructure, alongside its institutional partners, acquired an effective 12% interest in a Brazilian data center operation, Ascenty Participacoes S.A (“Ascenty”), for approximately $190 million. Brookfield maintains 50% of the voting rights of Ascenty in a joint venture with Digital Realty Trust Inc. Brookfield Infrastructure has joint control through its position in the business. Accordingly, our partnership equity accounts for the entity. Subsequent to the initial acquisition, Brookfield Infrastructure has made additional injections into the business to fund growth capital expenditures. (5) In July 2019, Brookfield Infrastructure, alongside its institutional partners, acquired an effective 12% interest in a New Zealand integrated data provider, Vodafone New Zealand (“VNZ”) for approximately $170 million. Brookfield maintains 50% of the voting rights of VNZ in a joint venture with Infratil Limited. Brookfield Infrastructure has joint control through its position in the business. Accordingly, our partnership equity accounts for the entity. (6) Brookfield Infrastructure acquired a 13% interest in Ramones II Norte (“Norte”) on October 7, 2019 and an 11% interest in Ramones II Sur (“Sur”) on October 21, 2019, collectively the regulated natural gas transmission business in Mexico (“Los Ramones”), for approximately $140 million . Brookfield maintains 50% of the voting rights in Norte and 45% of the voting rights in Sur. Brookfield Infrastructure has joint control of Los Ramones through its ownership interest and governance rights. (7) In September 2020, Brookfield Infrastructure, acquired an effective 6% interest in a U.S. LNG export terminal (“Sabine Pass”), Cheniere Energy Partners, L.P. for $369 million. Brookfield maintains a co-controlling interest in a joint venture with Blackstone Infrastructure Partners, which holds an approximate 41% interest in Sabine Pass. Based on our ownership interest and governance rights retained, our partnership equity accounts for the entity. (8) The current and comparative period include a shareholder loan of $500 million receivable from our U.S. gas pipeline. The following tables present the gross assets and liabilities of Brookfield Infrastructure’s investments in associates and joint ventures: As at December 31, 2020 Total Attributable to US$ MILLIONS Ownership and Voting Interest Current Non- Total Current Non- Total Total Other Partnership’s Utilities 11-20% $ 646 $ 6,142 $ 6,788 $ 487 $ 4,238 $ 4,725 $ 2,063 $ 1,810 $ 253 Transport 6-50% 1,266 25,762 27,028 1,959 9,836 11,795 15,233 12,474 2,759 Midstream (1) 20-50% 173 6,392 6,565 249 4,033 4,282 2,283 911 1,372 Data 12-21% 841 13,308 14,149 1,263 6,081 7,344 6,805 5,672 1,133 Corporate 25-50% 22 121 143 14 56 70 73 62 11 Total $ 2,948 $ 51,725 $ 54,673 $ 3,972 $ 24,244 $ 28,216 $ 26,457 $ 20,929 $ 5,528 (1) The partnership’s share of total net assets include a shareholder loan of $500 million receivable from our U.S. gas pipeline. As at December 31, 2019 Total Attributable to US$ MILLIONS Ownership and Voting Interest Current Non- Total Current Non- Total Total Other Partnership’s Utilities 11-20% $ 870 $ 6,499 $ 7,369 $ 686 $ 4,152 $ 4,838 $ 2,531 $ 2,286 $ 245 Transport 11-50% 1,233 18,327 19,560 1,948 8,444 10,392 9,168 6,770 2,398 Midstream (1) 20-50% 166 5,696 5,862 275 4,013 4,288 1,574 307 1,267 Data 12-21% 912 11,636 12,548 1,042 4,908 5,950 6,598 5,569 1,029 Corporate 25-50% 8 133 141 13 56 69 72 44 28 Total $ 3,189 $ 42,291 $ 45,480 $ 3,964 $ 21,573 $ 25,537 $ 19,943 $ 14,976 $ 4,967 (1) The partnership’s share of total net assets include a shareholder loan of $500 million receivable from our U.S. gas pipeline. Our investments in associates and joint ventures are evaluated for impairment annually or more often if events or circumstances indicate there may be impairment. Based on the analysis performed for the year ended December 31, 2020, our investments in associates and joint ventures remain largely unaffected by the global pandemic. Investments in associates and joint ventures represent long-term critical infrastructure supported by regulated or highly contracted revenues that provide stable and predictable cash flows. Our investments in associates and joint ventures are predominantly comprised of our U.S. gas pipeline, our Brazilian toll road operation, our European telecommunications infrastructure operation, our Australian export terminal and our U.S. LNG export terminal. Each of our U.S. gas pipeline, Australian export terminal and U.S. LNG export terminal generate cash flows through long-term capacity based “ship-or-pay” or “take-or-pay” agreements with high-quality investment grade counterparties which minimize volume and price risk. Our European telecommunications business includes approximately 7,000 multi-purpose towers and active rooftop sites and 5,500 kilometers of fiber backbone located in France. Cash flows are supported by long-term contracts which have not been affected by the current market environment. Investments in our Brazilian toll road operation relate to concession arrangements with local transportation authorities. While our toll road operations have experienced reduced volumes as a result of local government imposed shutdowns, we are engaged in discussions to determine if we will be compensated under the regulatory framework either through increased tariffs or extension of our concession agreement and believe that the long-term value of our concession arrangement will be not impacted. We have received positive indications that the global pandemic qualifies as an act of force majeure within our concession arrangements. As at December 31, 2020, two (2019: none) of our investments in associates or joint ventures have a quoted price in an active market. The following tables present the gross amounts of revenue, net income, other comprehensive income from Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2020, 2019, and 2018: Year ended December 31, 2020 Total Net Income Attributable to the Partnership US$ MILLIONS Revenue Net OCI Total Utilities $ 1,715 $ 364 $ (205) $ 159 $ 50 Transport 4,161 171 (1,419) (1,248) (101) Midstream 767 236 — 236 136 Data 2,245 293 374 667 45 Corporate 9 (15) (245) (260) 1 Total $ 8,897 $ 1,049 $ (1,495) $ (446) $ 131 Year ended December 31, 2019 Total Net Income Attributable to the Partnership US$ MILLIONS Revenue Net OCI Total Utilities $ 1,046 $ 354 $ 26 $ 380 $ 57 Transport 3,351 22 364 386 2 Midstream 734 351 (54) 297 184 Data 1,447 (38) 57 19 (9) Corporate 17 (38) (156) (194) (10) Total $ 6,595 $ 651 $ 237 $ 888 $ 224 Year ended December 31, 2018 Total Net Income Attributable to the Partnership US$ MILLIONS Revenue Net OCI Total Utilities $ 541 $ 92 $ 110 $ 202 $ 56 Transport 3,747 (74) (856) (930) (333) Midstream 739 91 8 99 46 Data 804 64 244 308 74 Corporate 41 (132) 356 224 55 Total $ 5,872 $ 41 $ (138) $ (97) $ (102) The following tables present the cash flow activities of Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2020, 2019, and 2018: Year ended December 31, 2020 Total Attributable to US$ MILLIONS Operating Investing Financing Total Cash Flows Other Partnership’s Utilities $ 184 $ (697) $ 285 $ (228) $ (199) $ (29) Transport 1,189 (1,039) 826 976 843 133 Midstream 378 (314) (56) 8 3 5 Data 852 (735) (77) 40 34 6 Corporate — — — — — — Total $ 2,603 $ (2,785) $ 978 $ 796 $ 681 $ 115 Year ended December 31, 2019 Total Attributable to US$ MILLIONS Operating Investing Financing Total Cash Flows Other Partnership’s Utilities $ 108 $ (1,109) $ 1,548 $ 547 $ 471 $ 76 Transport 692 (852) 11 (149) (76) (73) Midstream 357 (267) (95) (5) (3) (2) Data 531 (2,707) 2,201 25 30 (5) Corporate — — — — — — Total $ 1,688 $ (4,935) $ 3,665 $ 418 $ 422 $ (4) Year ended December 31, 2018 Total Attributable to US$ MILLIONS Operating Investing Financing Total Cash Flows Other Partnership’s Utilities $ 380 $ 6,189 $ (6,716) $ (147) $ (106) $ (41) Transport 776 (1,018) 369 127 77 50 Midstream 320 (288) (46) (14) (10) (4) Data 323 (305) 19 37 29 8 Corporate 7 (7) — — — — Total $ 1,806 $ 4,571 $ (6,374) $ 3 $ (10) $ 13

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT	12 Months Ended
	Dec. 31, 2020
Property, plant and equipment [abstract]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT US$ MILLIONS Utilities Transport Midstream Data Total Gross Carrying Amount: Balance at January 1, 2019 $ 6,248 $ 2,495 $ 2,443 $ 444 $ 11,630 Change in accounting policies (1) 110 356 108 633 1,207 Additions, net of disposals 770 122 116 8 1,016 Non-cash (disposals) additions (295) 49 23 (51) (274) Acquisitions through business combinations (2) 2,135 5,283 1,197 95 8,710 Assets reclassified as held for sale (455) — (3) — (458) Net foreign currency exchange differences 120 4 87 2 213 Balance at December 31, 2019 $ 8,633 $ 8,309 $ 3,971 $ 1,131 $ 22,044 Additions, net of disposals 535 387 306 77 1,305 Non-cash (disposals) additions 15 (241) (29) (26) (281) Acquisitions through business combinations (2) — — — 7,334 7,334 Net foreign currency exchange differences 106 242 73 77 498 Balance at December 31, 2020 $ 9,289 $ 8,697 $ 4,321 $ 8,593 $ 30,900 Accumulated depreciation: Balance at January 1, 2019 $ (985) $ (744) $ (120) $ — $ (1,849) Depreciation expense (415) (178) (84) (87) (764) Disposals 3 2 — — 5 Assets reclassified as held for sale 194 — — — 194 Non-cash disposals (additions) 50 (27) 3 — 26 Net foreign currency exchange differences (18) (3) (7) (1) (29) Balance at December 31, 2019 $ (1,171) $ (950) $ (208) $ (88) $ (2,417) Depreciation expense (419) (498) (141) (189) (1,247) Disposals 12 4 — — 16 Non-cash disposals — 130 — 17 147 Net foreign currency exchange differences (35) (90) (7) (3) (135) Balance at December 31, 2020 $ (1,613) $ (1,404) $ (356) $ (263) $ (3,636) Accumulated fair value adjustments: Balance at January 1, 2019 $ 2,002 $ 810 $ 221 $ — $ 3,033 Assets reclassified as held for sale (416) — — — (416) Fair value adjustments 582 45 92 — 719 Net foreign currency exchange differences 44 2 16 — 62 Non-cash disposals — — (12) — (12) Balance at December 31, 2019 $ 2,212 $ 857 $ 317 $ — $ 3,386 Fair value adjustments 652 113 21 — 786 Net foreign currency exchange differences 70 78 — — 148 Balance at December 31, 2020 $ 2,934 $ 1,048 $ 338 $ — $ 4,320 Net book value: December 31, 2020 (3) $ 10,610 $ 8,341 $ 4,303 $ 8,330 $ 31,584 December 31, 2019 $ 9,674 $ 8,216 $ 4,080 $ 1,043 $ 23,013 1. Relates to the adoption of IFRS 16 effective January 1, 2019. 2. See Note 6, Acquisition of Businesses, for additional information. 3. Includes right-of-use assets of $159 million (2019: $156 million) in our utilities segment, $1,187 million (2019: $1,329 million) in our transport segment, $113 million (2019: $116 million) in our midstream segment and $2,643 million (2019: $560 million) in our data segment. The partnership’s property, plant, and equipment is measured at fair value on a recurring basis with an effective date of revaluation for all asset classes of December 31, 2020 and 2019. Brookfield Infrastructure determined fair value under the income method or on a depreciated replacement cost basis. Assets under development were revalued where fair value could be reliably measured. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s property, plant and equipment assets valued using the income method, categorized by segment. Dec. 31, 2020 Dec. 31, 2019 Segment Primary Valuation Technique (1) Discount Rate Terminal Value Multiple Investment Horizon Primary Valuation Technique (1) Discount Rate Terminal Value Multiple Investment Horizon Utilities Discounted cash flow model 7% to 14% 7x to 23x 10 yrs Discounted cash flow model 7% to 14% 8x to 21x 10 to 20 yrs Transport Discounted cash flow model 7% to 13% 9x to 14x 10 yrs Discounted cash flow model 7% to 13% 9x to 14x 10 to 20 yrs Midstream Discounted cash flow model 15% 10x 5 to 10 yrs Discounted cash flow model 15% 10x 5 to 10 yrs (1) Certain businesses are valued using the replacement cost method as a result of their underlying operations. Replacement costs are determined with guidance from independent studies and third party evaluators. An increase in the discount rate would lead to a decrease in the fair value of property, plant and equipment. Conversely, an increase to the terminal value multiple would increase the fair value of property, plant and equipment. Our partnership has classified all property, plant and equipment under level 3 of the fair value hierarchy. At December 31, 2020, Brookfield Infrastructure carried out an assessment of the fair value of its utilities property, plant and equipment, resulting in a gain from revaluation of $652 million (2019: $582 million) which was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. Key drivers behind the revaluation gain recorded include growth in underlying cash flows at both of our U.K. regulated distribution business and our North American district energy operations associated with new customer connections and a more robust pipeline of growth opportunities which resulted in an increase in our terminal value assumption to align our values with observable market transactions. At December 31, 2020, Brookfield Infrastructure carried out an assessment of the fair value of its transport property, plant and equipment. A gain from revaluation of $113 million (2019: $45 million) was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. Underlying valuation assumptions in the transport segment remain relatively consistent with the prior year with the current year’s gain attributable to increasing cash flows. At December 31, 2020, Brookfield Infrastructure carried out an assessment of the fair value of its midstream property, plant and equipment. A gain from revaluation of $21 million (2019: $92 million) was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. Underlying valuation assumptions in the midstream segment remain relatively consistent with the prior year with the current year’s gain attributable to increasing cash flows. At December 31, 2020, Brookfield Infrastructure carried out an assessment of the fair value of its data property, plant and equipment. A gain from revaluation of $nil (2019: $nil) was recognized in revaluation surplus in the Consolidated Statements of Comprehensive Income. The following table summarizes the carrying amount of property, plant and equipment that would have been recognized had assets been carried under the cost model. US$ MILLIONS Dec. 31, 2020 Dec. 31, 2019 Utilities $ 8,114 $ 7,776 Transport 7,548 7,574 Midstream 4,007 3,797 Data 8,330 1,043

INTANGIBLE ASSETS

INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2020
Intangible Assets [Abstract]
INTANGIBLE ASSETS	INTANGIBLE ASSETS US$ MILLIONS 2020 2019 Cost $ 13,233 $ 15,695 Accumulated amortization (1,466) (1,309) Net intangible assets $ 11,767 $ 14,386 Intangible assets are allocated to the following cash generating units: US$ MILLIONS 2020 2019 Brazilian regulated transmission operation $ 2,903 $ 3,885 North American rail operations 1,929 1,992 North American residential energy infrastructure operation 1,748 1,806 Peruvian toll roads 1,073 1,159 Chilean toll roads 825 814 Indian toll roads (1) 714 769 Indian telecom tower operation (2) 537 — U.K. telecom towers operation 491 472 U.K. port operation 292 283 Brazilian electricity transmission operation 270 401 Other (3) 985 1,047 Australian export terminal (4) — 1,758 Total $ 11,767 $ 14,386 (1) Indian toll roads include $641 million of intangible assets at our investments in Simhapuri Expressway Limited and Rayalseema Expressway Limited and $73 million at BIF India Holdings Pte Ltd. (2) Refer to Note 6, Acquisition of Businesses, for further details. (3) Other intangibles are comprised of customer contracts at our Australian port operation, Western Canadian natural gas gathering and processing operation, U.S. data center operation, Colombian natural gas transmission operation, natural gas operation in India and contracted order book at our U.K. regulated distribution operation. (4) Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details. Our intangible assets are evaluated for impairment annually or more often if events or circumstances indicate there may be impairment. Despite recent volatility observed in commodity and foreign exchange markets and the interruption to global supply chains as a result of the global pandemic, our intangible assets remain largely unaffected, with no impairment required during the year ended December 31, 2020, Our intangible assets represent long-term critical infrastructure supported by regulated or highly contracted revenues which help protect value over the long term. The intangible assets at our Brazilian regulated transmission operation relate to concession arrangements with the local energy regulator, Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (“ANP”). Total capacity is fully contracted under long-term “ship-or-pay” gas transportation agreements (“GTA”) and therefore, the business is exposed to no volume or price risk. Each GTA takes into account a return on regulatory asset base (“RAB”), and the tariffs are calculated on an inflation adjusted regulatory weighted average cost of capital (“WACC”) fixed for the GTA life. The intangible assets at Brookfield Infrastructure’s North American rail operations mainly relate to customer relationships, operating network agreements and track access rights. The business provides critical first and last mile rail services which connect large Class I railroad operators to end customers. Our North American freight revenue is diversified across numerous commodities and the business largely performed in line with expectations. Customer relationships and operating network agreements as well as trackage rights, which are long-term leases, are not expected to be negatively impacted in the long term. The intangible assets at our North American residential infrastructure operation are comprised of contractual customer relationships, customer contracts, proprietary technology and brands. The contractual customer relationships and customer contracts represent ongoing economic benefits from leasing customers and annuity-based management agreements. Proprietary technology is recognized for the development of new metering technology, which allows the business to generate revenue through its sub-metering business. Brands represent the intrinsic value customers place on the operation’s various brand names. The business generates revenues under long-term contracts with a diversified customer base across North America and is exposed to minimum volume risk. The business has continued to benefit from strong volumes and organic growth initiatives during the year ended December 31, 2020. The terms and conditions of the Peruvian toll roads concession, including tariffs that can be charged to the users and the duties to be performed by the operator, are regulated by the Municipalidad Metropolitana de Lima (“MML”) and its municipal arm, Fondo Metropolitano de Inversiones. The service concession provides the operator the right to charge a tariff to vehicles which use the road network over the life of the concession in exchange for the design, construction, improvement, maintenance and operation of the road network. Tariffs are adjusted annually for the Lima Metropolitana Consumer Price Index. The concession arrangement has an expiration date of 2043 at which point the underlying concession assets will be returned to the MML. The terms and conditions of the Chilean toll roads concession, including tariffs that can be charged to the users and the duties to be performed by the operator, are regulated by the Ministerio de Obras Publicas (“MOP”). The service concession provides the operator the right to charge a tariff to vehicles which use the road over the term of the concession in exchange for operating the road, including preserving the road based on a defined maintenance and construction schedule. Tariffs are adjusted annually for the Chilean Consumer Price Index, in addition to congestion charges which may be levied should specified traffic levels be reached. The concession arrangement has an expiration date of 2033, at which point the underlying concessions assets will be returned to the MOP. The terms and conditions of the Simhapuri Expressway (“SEL”), Rayalseema Expressway (“REPL”) and Mumbai Nasik (“MNEL”) Indian toll road concessions, including tariffs that can be charged to the users and the duties to be performed by the operator, are regulated by the National Highways Authority of India (“NHAI”). The Service Concession Agreements provides the operators the right to charge a tariff to vehicles which use the road over the term of the concession in exchange for operating the road, including preserving the road based on a defined maintenance schedule. Tariffs are revised annually for the Indian Wholesale Price Index. The Concession Arrangements have expiration dates of 2041, 2040 and 2026, respectively, for SEL, REPL and MNEL, at which point the underlying concessions assets will be returned to the NHAI. While our toll road operations have experienced reduced volumes as a result of local government imposed shutdowns during the global pandemic, we are engaged in discussions to determine if we will be compensated under the regulatory framework either through increased tariffs or extension of our concession agreement and believe that the long-term value of our concession arrangement will be not impacted. We have received positive indications that the global pandemic qualifies as an act of force majeure within our concession arrangements. The intangible asset at Brookfield Infrastructure’s Indian telecom tower operation relates primarily to the customer contract with Reliance Jio, India’s largest cellular network operator. Reliance Jio is an anchor tenant of our tower operation under a 30-year Master Service Agreement. The intangible asset at Brookfield Infrastructure’s U.K telecom tower operation primarily relates to customer contracts and related relationships. The contractual customer contracts and customer relationships represent ongoing economic benefits from leasing space on the existing portfolio of towers and distributed antenna systems. Intangible assets are amortized straight-line over the average remaining contractual period plus a reasonable expectation of long term renewals. The intangible asset at Brookfield Infrastructure’s U.K. port operation relates to a conservancy right. As a right in perpetuity issued by the Statutory Harbour Authority in the U.K., the conservancy right is classified as having an indefinite life, and is subject to an annual impairment review. The terms and conditions of the Brazilian electricity transmission concession are regulated by the Brazilian Electricity Regulatory Agency (“ANEEL”). The concession agreement grants the right to construct, maintain and operate the transmission lines, in exchange for a regulated return (“RAP”) during the concession period. Concessions are awarded for a period of 30 years and RAP is adjusted for inflation annually and updated every five years to reflect changes in third-party cost of capital. The carrying value as at December 31, 2020, of Brookfield Infrastructure’s indefinite lived intangibles is $876 million (2019: $667 million). The following table presents the change in the cost balance of intangible assets: US$ MILLIONS 2020 2019 Cost at beginning of the year $ 15,695 $ 12,515 Additions, net of disposals 102 109 Acquisitions through business combinations (1) 532 3,248 Held for sale — (1) Non-cash (disposals) additions (2) (2,118) 15 Foreign currency translation (978) (191) Cost at end of year $ 13,233 $ 15,695 (1) See Note 6, Acquisition of Businesses, for additional information. (2) Non-cash disposals primarily relate to the partial disposition of our Australian export terminal. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details. The following table presents the accumulated amortization for Brookfield Infrastructure’s intangible assets: US$ MILLIONS 2020 2019 Accumulated amortization at beginning of year $ (1,309) $ (880) Non-cash disposals (1) 216 — Disposals — 12 Amortization (458) (450) Foreign currency translation 85 9 Accumulated amortization at end of year $ (1,466) $ (1,309)

GOODWILL

GOODWILL	12 Months Ended
	Dec. 31, 2020
Intangible Assets [Abstract]
GOODWILL	GOODWILL The following table presents the carrying amount for Brookfield Infrastructure’s goodwill: US$ MILLIONS 2020 2019 Balance at beginning of the year $ 6,553 $ 3,859 Acquisitions through business combinations (1) 27 2,644 Foreign currency translation and other 54 50 Balance at end of the year $ 6,634 $ 6,553 (1) See Note 6, Acquisition of Businesses, for additional information. Goodwill is evaluated for impairment annually or more often if events or circumstances indicate there may be impairment. Impairment is determined by assessing if the carrying value of cash generating units or a group of cash generating units, including the allocated goodwill, exceeds its recoverable amount determined as the greater of the estimated fair value less costs of disposal or the value in use. During 2020, the carrying amount of each cash-generating unit was determined to not exceed its recoverable amount. Goodwill is allocated to the following cash generating units or group of cash generating units: US$ MILLIONS 2020 2019 North American rail operations (1) $ 2,126 $ 2,042 North American residential energy infrastructure operation 1,296 1,274 Western Canadian natural gas gathering and processing operation (1) 756 749 Colombian natural gas distribution operation 520 542 Brazilian regulated transmission operation 490 632 U.S. data center operation (1) 487 486 Other 959 828 Total $ 6,634 $ 6,553 (1) See Note 6, Acquisition of Businesses, for additional information.

INVESTMENT PROPERTIES

INVESTMENT PROPERTIES	12 Months Ended
	Dec. 31, 2020
Investment property [abstract]
INVESTMENT PROPERTIES	INVESTMENT PROPERTIES The following table presents the carrying amount for Brookfield Infrastructure’s investment properties: US$ MILLIONS 2020 2019 Balance at beginning of the year $ 416 $ 190 Acquisitions through business combinations (1) — 211 Additions, net of disposals 3 2 Non-cash additions — 5 Fair value adjustments 68 — Foreign currency translation 31 8 Balance at end of the year $ 518 $ 416 (1) See Note 6, Acquisition of Businesses, for additional information. Investment properties are measured at fair value on a recurring basis and the effective date of revaluation is December 31, 2020 and 2019. The fair value of our partnership’s investment properties are determined by management of our partnership with due consideration given to other relevant market conditions. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s investment property. Our partnership has classified all assets below under level 3 of the fair value hierarchy: Segment Valuation technique Significant unobservable inputs Range of inputs Transport Direct Income Capitalization Capitalization Rate 6% to 14% Data Direct Income Capitalization Capitalization Rate 6% to 8% An increase in the capitalization rate would lead to a decrease in the fair value of investment property, with the opposite impact for a decrease in the capitalization rate.

ACCOUNTS PAYABLE AND OTHER

ACCOUNTS PAYABLE AND OTHER	12 Months Ended
	Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]
ACCOUNTS PAYABLE AND OTHER	ACCOUNTS PAYABLE AND OTHER US$ MILLIONS Note 2020 2019 Current: Accounts payable $ 1,461 $ 973 Accrued liabilities 751 653 Deferred revenue (i) 256 307 Lease liabilities 206 197 Provisions (1) 176 214 Loans and notes payable 134 — Other liabilities 293 66 Total current $ 3,277 $ 2,410 Non-current: Lease liabilities $ 3,597 $ 1,606 Deferred revenue (i) 467 246 Provisions (1) 423 327 Pension liabilities (2) 315 148 Loans and notes payable 84 99 Other liabilities 311 144 Total non-current $ 5,197 $ 2,570 (1) Provisions primarily relate to decommissioning and site restoration liabilities at our Western Canadian natural gas gathering and processing operation and our Indian telecom tower operation. (2) See Note 31, Retirement Benefit Plans, for further details. Brookfield Infrastructure’s exposure to currency and liquidity risk related to trade and other payables is disclosed in Note 34, Financial Risk Management. (i) Deferred revenue Deferred revenue relates primarily to cash contributions from third parties to build or upgrade existing network capabilities at our Australian rail operation, for future natural gas and electricity connections at our U.K. regulated distribution operation, for future transportation of gas at our Indian natural gas operation, for future protection plans at our North American residential energy infrastructure operation and to build or upgrade existing networks at our U.K. telecom towers operation. The deferred revenue is recorded on receipt of cash payments and recognized as revenue as services are rendered over the life of the contracted track access, connections arrangements, gas transportation agreement, contract plans or networks.

FINANCIAL LIABILITIES

FINANCIAL LIABILITIES	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
FINANCIAL LIABILITIES	FINANCIAL LIABILITIES US$ MILLIONS 2020 2019 Current: Deferred consideration $ 136 $ 131 Interest rate swaps 116 — Foreign currency forward contracts 107 61 Other financial liabilities 337 137 Total current financial liabilities $ 696 $ 329 Non-current: Deferred consideration (1) $ 1,022 $ 1,115 Interest rate swaps 341 113 Foreign currency forward contracts 138 36 Inflation swaps 46 71 Other financial liabilities 1,131 509 Total non-current financial liabilities $ 2,678 $ 1,844 (1) Deferred consideration primarily relates to the April 4, 2017 acquisition our Brazilian regulated gas transmission operation. The deferred consideration is denominated in U.S. dollars and accrues interest at 3.35% compounded annually. The financial liability is measured at amortized cost and is payable on the fifth anniversary of the date of acquisition.

BORROWINGS

BORROWINGS	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
BORROWINGS	BORROWINGS (a) Corporate Borrowings Brookfield Infrastructure has a $1.975 billion senior unsecured revolving credit facility used for general working capital including acquisitions. The $1.975 billion is available on a revolving basis for the full term of the facility. All amounts outstanding under this facility will be repayable on June 28, 2024. All obligations of Brookfield Infrastructure under the facility are guaranteed by our partnership. Loans under this facility accrue interest at a floating rate based on LIBOR plus 1.2%. Brookfield Infrastructure is required to pay an unused commitment fee under the facility of 13 basis points per annum. As at December 31, 2020, draws on the credit facility were $1,131 million (2019: $820 million) and $63 million of letters of credit were issued (2019: $54 million). Maturity Annual Rate Currency 2020 2019 Corporate revolving credit facility June 28, 2024 LIBOR plus 1.2% US$ $ 1,131 $ 820 Corporate revolving credit facility April 14, 2022 LIBOR plus 1.2% US$ — — Medium Term Notes (1) : Non-Current: Public - Canadian March 11, 2022 3.5% C$ — 346 Public - Canadian February 22, 2024 3.3% C$ 236 231 Public - Canadian February 22, 2024 3.3% C$ 314 308 Public - Canadian September 11, 2028 4.2% C$ 550 384 Public - Canadian October 9, 2029 3.4% C$ 550 386 Public - Canadian September 1, 2032 2.9% C$ 392 — 3,173 2,475 Deferred financing costs and other (15) — Total $ 3,158 $ 2,475 (1) See Note 20, Subsidiary Public Issuers, for further details. On February 24, 2021, Brookfield Infrastructure established a U.S. commercial paper program (“the Program”) under which a subsidiary of our partnership may issue unsecured commercial paper notes (“Notes”) up to a maximum aggregate amount outstanding at any time of $500 million. The proceeds of the commercial paper issuances will be used for general corporate purposes. Our subsidiary began issuing Notes under the Program during March 2021. On September 1, 2020, Brookfield Infrastructure Finance ULC issued C$500 million of medium-term notes maturing September 1, 2032 with a coupon of 2.9% per annum. On October 6, 2020, the proceeds were used to early redeem C$450 million of medium-term notes maturing March 11, 2022. On April 14, 2020, the partnership secured an incremental $1.0 billion syndicated revolving credit facility. The facility was secured to fund new investment opportunities that may arise while other sources of capital, including asset sales, are delayed. The facility matures on April 14, 2022 and all amounts not previously repaid will be due on such date. All obligations under the facility are guaranteed by our partnership and its subsidiary, BIPC Holdings Inc. Loans under this facility accrue interest at LIBOR plus 2.1% with an annual unused commitment fee of 42 basis points during the period prior to April 14, 2021, and LIBOR plus 2.2% thereafter with an annual unused commitment fee of 44 basis points. As of December 31, 2020, the balance remains undrawn. On April 7, 2020, Brookfield Infrastructure Finance ULC, a wholly owned subsidiary of Brookfield Infrastructure, issued C$400 million of medium-term notes. C$200 million of the medium-term notes mature September 11, 2028 and have a coupon rate of 4.2% per annum. These notes were issued at a premium with an effective interest rate of 4.1% per annum. The remaining C$200 million medium term notes mature on October 9, 2029 and have a coupon rate of 3.4% per annum. These notes were issued at a discount with an effective interest rate of 4.1%. On October 7, 2019, Brookfield Infrastructure Finance ULC issued C$500 million of medium-term notes maturing October 9, 2029 with a coupon of 3.4%. On November 6, 2019, the proceeds were used to early redeem C$375 million of medium-term notes maturing October 30, 2020. Brookfield Infrastructure has entered into a $500 million revolving credit facility with Brookfield to provide additional liquidity for general corporate purposes and capital expenditures, if required. The revolving credit facility has an effective date of February 8, 2018 and automatically renews for four consecutive one year terms on the first, second, third and fourth anniversary of such effective date, which would result in it ultimately maturing on February 8, 2023. Brookfield has the option to terminate the agreement prior to February 8 each year by providing Brookfield Infrastructure with written notice. All obligations of Brookfield Infrastructure under the facility were guaranteed by our partnership. Loans under this facility accrued interest on LIBOR plus 1.8% and no commitment fees were incurred for any undrawn balance. As of December 31, 2020, there were $nil (2019: $nil) of borrowings outstanding. The increase in corporate borrowings of $698 million during the year ended December 31, 2020 is attributable to the issuance of C$900 million of medium-term notes, the impact of a stronger Canadian dollar relative to the U.S. dollar and net draws of $311 million on the corporate revolving credit facility. These increases were partially offset by the early redemption of C$450 million medium-term notes. (b) Non-Recourse Borrowings The current and non-current balances of non-recourse borrowings are as follows: US$ MILLIONS 2020 2019 Current $ 1,551 $ 1,381 Non-current 18,469 17,163 Total $ 20,020 $ 18,544 Non-recourse borrowings have increased by $1.5 billion since year-end. The increase is attributable to net borrowings of $3.5 billion from our recent acquisition of a telecom tower operation in India and draws to fund growth initiatives. These increases were partially offset by the partial disposition of our Australian export terminal and a decrease in foreign denominated debt relative to the U.S. dollar during the year ended December 31, 2020. Principal repayments on non-recourse borrowings due over the next five years and thereafter are as follows: US$ MILLIONS Utilities Transport Midstream Data Total 2021 $ 486 $ 431 $ 10 $ 125 $ 1,052 2022 351 454 11 65 881 2023 1,676 330 510 251 2,767 2024 1,370 391 10 244 2,015 2025 783 928 1,088 755 3,554 Thereafter 3,434 4,146 524 1,804 9,908 Total principal repayments (1) 8,100 6,680 2,153 3,244 20,177 Deferred financing costs and other (33) (45) (42) (37) (157) Total - Dec. 31, 2020 $ 8,067 $ 6,635 $ 2,111 $ 3,207 $ 20,020 Total - Dec. 31, 2019 $ 7,213 $ 8,210 $ 2,198 $ 923 $ 18,544 (1) As of December 31, 2020, approximately $540 million of debt was in breach of asset-level financial covenants. We anticipate being able to refinance or obtain waivers from our financial institutions and accordingly presented the debt in the contractually obligated year of maturity. The weighted average interest rates of non-recourse borrowings are as follows: US$ MILLIONS Utilities Transport Midstream Data Total Dec. 31, 2020 4 % 5 % 6 % 6 % 5 % Dec. 31, 2019 5 % 5 % 6 % 6 % 5 % Principal repayments on non-recourse borrowings in their local currency are as follows: US$ MILLIONS, except as noted Dec. 31, 2020 Local Currency Dec. 31, 2019 Local Currency U.S. dollars $ 7,457 USD 7,457 $ 7,801 USD $ 7,801 Indian rupees 3,760 INR 274,457 1,427 INR 101,929 British pounds 2,941 GBP 2,151 2,411 GBP 1,819 Canadian dollars 2,400 CAD 3,056 2,473 CAD 3,212 Chilean Unidad de Fomento (1) 1,201 UF 29 1,099 UF 29 Brazilian real 1,161 BRL 6,035 1,489 BRL 6,002 Colombian pesos 418 COP 1,430,115 342 COP 1,124,325 Peruvian soles 417 PEN 1,511 452 PEN 1,497 Australian dollars 320 AUD 416 1,010 AUD 1,439 Euro 59 EUR 48 — EUR — New Zealand dollars 43 NZD 60 40 NZD 59 (1) Chilean Unidad de Fomento is an inflation adjusted unit of account indexed to the Chilean Peso. (c) Supplemental Information Details of the “Changes in liabilities from financing activities”, including both changes arising from cash flows and non-cash changes are as follows: US$ MILLIONS 2019 Cash Flows Acquisitions/ Dispositions (1) Foreign Exchange Movement and Other 2020 Corporate borrowings $ 2,475 $ 629 $ — $ 54 $ 3,158 Non-recourse borrowings 18,544 1,119 689 (332) 20,020 (1) Refer to Note 6, Acquisition of Businesses, and Note 5, Disposition of Businesses, for further details.

SUBSIDIARY PUBLIC ISSUERS

SUBSIDIARY PUBLIC ISSUERS	12 Months Ended
	Dec. 31, 2020
Subsidiary Public Issuer [Abstract]
SUBSIDIARY PUBLIC ISSUERS	SUBSIDIARY PUBLIC ISSUERS An indenture dated as of October 10, 2012 between certain wholly-owned subsidiaries of our partnership, Brookfield Infrastructure Finance ULC, Brookfield Infrastructure Finance LLC, Brookfield Infrastructure Finance Pty Ltd and Brookfield Infrastructure Finance Limited (collectively, the “Debt Issuers”), and Computershare Trust Company of Canada, as supplemented and amended from time to time (“Indenture”) provides for the issuance of one or more series of unsecured notes of the Debt Issuers. On September 1, 2020, the Debt Issuers issued C$500 million of medium-term notes under the Indenture maturing September 1, 2032 in the Canadian bond market with a coupon of 2.9%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 3.9%. On October 6, 2020, the proceeds were used to early redeem C$450 million of medium-term notes maturing March 11, 2022. On April 7, 2020, the Debt Issuers issued C$200 million of medium-term notes under the Indenture maturing September 11, 2028 in the Canadian bond market with a coupon of 4.2%. The principal balance was hedged to U.S. dollars using foreign exchange contracts. On April 7, 2020, the Debt Issuers issued C$200 million of medium-term notes under the Indenture maturing October 9, 2029 in the Canadian bond market with a coupon of 3.4%. The principal balance was hedged to U.S. dollars using foreign exchange contracts. On October 7, 2019, the Debt Issuers issued C$500 million of medium-term notes under the Indenture maturing October 9, 2029 in the Canadian bond market with a coupon of 3.4%. Our partnership swapped C$92 million of the total issuance to U.S. dollars on a matched maturity basis at an all-in rate of 3.5% and the remaining principal balance of the issuance was subsequently hedged using foreign exchange contracts. On November 6, 2019, the proceeds were used to early redeem C$375 million of medium-term notes maturing October 30, 2020. On September 10, 2018, the Debt Issuers issued C$500 million of medium-term notes under the Indenture maturing September 11, 2028 in the Canadian bond market with a coupon of 4.2%, which was swapped into U.S. dollars on a matched maturity basis at an all-in rate of 4.7%. As they matured, the Debt Issuers repaid C$125 million of medium-term notes on October 30, 2018. These notes are fully and unconditionally guaranteed by our partnership and its subsidiaries, Brookfield Infrastructure L.P. (the “Holding LP”), Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation, BIP Bermuda Holdings I Limited (collectively, the “BIP Guarantors”) and BIPC Holdings Inc. (“BIPC Holdings”). The BIP Guarantors will also fully and unconditionally guarantee the payment obligations of Brookfield Infrastructure Preferred Equity Inc. (“Pref Finco” and collectively with the Debt Issuers, the “Fincos”) in respect of any Class A preference shares issued to the public by the Pref Finco, if and when issued. A base shelf prospectus of BIP Investment Corporation (“BIPIC”) dated as of December 11, 2020 provides for the issuance of one or more series of senior preferred shares of BIPIC. The BIP Guarantors and BIPC Holdings will fully and unconditionally guarantee the payment obligations of BIPIC in respect of any senior preferred shares issued by BIPIC under the prospectus. Each of the Fincos and BIPIC are subsidiaries of our partnership. In the tables below, information relating to the Fincos has been combined. The Fincos have not guaranteed the obligations of BIPIC, nor has BIPIC guaranteed the obligations of the Fincos. On February 5, 2019, BIPIC issued 4 million Series 1 Senior Preferred Shares at C$25 per share with a quarterly fixed dividend at a rate of 5.85% annually for the initial period ending March 31, 2024. In total, C$100 million or $75 million of gross proceeds were raised, $2 million in underwriting costs were incurred and less than $1 million in issuance costs were incurred. The preferred shares are retractable at the option of the holders and are therefore classified as liabilities. BIPC Holdings has also fully and unconditionally guaranteed the payment obligations of the partnership in respect of certain of the partnership’s currently outstanding cumulative class A preferred limited partnership units and may guarantee the payment obligations of the partnership in respect of additional cumulative class A preferred limited partnership units issued to the public, if and when issued. The following tables set forth consolidated summary financial information for our partnership, the Fincos, BIPIC and BIPC Holdings: For the year ended December 31, 2020 Our partnership (2) The Fincos BIPIC BIPC Holdings Subsidiaries of our partnership other than the Fincos, BIPIC, and BIPC Holdings (3) Consolidating adjustments (4) Our partnership Revenues $ — $ — $ — $ — $ — $ 8,885 $ 8,885 Net income attributable to partnership (1) 141 — — 5 389 (141) 394 For the year ended December 31, 2019 Revenues $ — $ — $ — $ — $ — $ 6,597 $ 6,597 Net income attributable to partnership (1) 52 — — — 233 (52) 233 For the year ended December 31, 2018 Revenues $ — $ — $ — $ — $ — $ 4,652 $ 4,652 Net income attributable to partnership (1) 192 — — — 410 (192) 410 As at December 31, 2020 Current assets $ — $ — $ — $ — $ — $ 3,711 $ 3,711 Non-current assets 5,363 — 944 2,238 7,232 41,843 57,620 Current liabilities — — 77 — — 5,447 5,524 Non-current liabilities — 2,027 — 591 — 31,516 34,134 Non-controlling interests Redeemable Partnership Units held by Brookfield — — — — — 1,687 1,687 BIPC exchangeable shares — — — — — 638 638 Exchange LP Units — — — — — 12 12 In operating subsidiaries — — — — — 13,954 13,954 Preferred unitholders — — — — — 1,130 1,130 As at December 31, 2019 Current assets $ — $ — $ — $ — $ — $ 5,841 $ 5,841 Non-current assets 5,983 — 889 — 8,905 34,690 50,467 Current liabilities — — 75 — — 5,364 5,439 Non-current liabilities — 1,655 — — — 27,037 28,692 Non-controlling interests Redeemable Partnership Units held by Brookfield — — — — — 2,039 2,039 Exchange LP Units — — — — — 18 18 In operating subsidiaries — — — — — 14,113 14,113 Preferred unitholders — — — — — 935 935 (1) Includes net income attributable to non-controlling interest – Redeemable Partnership Units held by Brookfield, Exchange LP units, BIPC exchangeable shares, general partner and limited partners. (2) Includes investments in all subsidiaries of our partnership under the equity method. (3) Includes investments in all other subsidiaries of the Holding LP, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited under the equity method. (4) Includes elimination of intercompany transactions and balances necessary to present our partnership on a consolidated basis.

PREFERRED SHARES

PREFERRED SHARES	12 Months Ended
	Dec. 31, 2020
Share Capital, Reserves And Other Equity Interest [Abstract]
PREFERRED SHARES	PREFERRED SHARESAs at December 31, 2020, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited (wholly owned subsidiaries of Brookfield Infrastructure) have issued 196,000, 1 and 400,000 preferred shares, respectively, to wholly owned subsidiaries of Brookfield, for proceeds of $5 million, $5 million and $10 million, respectively. Each preferred share is non-voting and is redeemable at $25 per share except in the case of the preferred share issued by Brookfield Infrastructure US Holdings I Corporation, which is redeemable for $5 million. Each of these preferred shares is redeemable, together with any accrued and unpaid dividends, at the option of the issuer on or after the tenth anniversary of the date of issue, subject to certain restrictions. Further, these preferred shares entitle the holders thereof to a fixed cumulative 6% preferential cash dividend payable quarterly as and when declared by the issuer’s board of directors. At December 31, 2020, there were no dividends in arrears (2019: $nil).

INTEREST EXPENSE

INTEREST EXPENSE	12 Months Ended
	Dec. 31, 2020
Analysis of income and expense [abstract]
INTEREST EXPENSE	INTEREST EXPENSE US$ MILLIONS 2020 2019 2018 Interest on corporate facility $ 19 $ 20 $ 4 Interest on corporate debt 76 63 56 Interest on non-recourse borrowings 944 738 483 Other financing fees (1) 140 83 12 $ 1,179 $ 904 $ 555 (1) Other financing fees primarily relate to interest expense associated with leases in connection with IFRS 16.

PAYROLL EXPENSE

PAYROLL EXPENSE	12 Months Ended
	Dec. 31, 2020
Analysis of income and expense [abstract]
PAYROLL EXPENSE	PAYROLL EXPENSE Our partnership has no key employees; therefore, Brookfield Infrastructure does not remunerate key management personnel. Key decision makers of Brookfield Infrastructure are all employees of the ultimate parent company who provide management services under Brookfield Infrastructure’s Master Services Agreement. Details of the management fees paid are disclosed in Note 32, Related Party Transactions. Throughout the year, the General Partner in its capacity as our partnership’s general partner, incurs director fees, a portion of which are charged to our partnership in accordance with the limited partnership agreement. For the year ended December 31, 2020, payroll expense across all of Brookfield Infrastructure’s subsidiaries was $1,113 million, inclusive of benefits (2019: $704 million, 2018: $588 million).

NON-WHOLLY OWNED SUBSIDIARIES

NON-WHOLLY OWNED SUBSIDIARIES	12 Months Ended
	Dec. 31, 2020
Interests In Other Entities [Abstract]
NON-WHOLLY OWNED SUBSIDIARIES	NON-WHOLLY OWNED SUBSIDIARIES The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Financial Position: As of December 31, 2020 US$ MILLIONS Current Non-Current Current Non-Current Non-Controlling Interest in Operating Subsidiaries Partnership Capital (1) Utilities U.K. regulated distribution operation $ 181 $ 5,264 $ 333 $ 3,241 $ 367 $ 1,504 Brazilian regulated gas transmission operation 405 3,494 203 2,772 783 141 Colombian natural gas distribution operation 220 1,256 248 478 636 114 Brazilian electricity transmission operation 15 320 11 196 89 39 Canadian district energy operation 28 1,260 147 567 429 145 U.S. district energy operation 38 1,097 78 768 163 126 North American residential energy infrastructure operation 210 4,215 436 2,321 1,174 494 Indian gas transmission operation 94 2,172 131 1,308 781 46 Transport North American rail operation 504 9,569 699 4,898 4,032 444 U.K. port operation 62 1,105 45 735 157 230 Australian port operation 151 863 131 393 352 138 Chilean toll roads 126 835 125 1,148 (335) 23 Peruvian toll roads 105 1,247 438 212 591 111 Indian toll roads (2) 87 808 177 426 203 89 Midstream North American gas storage operation 170 1,433 67 658 544 334 Western Canadian natural gas gathering and processing operation 125 3,964 131 2,072 1,348 538 Data U.S. data center operation 67 1,634 95 1,138 334 134 Australian data center operation 12 311 127 7 135 54 U.K. telecom towers operation 32 896 332 327 203 66 Indian telecom towers operation 392 7,998 493 5,392 1,917 588 Corporate Holding LP and other 589 172 870 3,423 52 (3,584) Total $ 3,613 $ 49,913 $ 5,317 $ 32,480 $ 13,955 $ 1,774 As of December 31, 2019 US$ MILLIONS Current Non-Current Current Non-Current Non-Controlling Partnership Capital (1) Utilities U.K. regulated distribution operation $ 159 $ 4,653 $ 294 $ 2,888 $ 318 $ 1,312 Colombian regulated distribution operation 759 — 427 — 274 58 Brazilian regulated transmission operation 435 4,606 199 3,195 1,305 342 Colombian natural gas distribution operation 214 1,166 299 314 684 83 Brazilian electricity transmission operation 21 401 12 252 110 48 Canadian district energy operation 29 974 47 506 337 113 U.S. district energy operation 37 964 41 747 118 95 North American residential energy infrastructure operation 171 3,997 337 1,925 1,341 565 Indian gas transmission operation 155 2,272 181 910 1,157 179 Transport Australian export terminal (3) 139 1,994 347 1,688 34 64 North American rail operation 2,150 9,392 1,409 4,889 4,747 497 U.K. port operation 47 934 78 370 218 315 Australian port operation 126 927 124 488 317 124 Chilean toll roads 95 821 67 1,112 (320) 57 Peruvian toll roads 122 1,337 19 683 638 119 Indian toll roads 75 868 83 570 203 87 Midstream North American gas storage 200 1,449 112 661 543 333 Western Canadian natural gas gathering and processing operation 119 3,721 147 1,845 1,320 528 Data U.S. data center operation 105 1,665 112 1,130 376 152 Australian data center operation 10 280 5 112 124 49 U.K. telecom towers operation 26 874 190 419 219 72 Corporate Holding LP and other 529 111 735 2,480 50 (2,625) Total $ 5,723 $ 43,406 $ 5,265 $ 27,184 $ 14,113 $ 2,567 (1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, non-controlling interest—BIPC exchangeable shares, non-controlling interest—Exchange LP Units, general partner and limited partners. (2) Indian toll roads include our investments in BIF India Holdings Pte Ltd, Simhapuri Expressway Limited and Rayalseema Expressway Private Limited. (3) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian export terminal. Upon partial disposition, the operation ceased to meet the definition of a non-wholly owned subsidiary. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details. The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Operating Results: Year ended December 31, 2020 Attributable to non-controlling interest Attributable to US$ MILLIONS Revenue Net Other Net Other Utilities U.K. regulated distribution operation $ 488 $ 11 $ 42 $ 46 $ 167 Colombian regulated distribution operation (1) 6 2 156 — (6) Brazilian regulated transmission operation 942 309 (399) 116 (152) Colombian natural gas distribution operation 793 39 34 7 13 Brazilian electricity transmission operation 40 9 (25) 4 (11) Canadian district energy operation 127 5 115 2 39 U.S. district energy operation 137 (14) 58 (9) 38 North American residential energy infrastructure operation 1,274 70 (32) 29 (14) Indian gas transmission operation 268 (61) (23) (19) (7) Transport Australian export terminal (3) 297 163 35 54 16 North American rail operation 1,974 86 (153) 11 (16) U.K. port operation 235 22 16 31 22 Australian port operation 381 (29) 40 (10) 14 Chilean toll roads 116 (21) (21) (6) 2 Peruvian toll roads 81 7 (54) 1 (11) Indian toll roads (2) 111 (24) (4) (8) (2) Midstream (3) North American gas storage operation 143 (10) 10 (7) 6 Western Canadian natural gas gathering and processing operation 501 29 (1) 12 (1) Data U.S. data center operation 273 (32) (10) (13) (4) Australian data center operation 24 4 12 1 5 U.K. telecom towers operation 51 (3) 5 (1) 2 Indian telecom towers operation 360 5 69 3 14 Corporate Holding LP and other 9 (56) — (7) 250 Total $ 8,631 $ 511 $ (130) $ 237 $ 364 Year ended December 31, 2019 Attributable to non-controlling interest Attributable to US$ MILLIONS Revenue Net Other Net Other Utilities U.K. regulated distribution operation $ 478 $ 24 $ 71 $ 103 $ 278 Colombian regulated distribution operation (1) 179 10 (9) 2 (2) Brazilian regulated transmission operation 1,141 349 (83) 132 (33) Colombian natural gas distribution operation 874 51 (4) 7 — Brazilian transmission operation 2 15 (2) 7 (1) Canadian district energy operation 121 6 85 2 29 U.S. district energy operation 158 (14) 49 (9) 32 North American residential energy infrastructure operation 956 3 63 2 26 Indian gas transmission operation 266 (39) (33) (12) (10) Transport Australian export terminal (3) 308 15 (3) 43 (8) North American Rail Operation — — (10) — (1) U.K. port operation 197 4 19 7 27 Australian port operation 462 (24) (1) (7) — Chilean toll roads 162 — 27 2 16 Peruvian toll roads 107 5 10 1 2 Indian toll roads (2) 130 (19) (6) (9) (3) Midstream North American gas storage operation 143 12 52 9 32 Western Canadian natural gas gathering and processing operation 256 35 31 14 12 Data U.S. data center operation 294 (22) (10) (7) (4) Australian data center operation 20 6 (3) 2 (1) U.K. telecom towers operation — — (2) — (1) Corporate Holding LP and other 25 (5) — (295) (26) Total $ 6,279 $ 412 $ 241 $ (6) $ 364 Year ended December 31, 2018 Attributable to non-controlling interest Attributable to US$ MILLIONS Revenue Net Other Net Other Utilities U.K. regulated distribution operation $ 449 $ 22 $ 19 $ 99 $ 86 Colombian regulated distribution operation (1) 177 15 (11) 3 (2) Brazilian regulated transmission operation 1,112 357 (469) 139 (190) Colombian natural gas distribution operation 516 34 (91) 7 (14) Canadian district energy operation 118 7 32 3 11 U.S. district energy operation 149 (13) 35 (8) 23 North American residential energy infrastructure business 191 4 (73) 1 (30) Transport Australian export terminal (3) 307 14 (6) 34 (16) U.K. port operation 205 12 3 19 4 Australian port operation 522 (6) (33) (3) (11) Chilean toll roads 168 (1) (7) (1) (7) Peruvian toll roads 92 3 (25) 1 (5) Indian toll roads (2) 61 (12) 2 (6) (1) Midstream North American gas storage operation 150 (16) 22 (12) 15 Western Canadian natural gas gathering and processing business 61 3 (53) 1 (21) Data U.S. data center operation — — (1) — — Corporate Holding LP and other 23 (26) (1) 108 44 Total $ 4,301 $ 397 $ (657) $ 385 $ (114) (1) Refer to Note 5 , Disposition of Businesses, for further details. (2) Indian toll roads include our investments in BIF India Holdings Pte Ltd, Simhapuri Expressway Limited and Rayalseema Expressway Private Limited. (3) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian export terminal. Upon partial disposition, the operation ceased to meet the definition of a non-wholly owned subsidiary. The balance in the tables above reflect the period up until the date of partial disposition. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details. The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Cash Flows: Cash Flow Activities Year ended December 31, 2020 Year ended December 31, 2019 US$ MILLIONS Operating Investing Financing Operating Investing Financing Utilities U.K. regulated distribution operation $ 241 $ (372) $ 133 $ 271 $ (416) $ 147 Colombian regulated distribution operation (1) 2 — (2) 26 (24) (4) Brazilian regulated transmission operation 634 (34) (588) 839 (21) (702) Colombian natural gas distribution operation 89 (35) (55) 72 (38) (73) Brazilian electricity transmission operation 13 — (14) 22 (4) (6) Canadian district energy operation 42 (97) 55 53 (68) 14 U.S. district energy operation 51 (50) — 22 (29) 2 North American residential energy infrastructure operation (42) (5) 45 128 (228) 87 Indian gas transmission operation 136 (14) (117) 208 (1,950) 1,746 Transport Australian export terminal (3) 68 (27) (57) 91 (23) (55) North American rail operation 616 (24) (606) — (6,460) 6,578 U.K. port operation 42 (25) (11) 27 (43) 9 Australian port operation 28 (32) 26 52 (45) (10) Chilean toll roads 49 (1) (34) 62 (2) (55) Peruvian toll roads 18 (22) — 47 (39) — Indian toll roads (2) 11 (18) 19 7 (9) (29) Midstream North American gas storage operation 68 12 (53) 83 (10) (63) Western Canadian natural gas gathering and processing operation 156 (299) 114 92 (1,396) 1,339 Data U.S. data center operation 77 (16) (63) 51 (6) (35) Australian data center operation 7 (3) (3) — (277) 286 U.K. telecom towers operation 27 (20) (9) 3 (280) 289 Indian telecom towers operation 245 (3,451) 3,331 — — — Corporate Holding LP and other (182) (4) 89 (46) 243 (128) Total $ 2,396 $ (4,537) $ 2,200 $ 2,110 $ (11,125) $ 9,337 Cash Flow Activities Year ended December 31, 2018 US$ MILLIONS Operating Investing Financing Utilities U.K. regulated distribution operation $ 226 $ (413) $ 179 Colombian regulated distribution operation (1) 11 (26) — Brazilian regulated transmission operation 868 (26) (792) Colombian natural gas distribution operation 94 (217) 205 Canadian district energy operation 39 (42) (45) U.S. district energy operation 24 (16) (18) North American residential energy infrastructure business 16 (2,182) 2,188 Transport Australian export terminal (3) 85 (21) (63) U.K. port operation 27 (17) (8) Australian port operation 42 (68) 22 Chilean toll roads 74 (1) (82) Peruvian toll roads 91 (33) — Indian toll roads (2) 18 (184) 209 Midstream North American gas storage operation — (8) 7 Western Canadian natural gas gathering and processing business 48 (1,923) 1,910 Data U.S. data center operation (1) (1,103) 1,118 Corporate Holding LP and other (417) 794 (379) Total $ 1,245 $ (5,486) $ 4,451 (1) Refer to Note 5 , Disposition of Businesses, for further details. (2) Indian toll roads include our investments in BIF India Holdings Pte Ltd, Simhapuri Expressway Limited and Rayalseema Expressway Private Limited. (3) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian export terminal. Upon partial disposition, the operation ceased to meet the definition of a non-wholly owned subsidiary. The balance in the tables above reflect the period up until the date of partial disposition. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details.

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2020
Income Taxes [Abstract]
Income Taxes	INCOME TAXES Our partnership is a flow through entity for tax purposes and as such is not subject to taxation. However, income taxes are recognized for the amount of taxes payable by the partnership’s corporate subsidiaries and for the impact of deferred tax assets and liabilities related to such subsidiaries. (a) Deferred Income Tax Balances The sources of deferred income tax balances are as follows: As of December 31, US$ MILLIONS 2020 2019 Deferred income tax assets Tax losses carried forward $ 1,002 $ 397 Financial instruments and other 408 364 $ 1,410 $ 761 Deferred income tax liabilities Property, plant and equipment $ (3,367) $ (2,541) Intangible assets (2,458) (2,714) Investment in associates and investment properties (73) (14) $ (5,898) $ (5,269) Net deferred income tax liabilities $ (4,488) $ (4,508) Reflected in the Consolidated Statements of Financial Position as follows: Deferred income tax assets $ 124 $ 112 Deferred income tax liabilities (4,612) (4,620) Net deferred income tax liabilities $ (4,488) $ (4,508) The deferred tax asset related to losses available for carry forward includes $80 million (2019: $67 million) of tax benefits that have been recognized based on projections of future taxable profits. In addition, we also consider tax planning opportunities that will create taxable income in the period in which the unused tax losses can be utilized. The sources of deferred income tax balances and movements are as follows: Recognized in US$ MILLIONS Jan. 1, 2020 Net Income Other Comprehensive Income Other (1) Acquisitions/ Dispositions Dec. 31, 2020 Deferred income tax assets related to non-capital losses and capital losses $ 397 $ 506 $ — $ 146 $ (50) $ 999 Deferred income tax liabilities related to differences in tax and book basis, net (4,905) (560) (125) (126) 229 (5,487) Net deferred income tax liabilities $ (4,508) $ (54) $ (125) $ 20 $ 179 $ (4,488) Recognized in US$ MILLIONS Jan. 1, 2019 Net Income Other Comprehensive Income Other (1) Acquisitions/ Dispositions Dec. 31, 2019 Deferred income tax assets related to non-capital losses and capital losses $ 394 $ 40 $ — $ (22) $ (15) $ 397 Deferred income tax liabilities related to differences in tax and book basis, net (3,740) (68) (142) 54 (1,009) (4,905) Net deferred income tax liabilities $ (3,346) $ (28) $ (142) $ 32 $ (1,024) $ (4,508) (1) Other items relates to foreign exchange as deferred income taxes are calculated based on the functional currency of each operating entity. A deferred tax asset is not recognized in respect of deductible temporary differences of $143 million (2019: nil), unused capital losses of $143 million (2019: $332 million) and unused non-capital losses of $963 million (2019: $658 million). Of the total unrecognized tax asset of $1,249 million (2019: $990 million), the deductible temporary differences of $143 million (2019: nil) and unused capital losses of $143 million (2019: $332 million) do not expire. The following table details the expiry date, if applicable, of the non-capital losses: Year of Expiration US$ MILLIONS 2021 2022 2023 2024 2025 Beyond Do not expire Total As of December 31, 2020 $ 36 $ 37 $ 18 $ 7 $ 5 $ 287 $ 573 $ 963 As of December 31, 2019 5 36 38 29 4 223 323 658 (b) Income Tax Recognized in Profit or Loss The major components of income tax expense include the following: For the year ended December 31, US$ MILLIONS 2020 2019 2018 Tax expense comprises: Current income tax expense $ 237 $ 250 $ 318 Deferred income tax (recovery) expense Origination and reversal of temporary differences (37) 29 53 Changes in tax rates or the imposition of new taxes 41 (20) (11) Previously unrecognized deferred taxes 50 19 4 Total income tax expense $ 291 $ 278 $ 364 Net income before income tax expense reconciles to income tax expense as follows: Net income before income tax $ 1,195 $ 928 $ 1,170 Income tax expense calculated at the domestic rates applicable to profits in the country concerned 431 304 275 Change in substantively enacted tax rates 41 (20) (11) International operations subject to different tax rates (21) (6) (17) Taxable income attributable to non-controlling interests (91) (62) (35) Portion of gains subject to different tax rates (117) 34 141 Deferred tax assets not recognized 50 19 4 Permanent differences and other (2) 9 7 Income tax expense recognized in profit or loss $ 291 $ 278 $ 364 As the partnership is not subject to tax, the above reconciliation has been prepared using a composite statutory rate for jurisdictions where Brookfield Infrastructure’s subsidiaries operate. The composite rate has decreased due to changes in the related operating income in the various subsidiaries and changes in local statutory rates. The partnership has approximately $15 million (2019: $2,441 million) of temporary differences associated with investments in subsidiaries, and associates for which no deferred income taxes have been provided. (c) Income Tax Recognized Directly in Other Comprehensive Income US$ MILLIONS 2020 2019 2018 Deferred income tax arising on income and expenses recognized in other comprehensive income: Revaluation of property, plant and equipment $ (219) $ (148) $ (95) Cash flow hedges 63 3 3 Pension plan actuarial changes 31 3 (5) Total income tax expense recognized directly in other comprehensive income $ (125) $ (142) $ (97)

PARTNERSHIP CAPITAL

PARTNERSHIP CAPITAL	12 Months Ended
	Dec. 31, 2020
Equity [abstract]
PARTNERSHIP CAPITAL	PARTNERSHIP CAPITAL As at December 31, 2020, our partnership’s capital structure was comprised of three classes of partnership units: units, preferred units and general partnership units. Units entitle the holder to their proportionate share of distributions. Preferred units entitle the holder to cumulative preferential cash distributions in accordance with their terms. General partnership units entitle the holder the right to govern the financial and operating policies of our partnership. The Holding LP’s capital structure is composed of four classes of partnership units: Special General Partner Units, Holding LP Class A Preferred Units, Managing General Partner Units and Redeemable Partnership Units held by Brookfield. In its capacity as the holder of the Special General Partner Units of the Holding LP, the special general partner is entitled to incentive distribution rights which are based on the amount by which quarterly distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed specified target levels. To the extent distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed $0.1827 per quarter, the incentive distribution rights entitle the special general partner to 15% of incremental distributions above this threshold. To the extent that distributions on the Holding LP’s units (other than Holding LP Class A Preferred Units) exceed $0.198 per unit, the incentive distribution rights entitle the special general partner to 25% of incremental distributions above this threshold. During the year, the Holding LP paid incentive distributions of $183 million (2019: $158 million, 2018: $136 million). Prior to the special distribution, the above thresholds of $0.1827 and $0.198 were $0.203 and $0.22, respectively. The Holding LP has issued 122 million Redeemable Partnership Units to Brookfield, which may, at the request of the holder, require the Holding LP to redeem the Redeemable Partnership Units for cash in an amount equal to the market value of our units. This right is subject to our partnership’s right of first refusal which entitles it, at its sole discretion, to elect to acquire any Redeemable Partnership Units so presented to the Holding LP in exchange for one of our partnership’s units (subject to certain customary adjustments). Both the units issued by our partnership and the Redeemable Partnership Units issued by the Holding LP have the same economic attributes in all respects, except for the redemption right described above. The Redeemable Partnership Units participate in earnings and distributions on a per Redeemable Partnership Unit basis equivalent to the per unit participation of the units of our partnership. Our partnership reflects the Redeemable Partnership Units issued to Brookfield by the Holding LP as non-controlling interest—Redeemable Partnership Units held by Brookfield. (a) Special and Limited Partnership Capital Special General Limited Total UNITS MILLIONS 2020 2019 2018 2020 2019 2018 2020 2019 2018 Opening balance 1.6 1.6 1.6 293.5 277.3 276.6 295.1 278.9 278.2 Issued for cash — — — 0.2 13.8 0.3 0.2 13.8 0.3 Conversion from Exchange LP Units — — — 0.3 3.2 1.3 0.3 3.2 1.3 Conversion from BIPC exchangeable shares — — — 1.4 — — 1.4 — — Repurchased and cancelled — — — — (0.8) (0.9) — (0.8) (0.9) Ending balance 1.6 1.6 1.6 295.4 293.5 277.3 297.0 295.1 278.9 Special General Partner Limited Partners Total US$ MILLIONS 2020 2019 2018 2020 2019 2018 2020 2019 2018 Opening balance $ 19 $ 19 $ 19 $ 5,495 $ 4,911 $ 4,907 $ 5,514 $ 4,930 $ 4,926 Unit issuance — — — 9 559 14 9 559 14 Conversion from Exchange LP Units — — — 3 53 20 3 53 20 Conversion from BIPC exchangeable shares — — — 19 — — 19 — — Repurchased and cancelled — — — — (28) (30) — (28) (30) Ending balance $ 19 $ 19 $ 19 $ 5,526 $ 5,495 $ 4,911 $ 5,545 $ 5,514 $ 4,930 In July 2019, Brookfield Infrastructure issued 13.5 million L.P units at $42.50 per unit under shelf registrations in the U.S. and Canada. In total, $575 million of gross proceeds were raised through the issuance and $24 million in equity issuance costs were incurred. Concurrently, Brookfield Infrastructure issued approximately 6.1 million Redeemable Partnership Units to Brookfield for gross proceeds of $250 million. As Brookfield participated in the unit offering at a percentage greater than its ownership interest in the Holding LP prior to the equity offering, this resulted in a slight decrease in our partnership’s ownership interest in the Holding LP without resulting in a loss of control. The difference between the proportionate amount by which the non-controlling interest in Holding LP was increased and the proceeds of the Redeemable Partnership Unit offering resulted in a gain of $8 million that was recognized directly in equity. During the year ended December 31, 2020, Brookfield Infrastructure repurchased and cancelled less than 0.1 million units for less than $0.1 million (2019: 0.8 million for $28 million, 2018: 0.9 million for $30 million) and incurred less than $1 million in commission costs (2019: less than $1 million, 2018: less than $1 million). The gain on changes in ownership interest recognized in equity is recorded as ownership changes within the Consolidated Statements of Partnership Capital. Amounts in accumulated other comprehensive income (loss) at the date of the unit offering that were attributable to the limited partners were ratably allocated to accumulated other comprehensive income attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield. In June 2010, we implemented a distribution reinvestment plan (the “Plan”) that allows eligible holders of our partnership to purchase additional units by reinvesting their cash distributions. Under the Plan, units are acquired at a price per unit calculated by reference to the volume weighted average of the trading price for our units on the NYSE for the five trading days immediately preceding the relevant distribution date. During the year ended December 31, 2020, our partnership issued less than 1 million units for proceeds of $9 million (2019: less than 1 million units for proceeds of $8 million, 2018: less than 1 million units for proceeds of $14 million) under the Plan. The weighted average number of Special General Partner Units outstanding for the year ended December 31, 2020 was 1.6 million (2019: 1.6 million, 2018: 1.6 million). The weighted average number of limited partnership units outstanding for the year ended December 31, 2020 was 294.7 million (2019: 285.6 million, 2018: 276.9 million). Net income per limited partnership unit was $0.35 for the year ended December 31, 2020 (2019: $0.06, 2018: $0.53). Net income per limited partnership unit is calculated as the total net income attributable to limited partnership units, less preferred partnership distributions, divided by the average number of limited partnership units outstanding during the year ended December 31, 2020. (b) Non-controlling interest—Redeemable Partnership Units held by Brookfield Non-controlling interest—Redeemable Partnership Units held by Brookfield UNITS MILLIONS 2020 2019 2018 Opening balance 121.9 115.8 115.8 Issued for cash — 6.1 — Ending balance 121.9 121.9 115.8 Non-controlling interest—Redeemable Partnership Units held by Brookfield US$ MILLIONS 2020 2019 2018 Opening balance $ 2,328 $ 2,078 $ 2,078 Unit issuance — 250 — Ending balance $ 2,328 $ 2,328 $ 2,078 In July 2019, Brookfield Infrastructure issued 6.1 million Redeemable Partnership Units to Brookfield for proceeds of $250 million. The weighted average number of Redeemable Partnership Units outstanding for the year ended December 31, 2020 was 122 million (2019: 118.6 million, 2018: 115.8 million). (c) Non-controlling interest—BIPC exchangeable shares Non-controlling interest— BIPC exchangeable shares UNITS MILLIONS 2020 2019 2018 Opening balance — — — Non-cash issuance 46.3 — — BIPC exchangeable shares conversion (1.4) — — Ending balance 44.9 — — Non-controlling interest— BIPC exchangeable shares US$ MILLIONS 2020 2019 2018 Opening balance $ — $ — $ — BIPC exchangeable shares conversion (19) — — Ending balance $ (19) $ — $ — On March 31, 2020, BIPC, a subsidiary of our partnership, issued 46.3 million BIPC exchangeable shares to unitholders as part of a special distribution. The distribution resulted in no cash proceeds to the partnership. The BIPC exchangeable shares provide holders with economic terms that are substantially equivalent to those of our units and are exchangeable, on a one-for-one basis, for our units. Given the exchangeable feature, the BIPC exchangeable shares are presented as a component of non-controlling interests. Refer to Note 1, Organization and Description of the Business, for further details. During the year ended December 31, 2020, BIPC exchangeable shareholders of Brookfield Infrastructure Corporation exchanged 1.4 million BIPC exchangeable shares for $19 million of our units. On July 29, 2020, Brookfield completed a secondary offering of BIPC for approximately 5 million BIPC exchangeable shares, inclusive of the over-allotment option, for net proceeds of approximately C$305 million. This transaction was conducted between BIPC and Brookfield and does not impact the partnership capital of our partnership. (d) Non-controlling interest—Exchange LP Units Non-controlling interest—Exchange LP Units held by Brookfield UNITS MILLIONS 2020 2019 2018 Opening balance 1.2 4.4 — Unit issuance 0.1 — 5.7 Exchange LP conversion (0.3) (3.2) (1.3) Ending balance 1.0 1.2 4.4 Non-controlling interest—Exchange LP Units held by Brookfield US$ MILLIONS 2020 2019 2018 Opening balance $ 159 $ 212 $ — Unit issuance — — 232 Exchange LP conversion (3) (53) (20) Ending balance $ 156 $ 159 $ 212 On October 16, 2018, Exchange LP, a subsidiary of our partnership, issued 5.7 million Exchange LP Units for proceeds of $232 million in connection with the privatization of Enercare Inc. The Exchange LP Units provide holders with economic terms that are substantially equivalent to those of our units and are exchangeable, on a one-for-one basis, for our units. Given the exchangeable feature, we present the Exchange LP Units as a component of non-controlling interests. During the year ended December 31, 2020, Exchange LP unitholders exchanged 0.3 million (2019: 3.2 million, 2018: 1.3 million) Exchange LP Units for $3 million (2019: $53 million, 2018: $20 million) of our units. (e) Preferred Unitholders’ Capital Preferred Units UNITS MILLIONS 2020 2019 2018 Opening balance 49.9 49.9 32.0 Issued for cash 8.0 — 18.0 Repurchased and cancelled — — (0.1) Ending balance 57.9 49.9 49.9 Preferred Units US$ MILLIONS 2020 2019 2018 Opening balance $ 935 $ 936 $ 595 Unit issuance 195 — 342 Repurchased and cancelled — (1) (1) Ending balance $ 1,130 $ 935 $ 936 During the year ended December 31, 2020, our partnership did not repurchase or cancel any preferred units (2019: less than 0.1 million for $1 million, 2018: 0.1 million for $1 million). On January 21, 2021, our partnership issued 8 million Series 14 Preferred Units, at $25 per unit, with a quarterly fixed distribution of 5.00% annually. In total, $200 million of gross proceeds were raised and $6 million in underwriting and issuance costs were incurred. Net proceeds of the issuance will be used to finance or refinance eligible green projects following criteria outlined by the International Capital Markets Association. On September 21, 2020, our partnership issued 8 million Series 13 Preferred Units, at $25 per unit, with a quarterly fixed distribution of 5.125% annually. In total, $200 million of gross proceeds were raised and $5 million in underwriting and issuance costs were incurred. Net proceeds of the issuance will be used to finance or refinance eligible green projects following criteria outlined by the International Capital Markets Association. On September 12, 2018, our partnership issued 10 million Series 11 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.10% annually for the initial period ending December 31, 2023. In total, C$250 million or $190 million of gross proceeds were raised, $4 million in underwriting costs were incurred and less than $1 million in issuance costs were incurred. On January 23, 2018, our partnership issued 8 million Series 9 Preferred Units at C$25 per unit with a quarterly fixed distribution at a rate of 5.00% annually for the initial period ending March 31, 2023. In total, C$200 million or $161 million of gross proceeds were raised, $4 million in underwriting costs were incurred and less than $1 million in issuance costs were incurred.

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	12 Months Ended
	Dec. 31, 2020
Disclosure of analysis of other comprehensive income by item [abstract]
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (a) Attributable to Limited Partners US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Unrealized Equity Accumulated Balance at December 31, 2018 $ 667 $ (1,336) $ 95 $ (96) $ (33) $ (18) $ 930 $ 209 Other comprehensive income (loss) 240 (8) (71) 14 33 — 38 246 Other items (5),(6) (8) 20 6 — — — — 18 Balance at December 31, 2019 $ 899 $ (1,324) $ 30 $ (82) $ — $ (18) $ 968 $ 473 Other comprehensive income (loss) 175 (287) 7 68 39 (18) 5 (11) Issuance of BIPC exchangeable shares (1) — 18 — — — — — 18 Other items (2),(3),(4) (59) 31 — — — — — (28) Balance at December 31, 2020 $ 1,015 $ (1,562) $ 37 $ (14) $ 39 $ (36) $ 973 $ 452 (b) Attributable to General Partner US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Securities Unrealized Equity Accumulated Balance at December 31, 2018 $ 5 $ (9) $ 2 $ — $ — $ — $ 5 $ 3 Other comprehensive income 1 — — — — — — 1 Balance at December 31, 2019 $ 6 $ (9) $ 2 $ — $ — $ — $ 5 $ 4 Other comprehensive income (loss) 1 (3) — 1 — — — (1) Balance at December 31, 2020 $ 7 $ (12) $ 2 $ 1 $ — $ — $ 5 $ 3 (c) Attributable to Non-controlling interest—Redeemable Partnership Units held by Brookfield US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Unrealized Equity Accumulated Balance at December 31, 2018 $ 296 $ (552) $ 40 $ (43) $ (16) $ (4) $ 391 $ 112 Other comprehensive income (loss) 99 (3) (29) 6 14 — 16 103 Other items (5),(6) (4) 9 3 — — — — 8 Balance at December 31, 2019 $ 391 $ (546) $ 14 $ (37) $ (2) $ (4) $ 407 $ 223 Other comprehensive income (loss) 72 (119) 3 28 15 (8) 2 (7) Issuance of BIPC exchangeable shares (1) — 5 — — — — — 5 Other items (2),(3),(4) (25) 13 — — — — — (12) Balance at December 31, 2020 $ 438 $ (647) $ 17 $ (9) $ 13 $ (12) $ 409 $ 209 (d) Attributable to Non-controlling interest—BIPC exchangeable shares US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Unrealized Equity Accumulated Balance at December 31, 2019 $ — $ — $ — $ — $ — $ — $ — $ — Other comprehensive income (loss) 29 51 (6) 22 5 (3) (11) 87 Issuance of BIPC exchangeable shares (1) — (23) — — — — — (23) Other items (4) (2) — — — — — — (2) Balance at December 31, 2020 $ 27 $ 28 $ (6) $ 22 $ 5 $ (3) $ (11) $ 62 (e) Attributable to Non-controlling interest—Exchange LP Units US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Unrealized Equity Accumulated Balance at December 31, 2018 $ 2 $ 1 $ — $ (1) $ — $ — $ 2 $ 4 Other comprehensive income 1 — — — — — — 1 Balance at December 31, 2019 $ 3 $ 1 $ — $ (1) $ — $ — $ 2 $ 5 Other comprehensive income (loss) 1 (2) — 1 — — — — Other items — — — — — — — — Balance at December 31, 2020 $ 4 $ (1) $ — $ — $ — $ — $ 2 $ 5 (1) In relation to the special distribution of BIPC, $23 million of accumulated other comprehensive income was reallocated to BIPC exchangeable shares. Refer to Note 1, Organization and Description of the Business, for further details. (2) In relation to the partial disposition of a further 33% interest in our Chilean toll road business, $44 million of accumulated other comprehensive loss was reclassified directly to retained earnings in the Consolidated Statements of Partnership Capital. Refer to Note 5, Disposition of Businesses, for further details. (3) In relation to the disposition of a 17% interest in our Colombian regulated distribution operation, $61 million (net of tax) of revaluation surplus gains were reclassified from accumulated other comprehensive income directly to retained earnings and recorded within Other items on the Consolidated Statements of Partnership Capital. Refer to Note 5, Disposition of Businesses, for further details. (4) In relation to the disposition of a 11% interest in our Texas electricity transmission operation, $25 million (net of tax) of revaluation surplus gains were reclassified from accumulated other comprehensive income directly to retained earnings and recorded within Other items on the Consolidated Statements of Partnership Capital. Refer to Note 13, Investments in Associates and Joint Ventures, for further details. (5) In relation to the initial partial disposition of a 33% interest in our Chilean toll road business, $38 million of accumulated other comprehensive loss, was reclassified directly to retained earnings in the Consolidated Statements of Partnership Capital.

DISTRIBUTIONS

DISTRIBUTIONS	12 Months Ended
	Dec. 31, 2020
Distributions [Abstract]
DISTRIBUTIONS	DISTRIBUTIONS The following table outlines distributions made to each class of partnership units, including BIPC exchangeable shares and Exchange LP units that are exchangeable into limited partner units. For the year ended December 31, US$ MILLIONS 2020 2019 2018 Limited Partners $ (588) $ (575) $ (520) General Partner (1) (185) (158) (140) Non-controlling interest attributable to: Redeemable Partnership Units held by Brookfield (240) (241) (216) BIPC exchangeable shares (66) — — Exchange LP Units (4) (4) (2) Preferred unitholders (51) (49) (41) Total Distributions $ (1,134) $ (1,027) $ (919) For the year ended December 31, PER UNIT/SHARE (2) 2020 2019 2018 Limited Partners $ 1.94 $ 1.81 $ 1.69 General Partner (1) 1.94 1.81 1.69 Non-controlling interest attributable to: Redeemable Partnership Units held by Brookfield 1.94 1.81 1.69 BIPC exchangeable shares 1.94 1.81 1.69 Exchange LP Units 1.94 1.81 1.69 Preferred unitholders 0.97 0.98 0.97 (1) Distributions to the General Partner include $183 million of incentive distributions for the year ended December 31, 2020 (2019: $158 million, 2018: $136 million). (2) Our partnership paid a distribution of $0.5375 per unit in March 2020. On March 31, 2020, our partnership completed the previously announced creation of BIPC with a special distribution of BIPC exchangeable shares. The special distribution resulted in the issuance of approximately 46.3 million BIPC exchangeable shares. Current and historical per unit disclosures have been retroactively adjusted for the impact of the special distribution. Refer to Note 1, Organization and Description of the Business, for further details. For the period up until June 30, 2020, holders of the Cumulative Class A Preferred Limited Partnership Units, Series 1 (“Series 1 Units”), received a cumulative quarterly fixed distribution at an annual rate of 4.50% (C$0.2813 per unit per quarter). On June 1, 2020, our partnership announced the fixed distribution rate reset on its Series 1 Units for the five years commencing July 1, 2020 and ending June 30, 2025 at 3.974% (C$0.2484 per unit per quarter).

CONTINGENT ASSETS_& LIABILITIES

CONTINGENT ASSETS & LIABILITIES	12 Months Ended
	Dec. 31, 2020
Other Provisions, Contingent Liabilities and Contingent Assets [Abstract]
CONTINGENT ASSETS & LIABILITIES	CONTINGENT ASSETS & LIABILITIES Brookfield Infrastructure, including its associates, had bank and customs guarantees and letters of credit outstanding to third parties totaling $249 million (2019: $604 million). These guarantees are generally supported by cash on deposit with banks. Our partnership and its subsidiaries are contingently liable with respect to litigation and claims that arise in the normal course of operations.

CONTRACTUAL COMMITMENTS

CONTRACTUAL COMMITMENTS	12 Months Ended
	Dec. 31, 2020
Contractual Commitments [Abstract]
CONTRACTUAL COMMITMENTS	CONTRACTUAL COMMITMENTS In the normal course of business, our partnership will enter into contractual obligations which include commitments relating primarily to contracted project costs for various growth initiatives, committed expenditures associated with gas and electricity sales contracts at our U.K. regulated distribution operation, and leases associated with our U.S. data center operation, Indian telecom towers operation, North American rail operation, Australian port operation and our North American gas storage operations. As at December 31, 2020, our partnership had $5,750 million (2019: $3,801 million) of commitments outstanding, of which 10% mature in less than one year, 22% between two and five years, and 68% after five years. In addition, pursuant to the Master Service Agreement, on a quarterly basis, Brookfield Infrastructure pays a base management fee to the Service Provider equal to 0.3125% per quarter (1.25% annually) of the market value of our partnership. This fee is recorded on the Consolidated Statements of Operating Results in general and administrative expenses.

RETIREMENT BENEFIT PLANS

RETIREMENT BENEFIT PLANS	12 Months Ended
	Dec. 31, 2020
Employee Benefits [Abstract]
RETIREMENT BENEFIT PLANS	RETIREMENT BENEFIT PLANS Brookfield Infrastructure offers pension plans to certain employees of its subsidiaries. Brookfield Infrastructure’s obligations under its defined benefit pension plans are determined periodically through the preparation of actuarial valuations. The benefit plans’ expense for 2020 was $38 million (2019: $9 million, 2018: $2 million). The discount rate used was 1.7% (2019: 2.5%, 2018: 4.5%) with a rate of compensation of 2.3% (2019: 2.8%, 2018: 3%). US$ MILLIONS 2020 2019 Plan assets $ 833 $ 686 Less accrued benefit obligation (1,164) (851) Accrued benefit liability (1) $ (331) $ (165)

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2020
Related Party [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONSIn the normal course of operations, Brookfield Infrastructure entered into the transactions below with related parties. The immediate parent of Brookfield Infrastructure is our partnership. The ultimate parent of Brookfield Infrastructure is Brookfield. Other related parties of Brookfield Infrastructure represent its subsidiary and operating entities. Throughout the year, the General Partner, in its capacity as our partnership’s general partner, incurs director fees, a portion of which are charged at cost to our partnership in accordance with our limited partnership agreement. Director fees of $1 million were incurred during the year ended December 31, 2020 (2019: $1 million, 2018: $1 million). Since inception, Brookfield Infrastructure has had a management agreement (the “Master Services Agreement”) with certain service providers (the “Service Provider”), which are wholly-owned subsidiaries of Brookfield. Pursuant to the Master Services Agreement, on a quarterly basis, Brookfield Infrastructure pays a base management fee, referred to as the Base Management Fee, to the Service Provider equal to 0.3125% per quarter (1.25% annually) of the market value of our partnership. The Base Management Fee was $302 million for the year ended December 31, 2020 (2019: $270 million, 2018: $214 million). As of December 31, 2020, $89 million was outstanding as payable to the Service Provider (December 31, 2019: $76 million). For purposes of calculating the Base Management Fee, the market value of our partnership is equal to the aggregate value of all the outstanding units of our partnership (assuming full conversion of Brookfield’s Redeemable Partnership Units in the Holding LP into units of our partnership), preferred units and securities of the other Service Recipients (as defined in Brookfield Infrastructure’s Master Services Agreement) that are not held by Brookfield Infrastructure, plus all outstanding third party debt with recourse to a Service Recipient, less all cash held by such entities. As of December 31, 2020, Brookfield Infrastructure had a receivable balance of $21 million from subsidiaries of Brookfield (December 31, 2019: $21 million) and loans payable of $82 million to subsidiaries of Brookfield (December 31, 2019: $99 million). The loans are payable in full between 2021 and 2026 with interest rates ranging from 1.7% to 8.5% per annum. Brookfield Infrastructure, from time to time, will place deposits with, or receive deposits from, Brookfield. As at December 31, 2020, our net deposit from Brookfield was $545 million (December 31, 2019: net deposit with Brookfield of less than $1 million) and Brookfield Infrastructure incurred interest expense of $1 million for the year ended December 31, 2020 (2019: $4 million, 2018: $nil). Deposits bear interest at market rates. Brookfield Infrastructure has entered into a $500 million revolving credit facility with Brookfield to provide additional liquidity for general corporate purposes and capital expenditures, if required. As of December 31, 2020, there were $nil (December 31, 2019: $nil) borrowings outstanding. On November 30, 2020, Brookfield Infrastructure completed the transfer of our entitlement to investments in Brookfield Infrastructure Debt Fund II to Brookfield at fair value. Prior to the transfer, our partnership received approximately $65 million from Brookfield for financial assets funded by our partnership on behalf of the fund. Gains of $nil were recognized on transfer. Brookfield Infrastructure’s subsidiaries provide heating, cooling, and connection services in the normal course of operations on market terms to subsidiaries and associates of Brookfield Property Partners L.P. In addition, our subsidiaries lease office space and obtain construction, consulting and engineering services in the normal course of operations on market terms from subsidiaries and associates of Brookfield Property Partners L.P. For the year ended December 31, 2020, revenues of $9 million were generated (2019: $33 million, 2018: $16 million) and expenses of $1 million were incurred (2019: $15 million, 2018: $5 million). In addition, subsidiaries of Brookfield Infrastructure reported lease assets and liabilities with Brookfield Property Partners L.P. of $12 million (December 31, 2019: $11 million). Brookfield Infrastructure’s U.K. port operation provides port marine services on market terms to a subsidiary of Brookfield Business Partners L.P. For the year ended December 31, 2020, $3 million of revenues were generated (2019: $4 million, 2018: $4 million).

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS	DERIVATIVE FINANCIAL INSTRUMENTS Brookfield Infrastructure’s activities expose it to a variety of financial risks, including market risk (i.e. currency risk, interest rate risk, commodity risk and other price risk), credit risk and liquidity risk. Brookfield Infrastructure and its subsidiaries selectively use derivative financial instruments principally to manage these risks. The aggregate notional amount of Brookfield Infrastructure’s derivative positions at December 31, 2020 and 2019 were as follows: US$ MILLIONS Note 2020 2019 Foreign exchange contracts (a) $ 3,274 $ 4,626 Interest rates swaps and other (b) 11,437 11,163 Commodity contracts 32 66 $ 14,743 $ 15,855 The following table presents the change in fair values of Brookfield Infrastructure’s derivative positions during the years ended December 31, 2020 and 2019: US$ MILLIONS Unrealized Gains Unrealized Losses Net Change During 2020 Net Change During 2019 Foreign exchange derivatives $ 196 $ (409) $ (213) $ (128) Interest rate derivatives 460 (633) (173) (31) Commodity derivatives — (17) (17) — $ 656 $ (1,059) $ (403) $ (159) (a) Foreign Exchange Brookfield Infrastructure held the following foreign exchange contracts with notional amounts at December 31, 2020 and 2019. Notional Amount Average US$ MILLIONS 2020 2019 2020 2019 Foreign exchange contracts British pounds $ 1,404 $ 2,882 $ 1.31 $ 1.31 Canadian dollars 612 4 0.75 0.76 Australian dollars 609 1,102 0.69 0.73 Indian rupees 308 — 0.013 — European Union euros 239 365 1.21 1.25 Chilean pesos 34 242 0.0013 0.0015 Colombian pesos 28 19 0.0003 0.0003 Peruvian soles 12 12 0.28 0.29 Other 28 — — — $ 3,274 $ 4,626 (b) Interest Rates At December 31, 2020, Brookfield Infrastructure held interest rate and cross currency interest rate swap contracts having an aggregate notional amount of $11,265 million (2019: $10,996 million). Brookfield Infrastructure has inflation linked swaps with an aggregate notional amount of $172 million (2019: $167 million). Our partnership has an aggregate notional amount of $4,829 million floating interest rate derivatives that are benchmarked against the LIBOR, $681 million floating interest rates derivatives that are benchmarked against the bank bill swap rate and $1,533 million floating interest rates derivatives that are benchmarked against the CDOR that could be impacted by the IBOR reform. Please refer to Note 3 , Significant Accounting Policies , for more details. Other Information Regarding Derivative Financial Instruments The following table presents the notional amounts underlying Brookfield Infrastructure’s derivative instruments by term to maturity as at December 31, 2020 and the comparative notional amounts at December 31, 2019, for both derivatives that are classified as fair value through profit or loss and derivatives that qualify for hedge accounting: 2020 2019 US$ MILLIONS < 1 year 1 to 5 years > 5 years Total Notional Total Notional Fair value through profit or loss Foreign exchange derivatives $ 867 $ 856 $ — $ 1,723 $ 1,416 Interest rate derivatives Interest rate swaps, cross currency interest rate swaps and other 75 704 — 779 53 Inflation linked swaps — 172 — 172 167 Commodity contracts 32 — — 32 66 $ 974 $ 1,732 $ — $ 2,706 $ 1,702 Elected for hedge accounting Foreign exchange derivatives $ 438 $ 510 $ 603 $ 1,551 $ 3,210 Interest rate derivatives Interest rate and cross currency interest rate swaps 429 6,081 3,976 10,486 10,943 $ 867 $ 6,591 $ 4,579 $ 12,037 $ 14,153 The following table classifies derivatives elected for hedge accounting during the years ended December 31, 2020 and 2019 as either cash flow hedges or net investment hedges. Changes in the fair value of the effective portion of the hedges are recorded in either other comprehensive income or net income, depending on the hedge classification, whereas changes in the fair value of the ineffective portion of the hedge are recorded in net income: 2020 2019 AS AT AND FOR THE YEARS ENDED (MILLIONS) Notional Effective Ineffective Notional Effective Ineffective Cash flow hedges $ 11,089 $ (160) $ 9 $ 10,943 $ (33) $ (1) Net investment hedges 948 32 2 3,210 (113) 16 $ 12,037 $ (128) $ 11 $ 14,153 $ (146) $ 15 Our partnership settles the difference between the contracted fixed and floating rates of its interest rate swaps on a net basis. All interest rate swap contracts exchanging floating rate interest amounts for fixed rate interest amounts are designated as cash flow hedges in order to reduce our partnership’s cash flow exposure resulting from variable interest rates on borrowings. The interest rate swaps and the interest payments on the borrowings occur simultaneously and the amount accumulated in equity is reclassified to profit or loss over the period that the floating rate interest payments on borrowings affect profit or loss.

FINANCIAL RISK MANAGEMENT

FINANCIAL RISK MANAGEMENT	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
FINANCIAL RISK MANAGEMENT	FINANCIAL RISK MANAGEMENT Brookfield Infrastructure is exposed to the following risks as a result of holding financial instruments: capital risk; liquidity risk; market risk (i.e. interest rate risk and foreign currency risk); and credit risk. The following is a description of these risks and how they are managed: (a) Liquidity Risk Management Brookfield Infrastructure manages its capital structure to be able to continue as a going concern while maximizing the return to stakeholders. Brookfield Infrastructure’s overall capital strategy remains unchanged from 2019. Our non-recourse borrowings have increased due to recently completed acquisitions while maintaining our net debt to capitalization ratio consistent with the prior year. The capital structure of Brookfield Infrastructure consists of debt, offset by cash and cash equivalents, and partnership capital comprised of issued capital and accumulated gains. US$ MILLIONS 2020 2019 Corporate borrowings $ 3,158 $ 2,475 Non-recourse borrowings 20,020 18,544 Subsidiary and corporate borrowings 23,178 21,019 Preferred shares 20 20 Cash and cash equivalents (1) (1,393) (969) Net debt 21,805 20,070 Total partnership capital 21,673 22,177 Total capital and net debt $ 43,478 $ 42,247 Net debt to capitalization ratio 50 % 48 % (1) Includes marketable securities. The Board, along with senior management of the Service Provider, reviews Brookfield Infrastructure’s capital structure and as part of this review, considers the cost of capital and the risk associated with each class of capital. Brookfield Infrastructure manages its debt exposure by financing its operations on a non-recourse basis with prudent levels of debt, ensuring a diversity of funding sources as well as laddering its maturity profile to minimize refinance risk. Brookfield Infrastructure also borrows in the currency where the asset operates, where possible, in order to hedge its currency risk. Generally, Brookfield Infrastructure’s equity strategy is to issue equity in conjunction with acquisitions or outsized organic growth initiatives or acquisition activity at our businesses. The equity portion of capital expenditures and normal levels of acquisition of activity will be fully self-funded through operating cash flows retained in the business and capital recycling. However, Brookfield Infrastructure may also issue equity opportunistically to enhance its liquidity to pursue investments. Brookfield Infrastructure maintains active shelf registrations to enable it to issue securities in both the U.S. and Canadian markets. Brookfield Infrastructure’s financing plan is to fund its recurring growth capital expenditures with cash flow generated by its operations after maintenance capital expenditure, as well as debt financing that is sized to maintain its credit profile. To fund large scale development projects and acquisitions, Brookfield Infrastructure will evaluate a variety of capital sources including proceeds from selling non-core assets, equity and debt financing. Our partnership will seek to raise additional equity if Brookfield Infrastructure believes it can earn returns on these investments in excess of the cost of the incremental partnership capital. As disclosed within Note 19, Borrowings, Brookfield Infrastructure has various loan facilities in place. In certain cases, the facilities have financial covenants which are generally in the form of interest coverage ratios and leverage ratios. Brookfield Infrastructure does not have any market capitalization covenants attached to any of its borrowings, nor does it have any other externally imposed capital requirements. As of December 31, 2020, approximately $540 million of debt was in breach of asset-level financial covenants. This equates to approximately 2.3% of total partnership debt. The partnership anticipates being able to refinance or obtain waivers from our financial institutions. During the year ended December 31, 2019, there were no breaches of any loan covenants within Brookfield Infrastructure. Brookfield Infrastructure attempts to maintain sufficient financial liquidity at all times so that it is able to participate in attractive opportunities as they arise, better withstand sudden adverse changes in economic circumstances and maintain its distribution of FFO to unitholders. Brookfield Infrastructure’s principal sources of liquidity are cash flows from its operations, undrawn credit facilities and access to public and private capital markets. Brookfield Infrastructure also structures the ownership of its assets to enhance its ability to monetize them to provide additional liquidity, if necessary. Brookfield Infrastructure’s corporate liquidity as at December 31 was as follows: US$ MILLIONS (1) 2020 2019 Corporate cash and financial assets $ 464 $ 273 Availability under committed credit facilities (2) 3,475 2,475 Draws on credit facility (1,131) (820) Deposit from parent (545) — Commitments under credit facility (63) (54) Corporate liquidity $ 2,200 $ 1,874 (1) Liquidity managed by Brookfield Infrastructure L.P. and affiliated corporate entities. (2) Includes a $1.975 billion committed corporate credit facility, a $500 million credit facility with Brookfield and an incremental $1.0 billion syndicated revolving credit facility. Refer to Note 19, Borrowings, for further details. The following tables detail the contractual maturities for Brookfield Infrastructure’s financial liabilities. The tables reflect the undiscounted cash flows of financial liabilities based on the earliest date on which Brookfield Infrastructure can be required to pay. The tables include both interest and principal cash flows: Less than 1-2 years 2-5 years 5+ years Total December 31, 2020 US$ MILLIONS Accounts payable and other liabilities $ 2,346 $ 27 $ 71 $ 301 $ 2,745 Corporate borrowings — — 1,681 1,492 3,173 Non-recourse borrowings (1) 1,052 881 8,336 9,908 20,177 Financial liabilities 696 1,138 350 1,190 3,374 Lease liabilities 279 247 647 3,685 4,858 Interest Expense: Corporate borrowings 72 72 163 170 477 Non-recourse borrowings 853 811 1,970 2,592 6,226 (1) As of December 31, 2020, approximately $540 million of debt was in breach of asset-level financial covenants. We anticipate being able to refinance or obtain waivers from our financial institutions and accordingly presented the debt in the contractually obligated year of maturity. Less than 1-2 years 2-5 years 5+ years Total December 31, 2019 US$ MILLIONS Accounts payable and other liabilities $ 1,626 $ 29 $ 31 $ 187 $ 1,873 Corporate borrowings — — 1,705 770 2,475 Non-recourse borrowings 1,405 1,019 7,110 9,142 18,676 Financial liabilities 327 293 1,080 473 2,173 Lease liabilities 223 194 475 1,903 2,795 Interest Expense: Corporate borrowings 74 74 165 123 436 Non-recourse borrowings 715 660 1,762 2,483 5,620 (b) Market Risk Market risk is defined for these purposes as the risk that the fair value or future cash flows of a financial instrument held by Brookfield Infrastructure will fluctuate because of the change in market prices. Market risk includes the risk of changes in interest rates, foreign currency exchange rates and equity prices. Brookfield Infrastructure seeks to minimize the risks associated with foreign currency exchange rates and interest rates primarily through the use of derivative financial instruments to hedge these risk exposures. The use of financial derivatives is governed by Brookfield Infrastructure’s Treasury Policy. Brookfield Infrastructure does not enter into, or trade financial instruments, including derivative financial instruments, for speculative purposes. The Treasury Policy provides written principles on the use of financial derivatives. With respect to its treasury policy, the Service Provider performs the monitoring, review and approval role and report to the Board on a regular basis. Financial instruments held by Brookfield Infrastructure that are subject to market risk include other financial assets, borrowings, derivative instruments, such as interest rate and foreign currency contracts, and marketable securities. Our partnership is exposed to equity price risks arising from marketable securities. As at December 31, 2020 the balance of the portfolio was $526 million (2019: $142 million), a 10% change in the value of the portfolio would impact our equity by $52 million and result in an impact on the Consolidated Statements of Operating Results of $32 million and Consolidated Statements of Comprehensive Income of $20 million. Interest Rate Risk Management Brookfield Infrastructure’s primary objectives with respect to interest rate risk management are to ensure that: • Brookfield Infrastructure is not exposed to interest rate movements that could adversely impact its ability to meet financial obligations; • Earnings and distributions are not adversely affected; • Volatility of debt servicing costs is managed within acceptable parameters; and • All borrowing covenants under various borrowing facilities, including interest coverage ratios, are complied with. To achieve these objectives, in general terms, Brookfield Infrastructure’s funding mix comprises both fixed and floating rate debt. Fixed rate debt is achieved either through fixed rate debt funding or through the use of financial derivate instruments. In addition, where possible, interest rate risk is minimized by matching the terms of interest rate swap contracts in regulated businesses to the term of the rate period, thus providing natural hedges. The sensitivity analyses below reflect Brookfield Infrastructure’s exposure to interest rates for both derivative and non-derivative instruments at the reporting date, assuming that a 10 basis point increase or decrease in rates takes place at the beginning of the financial year and is held constant throughout the reporting period. The sensitivity analyses assume a 10 basis point change to reflect the current methodology employed by Brookfield Infrastructure in assessing interest rate risk. Such parallel shift in the yield curve by 10 basis points would have had the following impact, assuming all other variables were held constant: 2020 2019 2018 US$ MILLIONS 10 bp 10 bp 10 bp 10 bp 10 bp 10 bp Net income $ 1 $ (1) $ 1 $ (1) $ 1 $ (1) Other comprehensive income (loss) (1) 1 (2) 2 (2) 2 Foreign Currency Risk Management Brookfield Infrastructure has exposure to foreign currency risk in respect of currency transactions, the value of Brookfield Infrastructure’s net investment, cash flows and capital expenditures that are denominated outside of the U.S. Brookfield Infrastructure’s approach to foreign currency risk management is: • Brookfield Infrastructure leverages any natural hedges that may exist within its operations; • Brookfield Infrastructure utilizes local currency debt financing to the extent possible; and • Brookfield Infrastructure may utilize derivative contracts to the extent that natural hedges are insufficient. The tables below set out Brookfield Infrastructure’s currency exposure at December 31, 2020 and 2019: 2020 US$ MILLIONS USD AUD GBP BRL CLP CAD EUR COP PEN INR NZD & Other Total Assets: Current assets $ 805 $ 314 $ 471 $ 420 $ 126 $ 492 $ 145 $ 216 $ 105 $ 573 $ 44 $ 3,711 Non-current assets 14,313 4,042 8,939 5,210 834 9,334 903 1,256 1,247 10,979 563 57,620 $ 15,118 $ 4,356 $ 9,410 $ 5,630 $ 960 $ 9,826 $ 1,048 $ 1,472 $ 1,352 $ 11,552 $ 607 $ 61,331 Liabilities: Current liabilities $ 1,875 $ 446 $ 877 $ 214 $ 125 $ 602 $ 24 $ 246 $ 438 $ 620 $ 57 $ 5,524 Non-current liabilities 10,887 1,842 4,939 2,970 1,148 4,994 118 478 212 6,389 157 34,134 12,762 2,288 5,816 3,184 1,273 5,596 142 724 650 7,009 214 39,658 Non-controlling interest—in operating subsidiaries and preferred unitholders 5,186 488 726 871 (335) 4,020 — 636 591 2,901 — 15,084 Non-controlling interest—Redeemable Partnership Units held by Brookfield (725) 405 734 403 6 54 232 29 28 420 101 1,687 Non-controlling interest—BIPC exchangeable shares (275) 153 278 153 2 20 88 11 11 159 38 638 Non-controlling interest—Exchange LP (5) 3 5 3 — — 2 — — 3 1 12 Net investment attributable to limited partners and general partner $ (1,825) $ 1,019 $ 1,851 $ 1,016 $ 14 $ 136 $ 584 $ 72 $ 72 $ 1,060 $ 253 $ 4,252 2019 US$ MILLIONS USD AUD GBP BRL CLP CAD EUR COP PEN INR NZD & Other Total Assets: Current assets $ 1,232 $ 1,914 $ 430 $ 456 $ 95 $ 316 $ 23 $ 971 $ 122 $ 231 $ 51 $ 5,841 Non-current assets 14,594 5,488 7,195 6,889 821 8,541 764 1,166 1,337 3,143 529 50,467 $ 15,826 $ 7,402 $ 7,625 $ 7,345 $ 916 $ 8,857 $ 787 $ 2,137 $ 1,459 $ 3,374 $ 580 $ 56,308 Liabilities: Current liabilities $ 1,345 $ 1,530 $ 749 $ 211 $ 68 $ 456 $ 24 $ 724 $ 19 $ 265 $ 48 $ 5,439 Non-current liabilities 8,908 3,703 4,211 3,448 1,112 4,639 73 314 683 1,482 119 28,692 10,253 5,233 4,960 3,659 1,180 5,095 97 1,038 702 1,747 167 34,131 Non-controlling interest—in operating subsidiaries and preferred unitholders 5,704 475 754 1,414 (320) 4,066 — 957 638 1,360 — 15,048 Non-controlling interest—Redeemable Partnership Units held by Brookfield (37) 485 547 650 16 (87) 197 41 34 76 117 2,039 Non-controlling interest—Exchange LP — 4 5 6 — (1) 2 — — 1 1 18 Net investment attributable to limited partners and general partner $ (94) $ 1,205 $ 1,359 $ 1,616 $ 40 $ (216) $ 491 $ 101 $ 85 $ 190 $ 295 $ 5,072 The following tables detail Brookfield Infrastructure’s sensitivity to a 10% increase and decrease in the U.S. dollar against the relevant foreign currencies, with all other variables held constant as at reporting date. 10% is the sensitivity rate used when reporting foreign currency risk internally. The sensitivity analysis is performed as follows: • Outstanding foreign currency denominated monetary items (excluding foreign exchange derivative contracts) are adjusted at period end for a 10% change in foreign currency rates from the rate at which they are translated; • Foreign currency derivative contracts are measured as the change in fair value of the derivative as a result of a 10% change in the spot currency rate; and • The impact on net income results from performing a sensitivity of a 10% change in foreign exchange rates applied to the profit or loss contribution from foreign operations (after considering the impact of foreign exchange derivative contracts). Impact on Net Income 2020 2019 2018 US$ MILLIONS -10% 10% -10% 10% -10% 10% USD/AUD $ 4 $ (4) $ 4 $ (4) $ (20) $ 20 USD/EUR 2 (2) — — (19) 19 USD/GBP 5 (5) 7 (7) (11) 11 USD/CLP (1) 1 — — (3) 3 USD/COP 1 (1) 1 (1) 1 (1) USD/BRL 15 (15) 18 (18) 10 (10) USD/CAD 4 (4) 1 (1) (2) 2 USD/INR (3) 3 (2) 2 (1) 1 USD/NZD (1) 1 — — — — Impact on Partnership Capital 2020 2019 US$ MILLIONS -10% 10% -10% 10% USD/AUD $ 70 $ (70) $ 12 $ (12) USD/EUR 14 (14) — — USD/GBP 105 (105) — — USD/CLP (5) 5 (24) 24 USD/COP 8 (8) 2 (2) USD/BRL 158 (158) 227 (227) USD/CAD 1 (1) — — USD/PEN 10 (10) 11 (11) USD/INR 58 (58) 27 (27) (c) Credit Risk Management Credit risk is the risk of loss due to the failure of a borrower or counterparty to fulfill its contractual obligations. From a treasury perspective, counterparty credit risk is managed through the establishment of authorized counterparty credit limits which are designed to ensure that Brookfield Infrastructure only deals with creditworthy counterparties and that counterparty concentration is addressed and the risk of loss is mitigated. Credit limits are sufficiently low to restrict Brookfield Infrastructure from having credit exposures concentrated with a single counterparty but rather encourages spreading such risks among several parties. The limits are set at levels that reflect Brookfield Infrastructure’s scale of activity and allow it to manage its treasury business competitively. Brookfield Infrastructure does not have any significant credit risk exposure to any single counterparty or any group of counterparties having similar characteristics. The credit risk on liquid funds and derivative financial instruments is limited because the counterparties are banks with high credit ratings assigned by international credit rating agencies. Exposure to credit risk is limited to the carrying amount of the assets on the Consolidated Statements of Financial Position.

CAPITAL MANAGEMENT

CAPITAL MANAGEMENT	12 Months Ended
	Dec. 31, 2020
Disclosure of Capital Management [Abstract]
CAPITAL MANAGEMENT	CAPITAL MANAGEMENT Our partnership’s approach to capital management is focused on maximizing returns to unitholders and ensuring capital is deployed in a manner consistent with achieving our investment return objectives. Invested Capital, which tracks the amount of capital that has been contributed to our partnership, is a measure we utilize to assess returns on capital deployed, relative to targeted returns. Investment decisions are based on, amongst other measures and factors, targeted returns on Invested Capital of 12% to 15% annually over the long-term. We measure return on Invested Capital as Adjusted Funds from Operations (“AFFO”), less estimated returns of capital on operations that are not perpetual in nature, divided by the weighted average Invested Capital for the period. We define AFFO as FFO less capital expenditures required to maintain the current performance of our operations (maintenance capital expenditures). We define Invested Capital as partnership capital removing the impact of the following items: non-controlling interest - in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes. US$ MILLIONS 2020 2019 Partnership Capital $ 21,673 $ 22,177 Remove impact of the following items since inception: Non-controlling interest - in operating subsidiaries (13,954) (14,113) Deficit 2,752 2,048 Accumulated other comprehensive income (731) (705) Ownership changes (527) (398) Invested Capital $ 9,213 $ 9,009 The following table presents the change in Invested Capital during year ended December 31, 2020: US$ MILLIONS 2020 2019 Opening balance $ 9,009 $ 8,156 Issuance of preferred units and preferred shares, net of repurchases 195 72 Issuances of limited partnership units and redeemable partnership units, net of repurchases 9 781 Ending balance $ 9,213 $ 9,009 Weighted Average Invested Capital $ 9,067 $ 8,563

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	12 Months Ended
	Dec. 31, 2020
Cash Flow Statement [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION For the year ended US$ MILLIONS 2020 2019 2018 Interest paid $ 985 $ 829 $ 507 Income taxes paid $ 172 $ 179 $ 427 Amounts paid and received for interest were reflected as operating cash flows in the Consolidated Statements of Cash Flows. Interest paid is net of debt related hedges. Amounts paid for income taxes were reflected as either operating cash flows or investing cash flows in the Consolidated Statements of Cash Flows depending upon the nature of the underlying transaction. Details of “Changes in non-cash working capital, net” on the Consolidated Statements of Cash Flows are as follows: For the year ended US$ MILLIONS 2020 2019 2018 Accounts receivable $ 284 $ 42 $ 176 Prepayments (415) (120) 5 Accounts payable and other (89) 146 (305) Changes in non-cash working capital, net $ (220) $ 68 $ (124)

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
	Dec. 31, 2020
Disclosure of events after reporting period [Abstract]
Subsequent Events	SUBSEQUENT EVENTS (a) Disposition of our North American district energy operation On February 2, 2021, Brookfield Infrastructure, alongside institutional partners (the “Enwave consortium”), agreed to the sale of its North American district energy operations in two separate transactions for total consideration of approximately $4.1 billion on an enterprise value basis. Gross proceeds to Brookfield Infrastructure are expected to be approximately $1.0 billion. The disposition is subject to customary closing conditions. (b) Acquisition of Brazilian electricity transmission operation On February 26, 2021, Brookfield Infrastructure, alongside institutional partners (the “JMM consortium”), exercised its option to acquire an additional 15% interest in Jose Maria de Macedo de Eletricidade S.A (“JMM”), a Brazilian electricity transmission operation, increasing Brookfield Infrastructure’s ownership in JMM to 31%. Prior to February 26, 2021, our partnership’s existing interest in JMM was accounted for using the equity method. On closing, Brookfield Infrastructure entered into a voting agreement with an affiliate of Brookfield, providing Brookfield Infrastructure the right to direct the relevant activities of the entity, thereby providing Brookfield Infrastructure with control. Accordingly, Brookfield Infrastructure will consolidate JMM effective February 26, 2021. At the date of the acquisition, Brookfield Infrastructure recognized approximately $500 million of assets and approximately $295 million of liabilities. Non-controlling interest, reflecting the fair value of the portion of the business not acquired by Brookfield Infrastructure, of approximately $140 million was also recognized. Due to the recent closing of the acquisition, the initial purchase price accounting for the business combination is not available as at the date of issuance of these consolidated financial statements. As a result, the partnership has not provided amounts recognized as at the acquisition date for certain classes of assets acquired and liabilities assumed and has not disclosed the pro-forma revenue and net income attributable to the partnership as if the acquisition had been effective January 1, 2021. (c) Partial disposition of our U.S. gas pipeline On March 8, 2021, Brookfield Infrastructure sold an effective 13% interest in its U.S. gas pipeline for net proceeds of approximately $410 million. A gain is anticipated to be recognized in Other income (expense) in the Consolidated Statement of Operating Results related to the partial disposition and Brookfield Infrastructure will continue to equity account for the business.

SIGNIFICANT ACCOUNTING POLICI_2

SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2020
Corporate Information And Statement Of IFRS Compliance [Abstract]
Statement of Compliance	Statement of Compliance These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS”). The consolidated financial statements were authorized for issue by the Board of Directors on March 18, 2021.
Basis of Preparation	Basis of PreparationThe consolidated financial statements are prepared on a going concern basis.
Subsidiaries	Subsidiaries These consolidated financial statements include the accounts of our partnership and subsidiaries over which our partnership has control. Subsidiaries are consolidated from the date of acquisition, being the date on which our partnership obtains control, and continue to be consolidated until the date when control is lost. Our partnership (investor) controls an investee when it is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Together, our partnership and its subsidiaries are referred to as “Brookfield Infrastructure” in these financial statements. Non-controlling interests may be initially measured either at fair value or at the non-controlling interests’ proportionate share of the fair value of the acquiree’s identifiable net assets. The choice of measurement basis is made on an acquisition by acquisition basis. Subsequent to acquisition, the carrying amount of non-controlling interests is the amount of those interests at initial recognition plus the non-controlling interests’ share of subsequent changes in partnership capital in addition to changes in ownership interests. Total comprehensive income is attributed to non-controlling interests, even if this results in the non-controlling interests having a deficit balance. Holding LP has issued Redeemable Partnership Units held by Brookfield, which may, at the request of the holder, require the Holding LP to redeem the Redeemable Partnership Units for cash consideration equal to the market price of our partnership’s units. This right is subject to our partnership’s right of first refusal which entitles it, at its sole discretion, to elect to acquire any Redeemable Partnership Unit so presented to Holding LP in exchange for one of our partnership’s units subject to certain customary adjustments. All intercompany balances, transactions, revenues and expenses are eliminated in full.
Associates and Joint Ventures	Associates and Joint Ventures Associates and joint ventures are entities over which our partnership has significant influence or joint control. Significant influence is the power to participate in the financial and operating policy decisions of the investee but does not constitute control. Our partnership accounts for investments over which it has significant influence using the equity method, and are recorded as Investments in associates and joint ventures on the Consolidated Statements of Financial Position. Interests in investments accounted for using the equity method are initially recorded at cost. If the cost of the associate is lower than the proportionate share of the investment’s underlying fair value, our partnership records a gain on the difference between the cost and the underlying fair values of the identifiable net assets of the associate. If the cost of the associate is greater than our partnership’s proportionate share of the underlying fair value, goodwill and other adjustments arising from the purchase price allocation relating to the associate is included in the carrying amount of the investment. Subsequent to initial recognition, the carrying value of our partnership’s interest in an investee is adjusted for our partnership’s share of comprehensive income or loss and distributions from the investee. Profits or losses resulting from transactions with an associate are recognized in the consolidated financial statements based on the interests of unrelated investors in the associate.
Foreign Currency Translation	Foreign Currency Translation The U.S. dollar is the functional and presentation currency of Brookfield Infrastructure. Each of Brookfield Infrastructure’s subsidiaries, associates and jointly controlled entities determines its own functional currency and items included in the financial statements of each subsidiary and associate are measured using that functional currency. Assets and liabilities of foreign operations having a functional currency other than the U.S. dollar are translated at the rate of exchange prevailing at the reporting date and revenues and expenses at average rates during the period. Gains or losses on translation are included as a component of other comprehensive income. On disposal of a foreign operation resulting in the loss of control, the component of other comprehensive income due to accumulated foreign currency translation relating to that foreign operation is reclassified to net income. Gains or losses on foreign currency denominated balances and transactions that are designated as hedges of net investments in these operations are reported in the same manner. On partial disposal of a foreign operation in which control is retained, the proportionate share of the component of other comprehensive income or loss relating to that foreign operation is reclassified to non-controlling interests in that foreign operation. Foreign currency denominated monetary assets and liabilities are translated using the rate of exchange prevailing at the reporting date and non-monetary assets and liabilities measured at fair value are translated at the rate of exchange prevailing at the date when the fair value was determined. Revenues and expenses are measured at average rates during the period. Gains or losses on translation of these items are included in net income. Gains and losses on transactions which hedge these items are also included in net income or loss. Foreign currency denominated non-monetary assets and liabilities, measured at historic cost, are translated at the rate of exchange at the transaction date.
Business Combinations	Business Combinations Business acquisitions in which control is acquired are accounted for using the acquisition method, other than those between and among entities under common control. The consideration of each acquisition is measured at the aggregate of the fair values at the acquisition date of assets transferred by the acquirer, liabilities incurred or assumed, and equity instruments issued by Brookfield Infrastructure in exchange for control of the acquiree. Acquisition related costs are recognized in the Consolidated Statement of Operating Results as incurred and included in other expenses. Where applicable, the consideration for the acquisition includes any asset or liability resulting from a contingent consideration arrangement, measured at its acquisition-date fair value. Subsequent changes in fair values are adjusted against the cost of the acquisition where they qualify as measurement period adjustments. All other subsequent changes in the fair value of contingent consideration classified as liabilities will be recognized in the Consolidated Statements of Operating Results, whereas changes in the fair values of contingent consideration classified within partnership capital are not subsequently re-measured. Where a business combination is achieved in stages, Brookfield Infrastructure’s previously held interests in the acquired entity are remeasured to fair value at the acquisition date, that is, the date Brookfield Infrastructure attains control and the resulting gain or loss, if any, is recognized in the Consolidated Statements of Operating Results. Amounts arising from interests in the acquiree prior to the acquisition date that have previously been recognized in other comprehensive income are reclassified to the Consolidated Statements of Operating Results, where such treatment would be appropriate if that interest were disposed of. If the initial accounting for a business combination is incomplete by the end of the reporting period in which the combination occurs, Brookfield Infrastructure reports provisional amounts for the items for which the accounting is incomplete. Those provisional amounts are adjusted during the measurement period, or additional assets or liabilities are recognized, to reflect new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the amounts recognized as of that date. The measurement period is the period from the date of acquisition to the date Brookfield Infrastructure obtains complete information about facts and circumstances that existed as of the acquisition date. The measurement period is subject to a maximum of one year subsequent to the acquisition date. If, after reassessment, Brookfield Infrastructure’s interest in the fair value of the acquiree’s identifiable net assets exceeds the sum of the consideration transferred, the amount of any non-controlling interests in the acquiree and the fair value of the acquirer’s previously held equity interest in the acquiree if any, the excess is recognized immediately in profit or loss as a bargain purchase gain. Contingent liabilities acquired in a business combination are initially measured at fair value at the date of acquisition. At the end of subsequent reporting periods, such contingent liabilities are measured at the higher of the amount that would be recognized in accordance with IAS 37 , Provisions, Contingent Liabilities and Contingent Assets (“IAS 37”) and the amount initially recognized less cumulative amount of income recognized in accordance with IFRS 15, Revenue from Contracts with Customers .
Cash and Cash Equivalents	Cash and Cash EquivalentsCash and cash equivalents include cash on hand and short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.
Accounts Receivable	Accounts ReceivableTrade receivables are recognized initially at their transaction price and subsequently measured at amortized cost using the effective interest method, less any allowance for expected credit losses.
Property, Plant and Equipment	Property, Plant and Equipment Brookfield Infrastructure uses the revaluation method of accounting for all classes of property, plant and equipment. Property, plant and equipment is initially measured at cost and subsequently carried at its revalued amount, being the fair value at the date of the revaluation less any subsequent accumulated depreciation and any accumulated impairment losses. Revaluations are made on at least an annual basis, and on a sufficient basis to ensure that the carrying amount does not differ significantly from fair value. Where the carrying amount of an asset is increased as a result of a revaluation, the increase is recognized in other comprehensive income or loss and accumulated in equity within the revaluation surplus reserve, unless the increase reverses a previously recognized impairment recorded through net income, in which case that portion of the increase is recognized in net income. Where the carrying amount of an asset is decreased, the decrease is recognized in other comprehensive income to the extent of any balance existing in revaluation surplus in respect of the asset, with the remainder of the decrease recognized in net income. Revaluation gains are included in other comprehensive income, but are not subsequently recycled into profit or loss. An item of property, plant and equipment and any significant part initially recognized is derecognized upon disposal or when no future economic benefits are expected from its use or disposal. The gain or loss arising on disposal or retirement of an item of property, plant and equipment is determined as the difference between the sales proceeds and the carrying amount of the asset and is recognized in the Consolidated Statements of Operating Results. However, any balance accumulated in revaluation surplus is subsequently recorded in retained earnings when an asset is derecognized and not transferred to profit or loss. Depreciation of an asset commences when it is available for use. Property, plant and equipment are depreciated on a straight-line or declining-balance basis over the estimated useful lives of each component of the assets as follows: Buildings Up to 75 years Transmission stations, towers and related fixtures Up to 40 years Leasehold improvements Up to 50 years Plant and equipment Up to 40 years Network systems Up to 65 years Track Up to 40 years District energy systems Up to 50 years Pipelines Up to 20 years Gas storage assets Up to 50 years Depreciation on property, plant and equipment is calculated on a straight-line or declining-balance basis so as to depreciate the net cost of each asset over its expected useful life to its estimated residual value. Leasehold improvements are depreciated over the period of the lease or estimated useful life, whichever is the shorter, using the straight-line method. The estimated useful lives, residual values and depreciation methods are reviewed at the end of each annual reporting period, with the effect of any changes recognized on a prospective basis.
Investment Property	Investment Property Brookfield Infrastructure uses the fair value method to account for assets classified as investment property. An asset is determined to be an investment property when it is principally held to earn rental income or for capital appreciation, or both. Investment property is initially measured at cost including transaction costs. Subsequent to initial recognition, investment properties are carried at fair value. Gains or losses arising from changes in fair value are included in profit or loss. Fair values are primarily determined by valuation of the lease term and freehold reversion. An income capitalization approach is used by applying a yield to the rental income of the capitalization rate that is reflective of the characteristics, location and market of each property. Fair value is estimated by management of our partnership with due consideration given to observable market inputs, where available.
Asset Impairment	Asset ImpairmentAt each reporting date Brookfield Infrastructure assesses whether for assets, other than those measured at fair value with changes in values recorded in profit or loss, there is any indication that such assets are impaired. This assessment includes a review of internal and external factors which includes, but is not limited to, changes in the technological, political, economic or legal environment in which the entity operates in, structural changes in the industry, changes in the level of demand, physical damage and obsolescence due to technological changes. An impairment is recognized if the recoverable amount, determined as the higher of the estimated fair value less costs of disposal or the discounted future cash flows generated from use and eventual disposal from an asset or cash generating unit is less than its carrying value. The projections of future cash flows take into account the relevant operating plans and management’s best estimate of the most probable set of conditions anticipated to prevail. Where an impairment loss subsequently reverses, the carrying amount of the asset or cash generating unit is increased to the lesser of the revised estimate of recoverable amount and the carrying amount that would have been recorded had no impairment loss been recognized previously.
Intangible Assets	Intangible Assets Intangible assets acquired in a business combination and recognized separately from goodwill are initially recognized at their fair value at the acquisition date. Brookfield Infrastructure’s intangible assets are comprised primarily of conservancy rights, service concession arrangements, customer order backlogs, track access rights, operating network agreements and customer contracts and relationships. Subsequent to initial recognition, intangible assets acquired in a business combination are reported at cost less accumulated amortization unless indefinite-lived and accumulated impairment losses, on the same basis as intangible assets acquired separately. Public service concessions that provide Brookfield Infrastructure the right to charge users for a service in which the service and fee is regulated by the grantor are accounted for as an intangible asset under IFRIC 12, Service Concession Arrangements . Concession arrangements were acquired as part of the acquisition of the Brazilian regulated gas transmission operation, Brazilian electricity transmission operation and Chilean, Indian and Peruvian toll roads and were initially recognized at their fair values. The intangible assets at the Brazilian regulated gas transmission operation and Brazilian electricity transmission operation relate to concession contracts, and are amortized on a straight-line basis over the life of the contractual arrangement. The intangible assets at the Chilean, Indian and Peruvian toll roads relate to the right to operate a road and charge users a specified tariff for a contractual length of time and is amortized over the life of the contractual arrangement with an average of 13, 16, and 22 years remaining, respectively. Gains or losses arising from derecognition of an intangible asset are measured as the difference between the net disposal proceeds and the carrying amount of the asset and are recognized in profit or loss when the asset is derecognized.
Goodwill	Goodwill Goodwill represents the excess of the price paid for the acquisition of an entity over the fair value of the net tangible and intangible assets and liabilities acquired. Goodwill is allocated to the cash generating unit or units to which it relates. Brookfield Infrastructure identifies cash generating units as identifiable groups of assets that are largely independent of the cash inflows from other assets or groups of assets. Goodwill is evaluated for impairment annually or more often if events or circumstances indicate there may be impairment. Impairment is determined for goodwill by assessing if the carrying value of a cash generating unit, including the allocated goodwill, exceeds its recoverable amount determined as the greater of the estimated fair value less costs of disposal or the value in use. Impairment losses recognized in respect of a cash generating unit are first allocated to the carrying value of goodwill and any excess is allocated to the carrying amount of assets in the cash generating unit. Any goodwill impairment is charged to profit or loss in the period in which the impairment is identified. Impairment losses on goodwill are not subsequently reversed. In the year of a business acquisition, the recoverability of the acquired goodwill is assessed by revisiting the assumptions of the related underwriting model. On disposal of a subsidiary, the attributable amount of goodwill is included in the determination of the gain or loss on disposal of the operation.
Revenue Recognition	Revenue Recognition Our partnership recognizes revenue when it transfers control of a product or service to a customer. Revenue is measured based on the consideration specified in a contract with a customer and excludes amounts collected on behalf of third parties. Brookfield Infrastructure recognizes revenue when the specific criteria have also been met for each of Brookfield Infrastructure’s activities as described below. Cash received by Brookfield Infrastructure from customers is recorded as deferred revenue until revenue recognition criteria are met. Utilities Revenue from utilities infrastructure is derived from the transmission of energy and natural gas, and from our commercial and residential distribution operations. Distribution and transmission revenue each contain a single performance obligation that is recognized over time. The connection revenue relating to Brookfield Infrastructure’s U.K. regulated distribution operation contains a distinct performance obligation that is recognized over the period that the connection is constructed, based on an input method of progress recognition on the basis that this methodology is most reflective of the underlying transfer of control. Performance obligations relating to commercial and residential distribution operations are satisfied over time as the services are rendered or upon commencement of a finance lease agreement. The sale of district energy solutions to customers contains a distinct performance obligation and revenue is recognized when installation is completed. The payment terms for all of our businesses in the utilities segment require payment upon completion, except for connections income whereby payment is typically collected up-front prior to the completion of any services. Transport Revenue from transport infrastructure consists primarily of freight, toll road operations, transportation services revenue, and from our Australian export terminal. These services consist of a single performance obligation and revenue is recognized over time when services are rendered, based primarily on usage or volume during the period. Terminal infrastructure revenue contains both a capacity charge and a handling charge associated with operating the terminal. The terminal infrastructure service contracts contain a performance obligation recognized over time pertaining to capacity for the period the services are provided and for handling services based on tons of coal shipped through the terminal when service is provided. The payment terms for all of our businesses in the transport segment require payment upon completion of the underlying transportation service. Midstream Revenue from midstream infrastructure consists primarily of midstream and storage services. Natural gas midstream services revenue consists of a single performance obligation and is recognized over time as services are rendered, based primarily on volume throughput or contracted capacity. Gas storage revenues contain both a capacity charge and a variable charge, however the associated services are highly interdependent and represent a single performance obligation that is satisfied over time as the services are provided. The payment terms for all of our businesses in the midstream segment require payment upon completion of the underlying service within a given period.
Financial Instruments and Hedge Accounting	Financial Instruments and Hedge Accounting (i) Financial Instrument Classification Our partnership classifies cash and cash equivalents and accounts receivable and other as amortized cost. Additionally, our partnership maintains a portfolio of marketable securities comprised of liquid equity and debt securities. The marketable securities are classified either as fair value through other comprehensive income (“FVTOCI”) or fair value through profit or loss (“FVTPL”). Derivative assets are classified as FVTPL, except for derivatives in certain hedging relationships. Other financial assets are classified as either amortized cost or FVTOCI. Financial assets classified as FVTPL or FVTOCI are subsequently measured at fair value at each reporting date. For financial assets classified as FVTPL, the change in fair value is recorded through profit or loss. For financial assets classified as FVTOCI, the change in fair value is recorded in other comprehensive income. The cumulative gains or losses related to FVTOCI equity instruments are not reclassified to profit or loss on disposal, whereas the cumulative gains or losses on all other FVTOCI assets are reclassified to profit or loss on disposal. For financial instruments at amortized cost or debt instruments at FVTOCI, the partnership assesses if there have been significant increases in credit risk since initial recognition to determine whether lifetime or 12-month expected credit losses should be recognized. Any related loss allowances are recorded through profit or loss. Borrowings, accounts payable and other, and preferred shares are classified as amortized cost, except for derivatives embedded in related financial instruments. Embedded derivatives and any other derivative liabilities are classified as FVTPL and are subsequently measured at fair value, except for derivatives in certain hedging relationships. Other financial liabilities are classified as either FVTPL or amortized cost. (ii) Hedge Accounting Brookfield Infrastructure selectively utilizes derivative financial instruments primarily to manage financial risks, including interest rate and foreign exchange risks. Derivative financial instruments are recorded at fair value. Hedge accounting is applied when the derivative is designated as a hedge of a specific exposure and that the hedging relationship meets all of the hedge effectiveness requirements. Hedge accounting is discontinued prospectively when the derivative no longer qualifies as a hedge or the hedging relationship is terminated. Once discontinued, the cumulative change in fair value of a derivative that was previously recorded in other comprehensive income by the application of hedge accounting is recognized in profit or loss over the remaining term of the original hedging relationship as amounts related to the hedged item are recognized in profit or loss. The assets or liabilities relating to unrealized mark-to-market gains and losses on derivative financial instruments are recorded in financial assets and financial liabilities, respectively. Realized and unrealized gains and losses on foreign exchange contracts, designated as hedges of currency risks relating to a net investment in a subsidiary with a functional currency other than the U.S. dollar are included in equity and are included in net income in the period in which the subsidiary is disposed of or to the extent partially disposed and control is not retained. Derivative financial instruments that are designated as hedges to offset corresponding changes in the fair value of assets and liabilities and cash flows are measured at estimated fair value with changes in fair value recorded in profit or loss or as a component of equity as applicable.
Income Taxes	Income Taxes Income tax expense represents the sum of the tax accrued in the period and deferred income tax. (i) Current income tax Current income tax assets and liabilities are measured at the amount expected to be paid to tax authorities, net of recoveries based on the tax rates and laws enacted or substantively enacted at the reporting date. Current income tax relating to items recognized directly in partnership capital and other comprehensive income are also recognized directly in partnership capital and other comprehensive income, respectively. (ii) Deferred income tax Deferred income tax liabilities are provided for using the liability method on temporary differences between the tax bases used in the computation of taxable income and carrying amounts of assets and liabilities in the consolidated financial statements. Deferred income tax assets are recognized for all deductible temporary differences, carry forward of unused tax credits and unused tax losses, to the extent that it is probable that deductions, tax credits and tax losses can be utilized. Such deferred income tax assets and liabilities are not recognized if the temporary difference arises from goodwill or from the initial recognition of other assets and liabilities in a transaction that affects neither the taxable income nor the accounting income, other than in a business combination. The carrying amount of deferred income tax assets are reviewed at each reporting date and reduced to the extent it is no longer probable that the income tax asset will be recovered. Deferred income tax liabilities are recognized for taxable temporary differences associated with investments in subsidiaries and associates, and interests in joint ventures, except where Brookfield Infrastructure is able to control the reversal of the temporary difference and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred income tax assets arising from deductible temporary differences associated with such investments and interests are only recognized to the extent that it is probable that there will be sufficient taxable income against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future. Deferred income tax assets and liabilities are measured at the tax rates that are expected to apply in the period in which the liability is settled or the asset realized, based on tax rates and tax laws that have been enacted or substantively enacted by the end of the reporting period. The measurement of deferred income tax liabilities and assets reflect the tax consequences that would follow from the manner in which Brookfield Infrastructure expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities. Deferred income tax assets and liabilities are offset when there is a legally enforceable right to set off current tax assets against current tax liabilities and when they relate to income taxes levied by the same taxation authority within a single taxable entity or Brookfield Infrastructure intends to settle its current tax assets and liabilities on a net basis in the case where there exist different taxable entities in the same taxation authority and when there is a legally enforceable right to set off current tax assets against current tax liabilities.
Assets Held for Sale	Assets Held for Sale Non-current assets and disposal groups are classified as held for sale if their carrying amount will be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable and the non-current asset or disposal group is available for immediate sale in its present condition. Management must be committed to the sale, which should be expected to qualify for recognition as a completed sale within one year from the date of classification subject to limited exceptions. When Brookfield Infrastructure is committed to a sale plan involving loss of control of a subsidiary, all of the assets and liabilities of that subsidiary are classified as held for sale when the criteria described above are met, regardless of whether Brookfield Infrastructure will retain a non-controlling interest in its former subsidiary after the sale. Non-current assets and disposal groups classified as held for sale are measured at the lower of their previous carrying amount and fair value less costs to sell. Non-current assets classified as held for sale and the assets of a disposal group are presented separately from other assets in the Consolidated Statements of Financial Position and are classified as current. The liabilities of a disposal group classified as held for sale are presented separately from other liabilities in the Consolidated Statements of Financial Position. Once classified as held for sale, property, plant and equipment and intangible assets are not depreciated or amortized, respectively.
Provisions	Provisions Provisions are recognized when Brookfield Infrastructure has a present obligation, either legal or constructive, as a result of a past event, it is probable that Brookfield Infrastructure will be required to settle the obligation, and a reliable estimate can be made of the amount of the obligation. The amount recognized as a provision is the best estimate of the consideration required to settle the present obligation at the end of the reporting period, taking into account the risks and uncertainties surrounding the obligation. Where a provision is measured using the cash flows estimated to settle the obligation, its carrying amount is the present value of those cash flows. When some or all of the economic benefits required to settle a provision are expected to be recovered from a third party, the receivable is recognized as an asset if it is virtually certain that reimbursement will be received and the amount of the receivable can be measured reliably.
Critical Accounting Judgments and Key Sources of Estimation Uncertainty	Critical Accounting Judgments and Key Sources of Estimation UncertaintyThe preparation of financial statements requires management to make critical judgments, estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses that are not readily apparent from other sources, during the reporting period. These estimates and associated assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates. The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period, or in the period of the revision and future periods if the revision affects both current and future periods. Critical judgments and estimates made by management and utilized in the normal course of preparing Brookfield Infrastructure’s consolidated financial statements are outlined below. (i) Common control transactions IFRS 3 (2008) Business Combinations does not include specific measurement guidance for transfers of businesses or subsidiaries between entities under common control. Accordingly, Brookfield Infrastructure has developed a policy to account for such transactions taking into consideration other guidance in the IFRS framework and pronouncements of other standard-setting bodies. Brookfield Infrastructure’s policy is to record assets and liabilities recognized as a result of transactions between entities under common control at the carrying value on the transferor’s financial statements, and to have the Consolidated Statements of Financial Position, Consolidated Statements of Operating Results, Consolidated Statements of Comprehensive Income and Statements of Cash Flows reflect the results of combining entities for all periods presented for which the entities were under the transferor’s common control, irrespective of when the combination takes place. (ii) Financial instruments Brookfield Infrastructure’s accounting policies relating to derivative financial instruments are described in Note 3(m), Financial Instruments and Hedge Accounting. The critical judgments inherent in these policies relate to applying the criteria to the assessment of the effectiveness of hedging relationships. Estimates and assumptions used in determining the fair value of financial instruments are equity and commodity prices; future interest rates; the credit worthiness of the company relative to its counterparties; the credit risk of our partnership and counterparty; estimated future cash flows; and discount rates. (iii) Revaluation of property, plant and equipment Property, plant and equipment is revalued on a regular basis. The critical estimates and assumptions underlying the valuation of property, plant and equipment are set out in Note 13, Property, Plant and Equipment. (iv) Fair values in business combinations Brookfield Infrastructure accounts for business combinations using the acquisition method of accounting. This method requires the application of fair values for both the consideration given and the assets and liabilities acquired. The calculation of fair values is often predicated on estimates and judgments including future cash flows discounted at an appropriate rate to reflect the risk inherent in the acquired assets and liabilities (refer to Note 6, Acquisition of Businesses for details of business combinations). The determination of the fair values may remain provisional for up to 12 months from the date of acquisition due to the time required to obtain independent valuations of individual assets and to complete assessments of provisions. When the accounting for a business combination has not been completed as at the reporting date, this is disclosed in the financial statements, including observations on the estimates and judgments made as of the reporting date. (v) Assets held for sale Brookfield Infrastructure applies judgment to determine whether an asset or disposal group is available for immediate sale in its present condition and that its sale is highly probable and therefore should be classified as held for sale at the balance sheet date. Conditions that support a highly probable sale include the following: an appropriate level of management is committed to a plan to sell the asset or disposal group, an active program to locate a buyer is initiated, the asset is being actively marketed for sale at a price reasonable in relation to its fair value, the sale is highly probably within 12 months of classification as held for sale, and actions required to complete the plan indicate that it is unlikely that plan will be significantly changed or withdrawn. (vi) Impairment of goodwill, intangibles with indefinite lives and investment in associates and joint ventures The impairment assessment of goodwill and intangible assets with indefinite lives requires estimation of the value-in-use or fair value less costs of disposal of the cash-generating units or groups of cash generating units to which goodwill or the intangible asset has been allocated. Brookfield Infrastructure uses the following critical assumptions and estimates: the circumstances that gave rise to the goodwill, timing and amount of future cash flows expected from the cash-generating units; discount rates; terminal capitalization rates; terminal valuation dates and useful lives. The impairment assessment of investments in associates and joint ventures requires estimation of the recoverable amount of the asset. Other estimates utilized in the preparation of our partnership’s financial statements are: depreciation and amortization rates and useful lives; recoverable amount of goodwill and intangible assets; ability to utilize tax losses and other tax measurements. Other critical judgments utilized in the preparation of our partnership’s financial statements include the methodologies for calculating amortization, determination of operating segments and determination of control.
Recently adopted accounting standard amendments	Recently adopted accounting standards Brookfield Infrastructure provides an update to the previously announced amendment to interest rate benchmarks. The impact of these amendments on our partnership’s accounting policies are as follows: Amendments to IFRS 9 and IFRS 7: Disclosures Interbank offered rates (“IBOR”) reform refers to the global reform of interest reference rates, which includes the replacement of specified IBORs with alternative benchmark rates. It is currently expected that Secured Overnight Financing Rate (“SOFR”) will replace US$ LIBOR, Sterling Overnight Index Average (“SONIA”) will replace £ LIBOR, and Euro Short-term Rate (“€STR”) will replace € EURIBOR. The partnership adopted Interest Rate Benchmark Reform - Amendments to IFRS 9, and IFRS 7, issued by the IASB in September 2019 (“Phase I Amendments”), effective October 1, 2019 in advance of its mandatory effective date. The Phase I Amendments provided clarity where uncertainty could arise in the lead-up to transition. The IBOR Phase I Amendments have been applied retrospectively to hedging relationships existing at the start of the reporting period or designated subsequently, and to the amount accumulated in the cash flow hedge reserve at that date. The IBOR Phase I Amendments provide temporary relief from applying specific hedge accounting requirements to the partnership’s hedging relationships that are directly affected by IBOR reform, which primarily include US$ LIBOR, £ LIBOR, and € EURIBOR. The relief provided has the effect that the Partnership should not have to discontinue hedging relationships solely due to the uncertainty arising from IBOR reform. In assessing whether a hedge is expected to be highly effective on a forward-looking basis, the partnership assumes the interest rate benchmarks associated with our partnership’s hedges are generally not altered by IBOR reform. These reliefs cease to apply to a hedged item or hedging instrument, as applicable, at the earlier of (i) when the uncertainty arising from IBOR reform is no longer present with respect to the timing and amount of the interest rate benchmark based future cash flows, and (ii) when the hedging relationship is discontinued. The Phase I Amendments had no impact on our partnership since these amendments enable our partnership to continue hedge accounting for hedging relationships which have been previously designated. Standards issued but not yet adopted Amendments to IFRS 9, IAS 39, IFRS 7, IFRS 4 and IFRS 16: Disclosures On August 27, 2020, the IASB published Interest Rate Benchmark Reform - Amendments to IFRS 9, IAS 39, IFRS 7, IFRS 4 and IFRS 16 (“Phase II Amendments”), effective January 1, 2021, with early adoption permitted. The Phase II Amendments provide additional guidance to address issues that will arise during the transition of benchmark interest rates. The Phase II Amendments primarily relate to the modification of financial assets, financial liabilities and lease liabilities where the basis for determining the contractual cash flows changes as a result of IBOR reform, allowing for prospective application of the applicable benchmark interest rate and to the application of hedge accounting, providing an exception such that changes in the formal designation and documentation of hedge accounting relationships that are needed to reflect the changes required by IBOR reform do not result in the discontinuation of hedge accounting or the designation of new hedging relationships.

SUBSIDIARIES (Tables)

SUBSIDIARIES (Tables)	12 Months Ended
	Dec. 31, 2020
Interests In Other Entities [Abstract]
Disclosure of interests in subsidiaries	The following provides information about our partnership’s wholly-owned subsidiaries as of December 31, 2020 and 2019: Ownership Country of Defined Name Name of entity 2020 2019 Transport Australian rail operation Arc Infrastructure Holdings No. 1 Pty Ltd Australia 100 100 The following table presents details of non-wholly owned subsidiaries of our partnership: Country of Effective Ownership Voting Defined Name Name of entity 2020 2019 2020 2019 Utilities U.K. regulated distribution operation BUUK Infrastructure No 1 Limited U.K. 80 80 80 80 Canadian district energy operation Enwave Energy Corporation (1) Canada 25 25 100 100 U.S. district energy operation Enwave USA (1) U.S. 40 40 100 100 Colombian regulated distribution operation Empresa de Energia de Boyaca S.A. (1),(3) Colombia — 17 — 100 Brazilian regulated gas transmission operation Nova Transportadora do Sudeste S.A. (1) Brazil 28 28 90 90 Colombian natural gas distribution operation Vanti S.A. ESP (1),(2) Colombia 21 16 75 55 Brazilian electricity transmission operation Odoya Transmissora de Energia S.A. & Esperanza Transmissora de Energia S.A. (1),(2) Brazil 31 31 100 100 North American residential energy infrastructure operation Enercare Inc. (1) Canada 30 30 100 100 Indian gas transmission operation Pipeline Infrastructure Pvt. Ltd. (1),(2) India 24 24 83 83 Transport Australian export terminal DBCT Management Pty Ltd (4) Australia — 71 — 100 North American rail operation Genesee & Wyoming Inc. (1),(2) U.S. 9 9 72 72 U.K. ports operation Brookfield Port Acquisitions (UK) Limited (1) U.K. 59 59 100 100 Australian port operation Linx Cargo Care Group Pty Ltd (1) Australia 27 27 67 67 Chilean toll roads Sociedad Concesionaria Vespucio Norte Express S.A. (1),(3) Chile 17 34 60 60 Indian toll roads BIF India Holdings Pte Ltd (1) Singapore 40 40 93 93 Peruvian toll roads Rutas de Lima S.A.C (1) Peru 17 17 57 57 Indian toll roads Simhapuri Expressway Limited (1) India 29 29 93 93 Indian toll roads Rayalseema Expressway Private Limited (1) India 26 26 84 84 Midstream North American gas storage operation Warwick Gas Storage L.P. (1) Canada 25 25 100 100 North American gas storage operation Lodi Gas Storage LLC (1) U.S. 40 40 100 100 North American gas storage operation Rockpoint Gas Storage Partners L.P. (1) U.S. 40 40 100 100 Western Canadian natural gas gathering and processing operation NorthRiver Midstream Inc. (1),(2) Canada 29 29 100 100 Data U.S. data center operation Dawn Acquisitions LLC (1) U.S. 29 29 100 100 Australian data center operation Ruby Pooling Hold Trust (1),(2) Australia 29 29 100 100 Indian telecom towers operation Summit Digitel Infrastructure Private Limited (1),(2) India 17 — 62 — U.K. telecom towers operation WIG Holdings I Limited (1),(2) U.K. 25 25 100 100 Corporate Holding LP Brookfield Infrastructure L.P. Bermuda 70 70 100 100 (1) For the above noted subsidiaries, our partnership has entered into voting arrangements to provide our partnership with the ability to direct the relevant activities of the investee. Our partnership controls these investees given that our partnership is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee. Our partnership exercises judgment to determine the level of variability that will achieve control over an investee, particularly in circumstances where our partnership’s voting interest differs from its ownership interest in an investee. The following were considered to determine whether our partnership controls these investees: the degree of power (if any) held by other investors, the degree of exposure to variability of each investor, the determination of whether any general partner removal rights are substantive and the purpose and design of the investee. (2) See Note 6, Acquisition of Businesses, for further details. (3) See Note 5, Disposition of Businesses, for further details. (4) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian regulated terminal operation. Upon partial disposition, the operation ceased to meet the definition of a non-wholly owned subsidiary. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details.

SIGNIFICANT ACCOUNTING POLICI_3

SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2020
Corporate Information And Statement Of IFRS Compliance [Abstract]
Disclosure of estimated useful lives of property, plant and equipment	Property, plant and equipment are depreciated on a straight-line or declining-balance basis over the estimated useful lives of each component of the assets as follows: Buildings Up to 75 years Transmission stations, towers and related fixtures Up to 40 years Leasehold improvements Up to 50 years Plant and equipment Up to 40 years Network systems Up to 65 years Track Up to 40 years District energy systems Up to 50 years Pipelines Up to 20 years Gas storage assets Up to 50 years

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2020
Operating Segments [Abstract]
Summary of financial information by segment	FOR THE YEAR ENDED DECEMBER 31, 2020 US$ MILLIONS Total attributable to Brookfield Infrastructure Contribution Attributable As per IFRS financials (1) Utilities Transport Midstream Data Corporate Total Revenues (2) $ 1,434 $ 1,573 $ 572 $ 519 $ — $ 4,098 $ (1,379) $ 6,166 $ 8,885 Costs attributed to revenues (580) (767) (193) (253) — (1,793) 600 (3,650) (4,843) General and administrative costs — — — — (312) (312) — — (312) Adjusted EBITDA 854 806 379 266 (312) 1,993 (779) 2,516 Other (expense) income (43) (2) 3 (1) 127 84 17 (188) (87) Interest expense (152) (214) (93) (69) (95) (623) 177 (733) (1,179) FFO 659 590 289 196 (280) 1,454 (585) 1,595 Depreciation and amortization (268) (419) (153) (194) — (1,034) 471 (1,142) (1,705) Deferred taxes (80) 30 (10) 74 (11) 3 (65) 8 (54) Mark-to-market on hedging items and other (91) (116) (31) (44) 253 (29) 48 49 68 Share of earnings from associates — — — — — — 131 — 131 Net income attributable to non-controlling interest — — — — — — — (510) (510) Net income (loss) attributable to partnership (3) $ 220 $ 85 $ 95 $ 32 $ (38) $ 394 $ — $ — $ 394 FOR THE YEAR ENDED DECEMBER 31, 2019 US$ MILLIONS Total attributable to Brookfield Infrastructure Contribution Attributable As per IFRS financials (1) Utilities Transport Midstream Data Corporate Total Revenues (2) $ 1,432 $ 1,614 $ 491 $ 336 $ — $ 3,873 $ (1,424) $ 4,148 $ 6,597 Costs attributed to revenues (582) (781) (171) (161) — (1,695) 649 (2,349) (3,395) General and administrative costs — — — — (279) (279) — — (279) Adjusted EBITDA 850 833 320 175 (279) 1,899 (775) 1,799 Other (expense) income (31) (3) 10 3 91 70 11 (109) (28) Interest expense (147) (227) (86) (42) (83) (585) 173 (492) (904) FFO 672 603 244 136 (271) 1,384 (591) 1,198 Depreciation and amortization (264) (370) (131) (129) (1) (895) 399 (718) (1,214) Deferred taxes (41) 25 (55) 10 (16) (77) 52 (3) (28) Mark-to-market on hedging items and other (64) (168) 132 (30) (49) (179) (84) (60) (323) Share of earnings from associates — — — — — — 224 — 224 Net income attributable to non-controlling interest — — — — — — — (417) (417) Net income (loss) attributable to partnership (3) $ 303 $ 90 $ 190 $ (13) $ (337) $ 233 $ — $ — $ 233 FOR THE YEAR ENDED DECEMBER 31, 2018 US$ MILLIONS Total attributable to Brookfield Infrastructure Contribution Attributable As per IFRS financials (1) Utilities Transport Midstream Data Corporate Total Revenues (2) $ 1,070 $ 1,831 $ 434 $ 170 $ — $ 3,505 $ (1,524) $ 2,671 $ 4,652 Costs attributed to revenues (371) (1,044) (177) (77) — (1,669) 833 (1,372) (2,208) General and administrative costs — — — — (223) (223) — — (223) Adjusted EBITDA 699 787 257 93 (223) 1,613 (691) 1,299 Other (expense) income (25) 2 17 (4) 72 62 11 (107) (34) Interest expense (103) (203) (68) (12) (58) (444) 134 (245) (555) FFO 571 586 206 77 (209) 1,231 (546) 947 Depreciation and amortization (211) (361) (114) (72) — (758) 370 (413) (801) Deferred taxes (34) 38 (9) 7 10 12 (44) (14) (46) Mark-to-market on hedging items and other (99) (215) (49) (6) 85 (284) 233 (124) (175) Gain on sale of associate, net of tax — — — — 209 209 — — 209 Share of losses from associates — — — — — — (13) — (13) Net income attributable to non-controlling interest — — — — — — — (396) (396) Net income attributable to partnership (3) $ 227 $ 48 $ 34 $ 6 $ 95 $ 410 $ — $ — $ 410 (1) The above table provides each segment’s results in the format that management organizes its reporting segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations accounted for using the consolidation and equity methods under IFRS. The above table reconciles Brookfield Infrastructure’s proportionate results to our partnership’s Consolidated Statements of Operating Results on a line by line basis by aggregating the components comprising the earnings from our partnership’s investments in associates and reflecting the portion of each line item attributable to non-controlling interests. (2) Revenues on a consolidated basis were $4,083 million (2019: $4,265 million, 2018: $2,811 million) from our utilities segment, $3,449 million (2019: $1,617 million, 2018: $1,629 million) from our transport segment, $643 million (2019: $399 million, 2018: $212 million) from our midstream segment and $710 million (2019: $316 million, 2018: $nil) from our data segment. (3) Includes net income (loss) attributable to limited partners, non-controlling interests—Redeemable Partnership Units held by Brookfield, non-controlling interests—Exchange LP Units, non-controlling interests - BIPC exchangeable shares, general partner and limited partners. The following is an analysis of Brookfield Infrastructure’s assets by reportable operating segment: Total Attributable to Brookfield Infrastructure Contribution Attributable Working As per IFRS financials (1) AS AT Utilities Transport Midstream Data Corporate Brookfield Total assets $ 6,814 $ 9,155 $ 3,829 $ 3,338 $ (2,062) $ 21,074 $ (4,895) $ 37,851 $ 7,301 $ 61,331 Total Attributable to Brookfield Infrastructure Contribution Attributable Working As per IFRS financials (1) AS AT Utilities Transport Midstream Data Corporate Brookfield Total assets $ 6,679 $ 7,962 $ 3,689 $ 2,204 $ (1,284) $ 19,250 $ (2,884) $ 32,621 $ 7,321 $ 56,308 (1) The above table provides each segment’s assets in the format that management organizes its reporting segments to make operating decisions and assess performance. Each segment is presented on a proportionate basis, taking into account Brookfield Infrastructure’s ownership in operations using consolidation and the equity method whereby our partnership either controls or exercises significant influence over the investment respectively. The above table reconciles Brookfield Infrastructure’s proportionate assets to total assets presented on our partnership’s Consolidated Statements of Financial Position by removing net liabilities contained within investments in associates and joint ventures and reflecting the assets attributable to non-controlling interests, and adjusting for working capital assets which are netted against working capital liabilities.
Summary of financial information by geographic regions	The following table disaggregates revenues by geographical region. US$ MILLIONS 2020 2019 2018 United States $ 2,279 $ 921 $ 293 Canada 1,461 976 379 United Kingdom 1,305 688 653 Brazil 981 1,142 1,112 Australia 916 1,031 1,104 Colombia 799 1,054 693 India 740 399 60 Chile 117 163 168 Peru 81 107 92 Other 206 116 98 $ 8,885 $ 6,597 $ 4,652 Non-current assets US$ MILLIONS 2020 2019 United States $ 13,372 $ 13,671 India 10,986 3,150 Canada 10,057 9,243 United Kingdom 8,940 7,196 Brazil 5,404 7,103 Australia 4,042 5,488 Colombia 1,256 1,166 Peru 1,247 1,337 Europe 1,022 764 Chile 841 821 Other 453 528 $ 57,620 $ 50,467

ACQUISITION OF BUSINESSES (Tabl

ACQUISITION OF BUSINESSES (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of detailed information about business combination [abstract]
Disclosure of detailed information about business combinations	Consideration transferred US$ MILLIONS Cash $ 584 Total Consideration $ 584 Fair value of assets and liabilities acquired as of August 31, 2020 (provisional) (1) : US$ MILLIONS Accounts receivable and other $ 408 Property, plant and equipment 7,334 Intangible assets (2) 532 Goodwill 27 Accounts payable and other liabilities (417) Non-recourse borrowings (2,356) Lease liabilities (2,101) Deferred income tax liabilities (22) Net assets acquired before non-controlling interest 3,405 Non-controlling interest (3) (2,821) Net assets acquired $ 584 (1) The fair values of all acquired assets, liabilities, and non-controlling interest for this operation have been determined on a provisional basis given the proximity of the acquisition to the reporting date, pending finalization of the determination of the fair values of the acquired assets and liabilities. Our partnership is in the process of obtaining additional information in order to assess the fair value of property, plant and equipment, intangible assets, and liabilities as well as the initial measurement of right-of-use assets and liabilities as at the date of acquisition. (2) Refer to Note 14, Intangible Assets, for further details. (3) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date, and includes capital provided by non-controlling interest in the form of a shareholder loan to the operating business. Consideration transferred US$ MILLIONS Cash $ 377 Total Consideration $ 377 Fair value of assets and liabilities acquired as of December 31, 2019: US$ MILLIONS Accounts receivable and other $ 5 Property, plant and equipment 1,198 Intangible assets 74 Goodwill 218 Deferred income tax assets 41 Accounts payable and other liabilities (218) Net assets acquired before non-controlling interest 1,318 Non-controlling interest (1) (941) Net assets acquired $ 377 (1) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. Consideration transferred US$ MILLIONS Cash $ 602 Total Consideration $ 602 Fair value of assets and liabilities acquired as of December 30, 2019: US$ MILLIONS Cash and cash equivalents $ 67 Accounts receivable and other 509 Assets classified as held for sale (1) 1,584 Property, plant and equipment 5,283 Intangible assets (2) 1,992 Investment in associate 48 Goodwill 2,042 Accounts payable and other liabilities (612) Non-recourse borrowings (1,567) Liabilities directly associated with assets classified as held for sale (1) (893) Other liabilities (566) Deferred income tax liabilities (1,111) Net assets acquired before non-controlling interest 6,776 Non-controlling interest (3) (6,174) Net assets acquired $ 602 (1) Brookfield Infrastructure agreed to sell the Australian operations of G&W. As a result, the assets and liabilities of these businesses were classified as held for sale as at December 31, 2020. The sale was completed on February 15, 2020. Refer to Note 5, Disposition of Businesses, for further details. (2) Refer to Note 14, Intangible Assets, for details. (3) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. Consideration transferred US$ MILLIONS Cash $ 73 Deferred consideration 68 Total Consideration $ 141 Fair value of assets and liabilities acquired as of December 19, 2019: US$ MILLIONS Cash and cash equivalents $ 9 Accounts receivable and other 18 Property, plant and equipment 95 Intangible assets (1) 465 Goodwill 301 Accounts payable and other liabilities (53) Non-recourse borrowings (195) Deferred income tax liability (76) Net assets acquired before non-controlling interest 564 Non-controlling interest (2) (423) Net assets acquired $ 141 (1) Refer to Note 14, Intangible Assets, for details. (2) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. Consideration transferred US$ MILLIONS Cash $ 443 Total Consideration $ 443 Fair value of assets and liabilities acquired as of March 22, 2019: US$ MILLIONS Accounts receivable and other $ 94 Property, plant and equipment 2,134 Intangible assets 295 Accounts payable and other liabilities (66) Net assets acquired before non-controlling interest 2,457 Non-controlling interest (1) (2,014) Net assets acquired $ 443 (1) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. Consideration transferred US$ MILLIONS Cash $ 78 Total Consideration $ 78 Fair value of assets and liabilities acquired as of January 4, 2019: US$ MILLIONS Accounts receivable and other $ 2 Investment properties 211 Goodwill 68 Accounts payable and other liabilities (9) Net assets acquired before non-controlling interest 272 Non-controlling interest (1) (194) Net assets acquired $ 78 (1) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date. The following table summarizes the purchase price allocation in aggregate of individually insignificant business combinations that were completed in 2019. US$ MILLIONS Cash $ 24 Pre-existing interest in business (1) 30 Total Consideration $ 54 (1) Prior to the acquisition, Brookfield held an interest in two of the acquirees which were accounted for using the equity method. Fair value of assets and liabilities acquired during the year to date: US$ MILLIONS Cash and cash equivalents $ 16 Accounts receivable and other 6 Intangible assets 422 Goodwill 15 Accounts payable and other liabilities (21) Non-recourse borrowings (210) Deferred income tax liabilities (55) Net assets acquired before non-controlling interest 173 Non-controlling interest (1) (119) Net assets acquired $ 54 (1) Non-controlling interest represents the consideration paid for the interest not acquired by Brookfield Infrastructure, measured at fair value at the acquisition date.

FAIR VALUE OF FINANCIAL INSTR_2

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Measurement [Abstract]
Disclosure of financial assets	The following table provides the allocation of financial instruments and their associated financial instrument classifications as at December 31, 2020: US$ MILLIONS Financial Instrument Classification MEASUREMENT BASIS Fair value through profit or loss Fair value through OCI Amortized Cost Total Financial assets Cash and cash equivalents $ — $ — $ 867 $ 867 Accounts receivable and other — — 2,031 2,031 Financial assets (current and non-current) (1) 523 36 322 881 Marketable securities 323 203 — 526 Total $ 846 $ 239 $ 3,220 $ 4,305 Financial liabilities Corporate borrowings $ — $ — $ 3,158 $ 3,158 Non-recourse borrowings (current and non-current) — — 20,020 20,020 Accounts payable and other — — 6,548 6,548 Financial liabilities (current and non-current) (1) 931 — 2,443 3,374 Preferred shares (2) — — 20 20 Total $ 931 $ — $ 32,189 $ 33,120 (1) Derivative instruments which are elected for hedge accounting totaling $373 million are included in financial assets and $572 million of derivative instruments are included in financial liabilities. (2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield. The following table provides the allocation of financial instruments and their associated financial instrument classifications as at December 31, 2019: US$ MILLIONS Financial Instrument Classification MEASUREMENT BASIS Fair value through profit or loss Fair value Amortized Cost Total Financial assets Cash and cash equivalents $ — $ — $ 827 $ 827 Accounts receivable and other — — 1,909 1,909 Financial assets (current and non-current) (1) 893 16 144 1,053 Marketable securities 69 73 — 142 Total $ 962 $ 89 $ 2,880 $ 3,931 Financial liabilities Corporate borrowings $ — $ — $ 2,475 $ 2,475 Non-recourse borrowings (current and non-current) — — 18,544 18,544 Accounts payable and other — — 3,676 3,676 Financial liabilities (current and non-current) (1) 490 — 1,683 2,173 Preferred shares (2) — — 20 20 Total $ 490 $ — $ 26,398 $ 26,888 (1) Derivative instruments which are elected for hedge accounting totaling $694 million are included in financial assets and $285 million of derivative instruments are included in financial liabilities. (2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.
Disclosure of financial liabilities	The following table provides the allocation of financial instruments and their associated financial instrument classifications as at December 31, 2020: US$ MILLIONS Financial Instrument Classification MEASUREMENT BASIS Fair value through profit or loss Fair value through OCI Amortized Cost Total Financial assets Cash and cash equivalents $ — $ — $ 867 $ 867 Accounts receivable and other — — 2,031 2,031 Financial assets (current and non-current) (1) 523 36 322 881 Marketable securities 323 203 — 526 Total $ 846 $ 239 $ 3,220 $ 4,305 Financial liabilities Corporate borrowings $ — $ — $ 3,158 $ 3,158 Non-recourse borrowings (current and non-current) — — 20,020 20,020 Accounts payable and other — — 6,548 6,548 Financial liabilities (current and non-current) (1) 931 — 2,443 3,374 Preferred shares (2) — — 20 20 Total $ 931 $ — $ 32,189 $ 33,120 (1) Derivative instruments which are elected for hedge accounting totaling $373 million are included in financial assets and $572 million of derivative instruments are included in financial liabilities. (2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield. The following table provides the allocation of financial instruments and their associated financial instrument classifications as at December 31, 2019: US$ MILLIONS Financial Instrument Classification MEASUREMENT BASIS Fair value through profit or loss Fair value Amortized Cost Total Financial assets Cash and cash equivalents $ — $ — $ 827 $ 827 Accounts receivable and other — — 1,909 1,909 Financial assets (current and non-current) (1) 893 16 144 1,053 Marketable securities 69 73 — 142 Total $ 962 $ 89 $ 2,880 $ 3,931 Financial liabilities Corporate borrowings $ — $ — $ 2,475 $ 2,475 Non-recourse borrowings (current and non-current) — — 18,544 18,544 Accounts payable and other — — 3,676 3,676 Financial liabilities (current and non-current) (1) 490 — 1,683 2,173 Preferred shares (2) — — 20 20 Total $ 490 $ — $ 26,398 $ 26,888 (1) Derivative instruments which are elected for hedge accounting totaling $694 million are included in financial assets and $285 million of derivative instruments are included in financial liabilities. (2) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield.
Carrying and fair values of financial assets	The following table provides the carrying values and fair values of financial instruments as at December 31, 2020 and December 31, 2019: Dec. 31, 2020 Dec. 31, 2019 US$ MILLIONS Carrying Value Fair Value Carrying Value Fair Value Financial assets Cash and cash equivalents $ 867 $ 867 $ 827 $ 827 Accounts receivable and other 2,031 2,031 1,909 1,909 Financial assets (current and non-current) 881 881 1,053 1,053 Marketable securities 526 526 142 142 Total $ 4,305 $ 4,305 $ 3,931 $ 3,931 The fair value of our partnership’s financial assets and financial liabilities are measured at fair value on a recurring basis. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s financial assets and financial liabilities: US$ MILLIONS Fair value hierarchy Dec. 31, 2020 Dec. 31, 2019 Marketable securities Level 1 (1) $ 526 $ 142 Foreign currency forward contracts Level 2 (2) Financial asset $ 115 $ 140 Financial liability 251 97 Interest rate swaps & other Level 2 (2) Financial asset $ 438 $ 765 Financial liability 561 311 Other contracts Level 3 (3) Financial asset $ 6 $ 4 Financial liability 119 82 (1) Valuation technique: Quoted bid prices in an active market. (2) Valuation technique: Discounted cash flow. Future cash flows are estimated based on forward exchange and interest rates (from observable forward exchange and interest rates at the end of the reporting period) and contract forward rates, discounted at a rate that reflects our credit risk and the credit risk of various counterparties. (3) Valuation technique: Discounted cash flow. Future cash flows primarily driven by assumptions concerning the amount and timing of estimated future cash flows and discount rates.
Carrying and fair values of financial liabilities	Dec. 31, 2020 Dec. 31, 2019 US$ MILLIONS Carrying Value Fair Value Carrying Value Fair Value Financial liabilities Corporate borrowings (1) $ 3,158 $ 3,350 $ 2,475 $ 2,507 Non-recourse borrowings (2) 20,020 20,328 18,544 18,891 Accounts payable and other 6,548 6,548 3,676 3,676 Preferred shares (3) 20 20 20 20 Financial liabilities (current and non-current) 3,374 3,374 2,173 2,173 Total $ 33,120 $ 33,620 $ 26,888 $ 27,267 (1) Corporate borrowings are classified under level 1 of the fair value hierarchy; quoted prices in an active market are available. (2) Non-recourse borrowings are classified under level 2 of the fair value hierarchy with the exception of certain borrowings at our U.K. port operation and margin loans associated with certain financial assets, which are classified under level 1. For level 2 fair values, future cash flows are estimated based on observable forward interest rates at the end of the reporting period. (3) $20 million of preferred shares issued to wholly-owned subsidiaries of Brookfield. The fair value of our partnership’s financial assets and financial liabilities are measured at fair value on a recurring basis. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s financial assets and financial liabilities: US$ MILLIONS Fair value hierarchy Dec. 31, 2020 Dec. 31, 2019 Marketable securities Level 1 (1) $ 526 $ 142 Foreign currency forward contracts Level 2 (2) Financial asset $ 115 $ 140 Financial liability 251 97 Interest rate swaps & other Level 2 (2) Financial asset $ 438 $ 765 Financial liability 561 311 Other contracts Level 3 (3) Financial asset $ 6 $ 4 Financial liability 119 82 (1) Valuation technique: Quoted bid prices in an active market. (2) Valuation technique: Discounted cash flow. Future cash flows are estimated based on forward exchange and interest rates (from observable forward exchange and interest rates at the end of the reporting period) and contract forward rates, discounted at a rate that reflects our credit risk and the credit risk of various counterparties. (3) Valuation technique: Discounted cash flow. Future cash flows primarily driven by assumptions concerning the amount and timing of estimated future cash flows and discount rates.

CASH AND CASH EQUIVALENTS (Tabl

CASH AND CASH EQUIVALENTS (Tables)	12 Months Ended
	Dec. 31, 2020
Cash and cash equivalents [abstract]
Disclosure of cash and cash equivalents	US$ MILLIONS 2020 2019 Cash $ 520 $ 467 Cash equivalents (1) 222 232 Restricted cash (2) 125 128 Total cash and cash equivalents $ 867 $ 827 (1) Short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.

FINANCIAL ASSETS (Tables)

FINANCIAL ASSETS (Tables)	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
Disclosure of financial assets	US$ MILLIONS 2020 2019 Current: Marketable securities $ 563 $ 142 Foreign currency forward contracts 34 112 Cross currency interest rate swaps 22 92 Loans and receivables 68 61 Other 11 25 Total current $ 698 $ 432 Non-current: Marketable securities $ 97 $ 71 Foreign currency forward contracts 81 29 Cross currency interest rate swaps 262 542 Loans and receivables 259 85 Other 10 36 Total non-current $ 709 $ 763

ACCOUNTS RECEIVABLE AND OTHER (

ACCOUNTS RECEIVABLE AND OTHER (Tables)	12 Months Ended
	Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]
Disclosure of accounts receivable and other	US$ MILLIONS 2020 2019 Current: Accounts receivable $ 1,463 $ 1,741 Prepayments & other assets 462 219 Total current $ 1,925 $ 1,960 Non-current: Finance lease receivables $ 343 $ — Accounts receivable 123 100 Restricted cash (1) 81 41 Tax recovery receivables 21 27 Other assets 188 89 Total non-current $ 756 $ 257 (1) Restricted cash primarily relates to our partnership’s financing arrangements, including debt service accounts. Cash that becomes unrestricted within one year of the reporting date is classified as cash and cash equivalents.
Disclosure of maturity analysis of finance lease payments receivable	The table below outlines Brookfield Infrastructure’s undiscounted lease payments to be received under operating and finance leases as at December 31, 2020: US$ MILLIONS Less than 1-2 years 2-3 years 3-4 years 4-5 years 5+ years Total lease payment receivable Finance lease receivable $ 62 $ 61 $ 61 $ 60 $ 59 $ 555 $ 858 Operating lease receivable 396 384 318 295 271 1,474 3,138 Total lease receivable $ 458 $ 445 $ 379 $ 355 $ 330 $ 2,029 $ 3,996
Disclosure of maturity analysis of operating lease payments	The table below outlines Brookfield Infrastructure’s undiscounted lease payments to be received under operating and finance leases as at December 31, 2020: US$ MILLIONS Less than 1-2 years 2-3 years 3-4 years 4-5 years 5+ years Total lease payment receivable Finance lease receivable $ 62 $ 61 $ 61 $ 60 $ 59 $ 555 $ 858 Operating lease receivable 396 384 318 295 271 1,474 3,138 Total lease receivable $ 458 $ 445 $ 379 $ 355 $ 330 $ 2,029 $ 3,996

INVENTORY (Tables)

INVENTORY (Tables)	12 Months Ended
	Dec. 31, 2020
Inventories [Abstract]
Disclosure of inventories	US$ MILLIONS 2020 2019 Natural gas inventory $ 71 $ 127 Raw materials and other 150 115 Carrying amount of inventories $ 221 $ 242

INVESTMENT IN ASSOCIATES AND _2

INVESTMENT IN ASSOCIATES AND JOINT VENTURES (Tables)	12 Months Ended
	Dec. 31, 2020
Interests In Other Entities [Abstract]
Disclosure of ownership interest, voting interest, and carrying value of joint ventures	The following table represents the change in the balance of investments in associates and joint ventures: US$ MILLIONS 2020 2019 Balance at beginning of year $ 4,967 $ 4,591 Share of earnings for the year 131 224 Foreign currency translation and other (245) (62) Share of other comprehensive income 7 54 Distributions (167) (254) Disposition of interest (1),(2) — (135) Held for sale (2) — (38) Change in basis of accounting (3) 466 — Acquisitions (4),(5),(6),(7) 369 587 Balance at end of year (8) $ 5,528 $ 4,967 (1) In June 2019, Brookfield Infrastructure sold its 40% interest in its European port operation to a third party for $135 million. (2) In July 2020, Brookfield Infrastructure sold its 11% interest in its Texas electricity transmission operation for total consideration, net of tax, of approximately $60 million. On disposition, Brookfield Infrastructure recognized a gain on sale of approximately $20 million. The investment was classified as held for sale effective December 31, 2019. (3) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian export terminal. Our 49% retained interest was remeasured using the initial public offering price of $466 million. Based on our ownership interest and governance rights retained, our partnership equity accounts for the entity. Refer to Note 5, Disposition of Businesses, for further details. (4) In March 2019, Brookfield Infrastructure, alongside its institutional partners, acquired an effective 12% interest in a Brazilian data center operation, Ascenty Participacoes S.A (“Ascenty”), for approximately $190 million. Brookfield maintains 50% of the voting rights of Ascenty in a joint venture with Digital Realty Trust Inc. Brookfield Infrastructure has joint control through its position in the business. Accordingly, our partnership equity accounts for the entity. Subsequent to the initial acquisition, Brookfield Infrastructure has made additional injections into the business to fund growth capital expenditures. (5) In July 2019, Brookfield Infrastructure, alongside its institutional partners, acquired an effective 12% interest in a New Zealand integrated data provider, Vodafone New Zealand (“VNZ”) for approximately $170 million. Brookfield maintains 50% of the voting rights of VNZ in a joint venture with Infratil Limited. Brookfield Infrastructure has joint control through its position in the business. Accordingly, our partnership equity accounts for the entity. (6) Brookfield Infrastructure acquired a 13% interest in Ramones II Norte (“Norte”) on October 7, 2019 and an 11% interest in Ramones II Sur (“Sur”) on October 21, 2019, collectively the regulated natural gas transmission business in Mexico (“Los Ramones”), for approximately $140 million . Brookfield maintains 50% of the voting rights in Norte and 45% of the voting rights in Sur. Brookfield Infrastructure has joint control of Los Ramones through its ownership interest and governance rights. (7) In September 2020, Brookfield Infrastructure, acquired an effective 6% interest in a U.S. LNG export terminal (“Sabine Pass”), Cheniere Energy Partners, L.P. for $369 million. Brookfield maintains a co-controlling interest in a joint venture with Blackstone Infrastructure Partners, which holds an approximate 41% interest in Sabine Pass. Based on our ownership interest and governance rights retained, our partnership equity accounts for the entity.
Disclosure of ownership interest, voting interest, and carrying value of associates	The following table represents the change in the balance of investments in associates and joint ventures: US$ MILLIONS 2020 2019 Balance at beginning of year $ 4,967 $ 4,591 Share of earnings for the year 131 224 Foreign currency translation and other (245) (62) Share of other comprehensive income 7 54 Distributions (167) (254) Disposition of interest (1),(2) — (135) Held for sale (2) — (38) Change in basis of accounting (3) 466 — Acquisitions (4),(5),(6),(7) 369 587 Balance at end of year (8) $ 5,528 $ 4,967 (1) In June 2019, Brookfield Infrastructure sold its 40% interest in its European port operation to a third party for $135 million. (2) In July 2020, Brookfield Infrastructure sold its 11% interest in its Texas electricity transmission operation for total consideration, net of tax, of approximately $60 million. On disposition, Brookfield Infrastructure recognized a gain on sale of approximately $20 million. The investment was classified as held for sale effective December 31, 2019. (3) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian export terminal. Our 49% retained interest was remeasured using the initial public offering price of $466 million. Based on our ownership interest and governance rights retained, our partnership equity accounts for the entity. Refer to Note 5, Disposition of Businesses, for further details. (4) In March 2019, Brookfield Infrastructure, alongside its institutional partners, acquired an effective 12% interest in a Brazilian data center operation, Ascenty Participacoes S.A (“Ascenty”), for approximately $190 million. Brookfield maintains 50% of the voting rights of Ascenty in a joint venture with Digital Realty Trust Inc. Brookfield Infrastructure has joint control through its position in the business. Accordingly, our partnership equity accounts for the entity. Subsequent to the initial acquisition, Brookfield Infrastructure has made additional injections into the business to fund growth capital expenditures. (5) In July 2019, Brookfield Infrastructure, alongside its institutional partners, acquired an effective 12% interest in a New Zealand integrated data provider, Vodafone New Zealand (“VNZ”) for approximately $170 million. Brookfield maintains 50% of the voting rights of VNZ in a joint venture with Infratil Limited. Brookfield Infrastructure has joint control through its position in the business. Accordingly, our partnership equity accounts for the entity. (6) Brookfield Infrastructure acquired a 13% interest in Ramones II Norte (“Norte”) on October 7, 2019 and an 11% interest in Ramones II Sur (“Sur”) on October 21, 2019, collectively the regulated natural gas transmission business in Mexico (“Los Ramones”), for approximately $140 million . Brookfield maintains 50% of the voting rights in Norte and 45% of the voting rights in Sur. Brookfield Infrastructure has joint control of Los Ramones through its ownership interest and governance rights. (7) In September 2020, Brookfield Infrastructure, acquired an effective 6% interest in a U.S. LNG export terminal (“Sabine Pass”), Cheniere Energy Partners, L.P. for $369 million. Brookfield maintains a co-controlling interest in a joint venture with Blackstone Infrastructure Partners, which holds an approximate 41% interest in Sabine Pass. Based on our ownership interest and governance rights retained, our partnership equity accounts for the entity.
Disclosure of interests in associates	The following tables present the gross assets and liabilities of Brookfield Infrastructure’s investments in associates and joint ventures: As at December 31, 2020 Total Attributable to US$ MILLIONS Ownership and Voting Interest Current Non- Total Current Non- Total Total Other Partnership’s Utilities 11-20% $ 646 $ 6,142 $ 6,788 $ 487 $ 4,238 $ 4,725 $ 2,063 $ 1,810 $ 253 Transport 6-50% 1,266 25,762 27,028 1,959 9,836 11,795 15,233 12,474 2,759 Midstream (1) 20-50% 173 6,392 6,565 249 4,033 4,282 2,283 911 1,372 Data 12-21% 841 13,308 14,149 1,263 6,081 7,344 6,805 5,672 1,133 Corporate 25-50% 22 121 143 14 56 70 73 62 11 Total $ 2,948 $ 51,725 $ 54,673 $ 3,972 $ 24,244 $ 28,216 $ 26,457 $ 20,929 $ 5,528 (1) The partnership’s share of total net assets include a shareholder loan of $500 million receivable from our U.S. gas pipeline. As at December 31, 2019 Total Attributable to US$ MILLIONS Ownership and Voting Interest Current Non- Total Current Non- Total Total Other Partnership’s Utilities 11-20% $ 870 $ 6,499 $ 7,369 $ 686 $ 4,152 $ 4,838 $ 2,531 $ 2,286 $ 245 Transport 11-50% 1,233 18,327 19,560 1,948 8,444 10,392 9,168 6,770 2,398 Midstream (1) 20-50% 166 5,696 5,862 275 4,013 4,288 1,574 307 1,267 Data 12-21% 912 11,636 12,548 1,042 4,908 5,950 6,598 5,569 1,029 Corporate 25-50% 8 133 141 13 56 69 72 44 28 Total $ 3,189 $ 42,291 $ 45,480 $ 3,964 $ 21,573 $ 25,537 $ 19,943 $ 14,976 $ 4,967 (1) The partnership’s share of total net assets include a shareholder loan of $500 million receivable from our U.S. gas pipeline. The following tables present the gross amounts of revenue, net income, other comprehensive income from Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2020, 2019, and 2018: Year ended December 31, 2020 Total Net Income Attributable to the Partnership US$ MILLIONS Revenue Net OCI Total Utilities $ 1,715 $ 364 $ (205) $ 159 $ 50 Transport 4,161 171 (1,419) (1,248) (101) Midstream 767 236 — 236 136 Data 2,245 293 374 667 45 Corporate 9 (15) (245) (260) 1 Total $ 8,897 $ 1,049 $ (1,495) $ (446) $ 131 Year ended December 31, 2019 Total Net Income Attributable to the Partnership US$ MILLIONS Revenue Net OCI Total Utilities $ 1,046 $ 354 $ 26 $ 380 $ 57 Transport 3,351 22 364 386 2 Midstream 734 351 (54) 297 184 Data 1,447 (38) 57 19 (9) Corporate 17 (38) (156) (194) (10) Total $ 6,595 $ 651 $ 237 $ 888 $ 224 Year ended December 31, 2018 Total Net Income Attributable to the Partnership US$ MILLIONS Revenue Net OCI Total Utilities $ 541 $ 92 $ 110 $ 202 $ 56 Transport 3,747 (74) (856) (930) (333) Midstream 739 91 8 99 46 Data 804 64 244 308 74 Corporate 41 (132) 356 224 55 Total $ 5,872 $ 41 $ (138) $ (97) $ (102) The following tables present the cash flow activities of Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2020, 2019, and 2018: Year ended December 31, 2020 Total Attributable to US$ MILLIONS Operating Investing Financing Total Cash Flows Other Partnership’s Utilities $ 184 $ (697) $ 285 $ (228) $ (199) $ (29) Transport 1,189 (1,039) 826 976 843 133 Midstream 378 (314) (56) 8 3 5 Data 852 (735) (77) 40 34 6 Corporate — — — — — — Total $ 2,603 $ (2,785) $ 978 $ 796 $ 681 $ 115 Year ended December 31, 2019 Total Attributable to US$ MILLIONS Operating Investing Financing Total Cash Flows Other Partnership’s Utilities $ 108 $ (1,109) $ 1,548 $ 547 $ 471 $ 76 Transport 692 (852) 11 (149) (76) (73) Midstream 357 (267) (95) (5) (3) (2) Data 531 (2,707) 2,201 25 30 (5) Corporate — — — — — — Total $ 1,688 $ (4,935) $ 3,665 $ 418 $ 422 $ (4) Year ended December 31, 2018 Total Attributable to US$ MILLIONS Operating Investing Financing Total Cash Flows Other Partnership’s Utilities $ 380 $ 6,189 $ (6,716) $ (147) $ (106) $ (41) Transport 776 (1,018) 369 127 77 50 Midstream 320 (288) (46) (14) (10) (4) Data 323 (305) 19 37 29 8 Corporate 7 (7) — — — — Total $ 1,806 $ 4,571 $ (6,374) $ 3 $ (10) $ 13
Disclosure of interests in joint ventures	The following tables present the gross assets and liabilities of Brookfield Infrastructure’s investments in associates and joint ventures: As at December 31, 2020 Total Attributable to US$ MILLIONS Ownership and Voting Interest Current Non- Total Current Non- Total Total Other Partnership’s Utilities 11-20% $ 646 $ 6,142 $ 6,788 $ 487 $ 4,238 $ 4,725 $ 2,063 $ 1,810 $ 253 Transport 6-50% 1,266 25,762 27,028 1,959 9,836 11,795 15,233 12,474 2,759 Midstream (1) 20-50% 173 6,392 6,565 249 4,033 4,282 2,283 911 1,372 Data 12-21% 841 13,308 14,149 1,263 6,081 7,344 6,805 5,672 1,133 Corporate 25-50% 22 121 143 14 56 70 73 62 11 Total $ 2,948 $ 51,725 $ 54,673 $ 3,972 $ 24,244 $ 28,216 $ 26,457 $ 20,929 $ 5,528 (1) The partnership’s share of total net assets include a shareholder loan of $500 million receivable from our U.S. gas pipeline. As at December 31, 2019 Total Attributable to US$ MILLIONS Ownership and Voting Interest Current Non- Total Current Non- Total Total Other Partnership’s Utilities 11-20% $ 870 $ 6,499 $ 7,369 $ 686 $ 4,152 $ 4,838 $ 2,531 $ 2,286 $ 245 Transport 11-50% 1,233 18,327 19,560 1,948 8,444 10,392 9,168 6,770 2,398 Midstream (1) 20-50% 166 5,696 5,862 275 4,013 4,288 1,574 307 1,267 Data 12-21% 912 11,636 12,548 1,042 4,908 5,950 6,598 5,569 1,029 Corporate 25-50% 8 133 141 13 56 69 72 44 28 Total $ 3,189 $ 42,291 $ 45,480 $ 3,964 $ 21,573 $ 25,537 $ 19,943 $ 14,976 $ 4,967 (1) The partnership’s share of total net assets include a shareholder loan of $500 million receivable from our U.S. gas pipeline. The following tables present the gross amounts of revenue, net income, other comprehensive income from Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2020, 2019, and 2018: Year ended December 31, 2020 Total Net Income Attributable to the Partnership US$ MILLIONS Revenue Net OCI Total Utilities $ 1,715 $ 364 $ (205) $ 159 $ 50 Transport 4,161 171 (1,419) (1,248) (101) Midstream 767 236 — 236 136 Data 2,245 293 374 667 45 Corporate 9 (15) (245) (260) 1 Total $ 8,897 $ 1,049 $ (1,495) $ (446) $ 131 Year ended December 31, 2019 Total Net Income Attributable to the Partnership US$ MILLIONS Revenue Net OCI Total Utilities $ 1,046 $ 354 $ 26 $ 380 $ 57 Transport 3,351 22 364 386 2 Midstream 734 351 (54) 297 184 Data 1,447 (38) 57 19 (9) Corporate 17 (38) (156) (194) (10) Total $ 6,595 $ 651 $ 237 $ 888 $ 224 Year ended December 31, 2018 Total Net Income Attributable to the Partnership US$ MILLIONS Revenue Net OCI Total Utilities $ 541 $ 92 $ 110 $ 202 $ 56 Transport 3,747 (74) (856) (930) (333) Midstream 739 91 8 99 46 Data 804 64 244 308 74 Corporate 41 (132) 356 224 55 Total $ 5,872 $ 41 $ (138) $ (97) $ (102) The following tables present the cash flow activities of Brookfield Infrastructure’s investments in associates and joint ventures for the years ended December 31, 2020, 2019, and 2018: Year ended December 31, 2020 Total Attributable to US$ MILLIONS Operating Investing Financing Total Cash Flows Other Partnership’s Utilities $ 184 $ (697) $ 285 $ (228) $ (199) $ (29) Transport 1,189 (1,039) 826 976 843 133 Midstream 378 (314) (56) 8 3 5 Data 852 (735) (77) 40 34 6 Corporate — — — — — — Total $ 2,603 $ (2,785) $ 978 $ 796 $ 681 $ 115 Year ended December 31, 2019 Total Attributable to US$ MILLIONS Operating Investing Financing Total Cash Flows Other Partnership’s Utilities $ 108 $ (1,109) $ 1,548 $ 547 $ 471 $ 76 Transport 692 (852) 11 (149) (76) (73) Midstream 357 (267) (95) (5) (3) (2) Data 531 (2,707) 2,201 25 30 (5) Corporate — — — — — — Total $ 1,688 $ (4,935) $ 3,665 $ 418 $ 422 $ (4) Year ended December 31, 2018 Total Attributable to US$ MILLIONS Operating Investing Financing Total Cash Flows Other Partnership’s Utilities $ 380 $ 6,189 $ (6,716) $ (147) $ (106) $ (41) Transport 776 (1,018) 369 127 77 50 Midstream 320 (288) (46) (14) (10) (4) Data 323 (305) 19 37 29 8 Corporate 7 (7) — — — — Total $ 1,806 $ 4,571 $ (6,374) $ 3 $ (10) $ 13

PROPERTY, PLANT AND EQUIPMENT (

PROPERTY, PLANT AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2020
Property, plant and equipment [abstract]
Disclosure of detailed information about property, plant and equipment	US$ MILLIONS Utilities Transport Midstream Data Total Gross Carrying Amount: Balance at January 1, 2019 $ 6,248 $ 2,495 $ 2,443 $ 444 $ 11,630 Change in accounting policies (1) 110 356 108 633 1,207 Additions, net of disposals 770 122 116 8 1,016 Non-cash (disposals) additions (295) 49 23 (51) (274) Acquisitions through business combinations (2) 2,135 5,283 1,197 95 8,710 Assets reclassified as held for sale (455) — (3) — (458) Net foreign currency exchange differences 120 4 87 2 213 Balance at December 31, 2019 $ 8,633 $ 8,309 $ 3,971 $ 1,131 $ 22,044 Additions, net of disposals 535 387 306 77 1,305 Non-cash (disposals) additions 15 (241) (29) (26) (281) Acquisitions through business combinations (2) — — — 7,334 7,334 Net foreign currency exchange differences 106 242 73 77 498 Balance at December 31, 2020 $ 9,289 $ 8,697 $ 4,321 $ 8,593 $ 30,900 Accumulated depreciation: Balance at January 1, 2019 $ (985) $ (744) $ (120) $ — $ (1,849) Depreciation expense (415) (178) (84) (87) (764) Disposals 3 2 — — 5 Assets reclassified as held for sale 194 — — — 194 Non-cash disposals (additions) 50 (27) 3 — 26 Net foreign currency exchange differences (18) (3) (7) (1) (29) Balance at December 31, 2019 $ (1,171) $ (950) $ (208) $ (88) $ (2,417) Depreciation expense (419) (498) (141) (189) (1,247) Disposals 12 4 — — 16 Non-cash disposals — 130 — 17 147 Net foreign currency exchange differences (35) (90) (7) (3) (135) Balance at December 31, 2020 $ (1,613) $ (1,404) $ (356) $ (263) $ (3,636) Accumulated fair value adjustments: Balance at January 1, 2019 $ 2,002 $ 810 $ 221 $ — $ 3,033 Assets reclassified as held for sale (416) — — — (416) Fair value adjustments 582 45 92 — 719 Net foreign currency exchange differences 44 2 16 — 62 Non-cash disposals — — (12) — (12) Balance at December 31, 2019 $ 2,212 $ 857 $ 317 $ — $ 3,386 Fair value adjustments 652 113 21 — 786 Net foreign currency exchange differences 70 78 — — 148 Balance at December 31, 2020 $ 2,934 $ 1,048 $ 338 $ — $ 4,320 Net book value: December 31, 2020 (3) $ 10,610 $ 8,341 $ 4,303 $ 8,330 $ 31,584 December 31, 2019 $ 9,674 $ 8,216 $ 4,080 $ 1,043 $ 23,013 1. Relates to the adoption of IFRS 16 effective January 1, 2019. 2. See Note 6, Acquisition of Businesses, for additional information. 3. Includes right-of-use assets of $159 million (2019: $156 million) in our utilities segment, $1,187 million (2019: $1,329 million) in our transport segment, $113 million (2019: $116 million) in our midstream segment and $2,643 million (2019: $560 million) in our data segment. The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s property, plant and equipment assets valued using the income method, categorized by segment. Dec. 31, 2020 Dec. 31, 2019 Segment Primary Valuation Technique (1) Discount Rate Terminal Value Multiple Investment Horizon Primary Valuation Technique (1) Discount Rate Terminal Value Multiple Investment Horizon Utilities Discounted cash flow model 7% to 14% 7x to 23x 10 yrs Discounted cash flow model 7% to 14% 8x to 21x 10 to 20 yrs Transport Discounted cash flow model 7% to 13% 9x to 14x 10 yrs Discounted cash flow model 7% to 13% 9x to 14x 10 to 20 yrs Midstream Discounted cash flow model 15% 10x 5 to 10 yrs Discounted cash flow model 15% 10x 5 to 10 yrs The following table summarizes the carrying amount of property, plant and equipment that would have been recognized had assets been carried under the cost model. US$ MILLIONS Dec. 31, 2020 Dec. 31, 2019 Utilities $ 8,114 $ 7,776 Transport 7,548 7,574 Midstream 4,007 3,797 Data 8,330 1,043

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2020
Intangible Assets [Abstract]
Disclosure of reconciliation of changes in intangible assets and goodwill	US$ MILLIONS 2020 2019 Cost $ 13,233 $ 15,695 Accumulated amortization (1,466) (1,309) Net intangible assets $ 11,767 $ 14,386 The following table presents the change in the cost balance of intangible assets: US$ MILLIONS 2020 2019 Cost at beginning of the year $ 15,695 $ 12,515 Additions, net of disposals 102 109 Acquisitions through business combinations (1) 532 3,248 Held for sale — (1) Non-cash (disposals) additions (2) (2,118) 15 Foreign currency translation (978) (191) Cost at end of year $ 13,233 $ 15,695 (1) See Note 6, Acquisition of Businesses, for additional information. (2) Non-cash disposals primarily relate to the partial disposition of our Australian export terminal. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details. The following table presents the accumulated amortization for Brookfield Infrastructure’s intangible assets: US$ MILLIONS 2020 2019 Accumulated amortization at beginning of year $ (1,309) $ (880) Non-cash disposals (1) 216 — Disposals — 12 Amortization (458) (450) Foreign currency translation 85 9 Accumulated amortization at end of year $ (1,466) $ (1,309) (1) Non-cash disposals primarily relate to the partial disposition of our Australian export terminal. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details.
Disclosure of detailed information about intangible assets	Intangible assets are allocated to the following cash generating units: US$ MILLIONS 2020 2019 Brazilian regulated transmission operation $ 2,903 $ 3,885 North American rail operations 1,929 1,992 North American residential energy infrastructure operation 1,748 1,806 Peruvian toll roads 1,073 1,159 Chilean toll roads 825 814 Indian toll roads (1) 714 769 Indian telecom tower operation (2) 537 — U.K. telecom towers operation 491 472 U.K. port operation 292 283 Brazilian electricity transmission operation 270 401 Other (3) 985 1,047 Australian export terminal (4) — 1,758 Total $ 11,767 $ 14,386 (1) Indian toll roads include $641 million of intangible assets at our investments in Simhapuri Expressway Limited and Rayalseema Expressway Limited and $73 million at BIF India Holdings Pte Ltd. (2) Refer to Note 6, Acquisition of Businesses, for further details. (3) Other intangibles are comprised of customer contracts at our Australian port operation, Western Canadian natural gas gathering and processing operation, U.S. data center operation, Colombian natural gas transmission operation, natural gas operation in India and contracted order book at our U.K. regulated distribution operation. (4) Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details. Goodwill is allocated to the following cash generating units or group of cash generating units: US$ MILLIONS 2020 2019 North American rail operations (1) $ 2,126 $ 2,042 North American residential energy infrastructure operation 1,296 1,274 Western Canadian natural gas gathering and processing operation (1) 756 749 Colombian natural gas distribution operation 520 542 Brazilian regulated transmission operation 490 632 U.S. data center operation (1) 487 486 Other 959 828 Total $ 6,634 $ 6,553 (1) See Note 6, Acquisition of Businesses, for additional information.

GOODWILL (Tables)

GOODWILL (Tables)	12 Months Ended
	Dec. 31, 2020
Intangible Assets [Abstract]
Disclosure of reconciliation of changes in intangible assets and goodwill	The following table presents the carrying amount for Brookfield Infrastructure’s goodwill: US$ MILLIONS 2020 2019 Balance at beginning of the year $ 6,553 $ 3,859 Acquisitions through business combinations (1) 27 2,644 Foreign currency translation and other 54 50 Balance at end of the year $ 6,634 $ 6,553 (1) See Note 6, Acquisition of Businesses, for additional information.
Disclosure of detailed information about intangible assets	Intangible assets are allocated to the following cash generating units: US$ MILLIONS 2020 2019 Brazilian regulated transmission operation $ 2,903 $ 3,885 North American rail operations 1,929 1,992 North American residential energy infrastructure operation 1,748 1,806 Peruvian toll roads 1,073 1,159 Chilean toll roads 825 814 Indian toll roads (1) 714 769 Indian telecom tower operation (2) 537 — U.K. telecom towers operation 491 472 U.K. port operation 292 283 Brazilian electricity transmission operation 270 401 Other (3) 985 1,047 Australian export terminal (4) — 1,758 Total $ 11,767 $ 14,386 (1) Indian toll roads include $641 million of intangible assets at our investments in Simhapuri Expressway Limited and Rayalseema Expressway Limited and $73 million at BIF India Holdings Pte Ltd. (2) Refer to Note 6, Acquisition of Businesses, for further details. (3) Other intangibles are comprised of customer contracts at our Australian port operation, Western Canadian natural gas gathering and processing operation, U.S. data center operation, Colombian natural gas transmission operation, natural gas operation in India and contracted order book at our U.K. regulated distribution operation. (4) Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details. Goodwill is allocated to the following cash generating units or group of cash generating units: US$ MILLIONS 2020 2019 North American rail operations (1) $ 2,126 $ 2,042 North American residential energy infrastructure operation 1,296 1,274 Western Canadian natural gas gathering and processing operation (1) 756 749 Colombian natural gas distribution operation 520 542 Brazilian regulated transmission operation 490 632 U.S. data center operation (1) 487 486 Other 959 828 Total $ 6,634 $ 6,553 (1) See Note 6, Acquisition of Businesses, for additional information.

INVESTMENT PROPERTIES (Tables)

INVESTMENT PROPERTIES (Tables)	12 Months Ended
	Dec. 31, 2020
Investment property [abstract]
Disclosure of detailed information about investment property	The following table presents the carrying amount for Brookfield Infrastructure’s investment properties: US$ MILLIONS 2020 2019 Balance at beginning of the year $ 416 $ 190 Acquisitions through business combinations (1) — 211 Additions, net of disposals 3 2 Non-cash additions — 5 Fair value adjustments 68 — Foreign currency translation 31 8 Balance at end of the year $ 518 $ 416 (1) See Note 6, Acquisition of Businesses, for additional information. Segment Valuation technique Significant unobservable inputs Range of inputs Transport Direct Income Capitalization Capitalization Rate 6% to 14% Data Direct Income Capitalization Capitalization Rate 6% to 8%

ACCOUNTS PAYABLE AND OTHER (Tab

ACCOUNTS PAYABLE AND OTHER (Tables)	12 Months Ended
	Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]
Disclosure of accounts payable and other	US$ MILLIONS Note 2020 2019 Current: Accounts payable $ 1,461 $ 973 Accrued liabilities 751 653 Deferred revenue (i) 256 307 Lease liabilities 206 197 Provisions (1) 176 214 Loans and notes payable 134 — Other liabilities 293 66 Total current $ 3,277 $ 2,410 Non-current: Lease liabilities $ 3,597 $ 1,606 Deferred revenue (i) 467 246 Provisions (1) 423 327 Pension liabilities (2) 315 148 Loans and notes payable 84 99 Other liabilities 311 144 Total non-current $ 5,197 $ 2,570 (1) Provisions primarily relate to decommissioning and site restoration liabilities at our Western Canadian natural gas gathering and processing operation and our Indian telecom tower operation. (2) See Note 31, Retirement Benefit Plans, for further details.

FINANCIAL LIABILITIES (Tables)

FINANCIAL LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
Disclosure of financial liabilities	US$ MILLIONS 2020 2019 Current: Deferred consideration $ 136 $ 131 Interest rate swaps 116 — Foreign currency forward contracts 107 61 Other financial liabilities 337 137 Total current financial liabilities $ 696 $ 329 Non-current: Deferred consideration (1) $ 1,022 $ 1,115 Interest rate swaps 341 113 Foreign currency forward contracts 138 36 Inflation swaps 46 71 Other financial liabilities 1,131 509 Total non-current financial liabilities $ 2,678 $ 1,844 (1) Deferred consideration primarily relates to the April 4, 2017 acquisition our Brazilian regulated gas transmission operation. The deferred consideration is denominated in U.S. dollars and accrues interest at 3.35% compounded annually. The financial liability is measured at amortized cost and is payable on the fifth anniversary of the date of acquisition.

BORROWINGS (Tables)

BORROWINGS (Tables)	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
Disclosure of detailed information about borrowings	Maturity Annual Rate Currency 2020 2019 Corporate revolving credit facility June 28, 2024 LIBOR plus 1.2% US$ $ 1,131 $ 820 Corporate revolving credit facility April 14, 2022 LIBOR plus 1.2% US$ — — Medium Term Notes (1) : Non-Current: Public - Canadian March 11, 2022 3.5% C$ — 346 Public - Canadian February 22, 2024 3.3% C$ 236 231 Public - Canadian February 22, 2024 3.3% C$ 314 308 Public - Canadian September 11, 2028 4.2% C$ 550 384 Public - Canadian October 9, 2029 3.4% C$ 550 386 Public - Canadian September 1, 2032 2.9% C$ 392 — 3,173 2,475 Deferred financing costs and other (15) — Total $ 3,158 $ 2,475 (1) See Note 20, Subsidiary Public Issuers, for further details. The current and non-current balances of non-recourse borrowings are as follows: US$ MILLIONS 2020 2019 Current $ 1,551 $ 1,381 Non-current 18,469 17,163 Total $ 20,020 $ 18,544 Principal repayments on non-recourse borrowings due over the next five years and thereafter are as follows: US$ MILLIONS Utilities Transport Midstream Data Total 2021 $ 486 $ 431 $ 10 $ 125 $ 1,052 2022 351 454 11 65 881 2023 1,676 330 510 251 2,767 2024 1,370 391 10 244 2,015 2025 783 928 1,088 755 3,554 Thereafter 3,434 4,146 524 1,804 9,908 Total principal repayments (1) 8,100 6,680 2,153 3,244 20,177 Deferred financing costs and other (33) (45) (42) (37) (157) Total - Dec. 31, 2020 $ 8,067 $ 6,635 $ 2,111 $ 3,207 $ 20,020 Total - Dec. 31, 2019 $ 7,213 $ 8,210 $ 2,198 $ 923 $ 18,544 (1) As of December 31, 2020, approximately $540 million of debt was in breach of asset-level financial covenants. We anticipate being able to refinance or obtain waivers from our financial institutions and accordingly presented the debt in the contractually obligated year of maturity. The weighted average interest rates of non-recourse borrowings are as follows: US$ MILLIONS Utilities Transport Midstream Data Total Dec. 31, 2020 4 % 5 % 6 % 6 % 5 % Dec. 31, 2019 5 % 5 % 6 % 6 % 5 % Principal repayments on non-recourse borrowings in their local currency are as follows: US$ MILLIONS, except as noted Dec. 31, 2020 Local Currency Dec. 31, 2019 Local Currency U.S. dollars $ 7,457 USD 7,457 $ 7,801 USD $ 7,801 Indian rupees 3,760 INR 274,457 1,427 INR 101,929 British pounds 2,941 GBP 2,151 2,411 GBP 1,819 Canadian dollars 2,400 CAD 3,056 2,473 CAD 3,212 Chilean Unidad de Fomento (1) 1,201 UF 29 1,099 UF 29 Brazilian real 1,161 BRL 6,035 1,489 BRL 6,002 Colombian pesos 418 COP 1,430,115 342 COP 1,124,325 Peruvian soles 417 PEN 1,511 452 PEN 1,497 Australian dollars 320 AUD 416 1,010 AUD 1,439 Euro 59 EUR 48 — EUR — New Zealand dollars 43 NZD 60 40 NZD 59 (1) Chilean Unidad de Fomento is an inflation adjusted unit of account indexed to the Chilean Peso.
Disclosure of reconciliation of liabilities arising from financing activities	Details of the “Changes in liabilities from financing activities”, including both changes arising from cash flows and non-cash changes are as follows: US$ MILLIONS 2019 Cash Flows Acquisitions/ Dispositions (1) Foreign Exchange Movement and Other 2020 Corporate borrowings $ 2,475 $ 629 $ — $ 54 $ 3,158 Non-recourse borrowings 18,544 1,119 689 (332) 20,020 (1) Refer to Note 6, Acquisition of Businesses, and Note 5, Disposition of Businesses, for further details.

SUBSIDIARY PUBLIC ISSUERS (Tabl

SUBSIDIARY PUBLIC ISSUERS (Tables)	12 Months Ended
	Dec. 31, 2020
Subsidiary Public Issuer [Abstract]
Condensed Financial Information	The following tables set forth consolidated summary financial information for our partnership, the Fincos, BIPIC and BIPC Holdings: For the year ended December 31, 2020 Our partnership (2) The Fincos BIPIC BIPC Holdings Subsidiaries of our partnership other than the Fincos, BIPIC, and BIPC Holdings (3) Consolidating adjustments (4) Our partnership Revenues $ — $ — $ — $ — $ — $ 8,885 $ 8,885 Net income attributable to partnership (1) 141 — — 5 389 (141) 394 For the year ended December 31, 2019 Revenues $ — $ — $ — $ — $ — $ 6,597 $ 6,597 Net income attributable to partnership (1) 52 — — — 233 (52) 233 For the year ended December 31, 2018 Revenues $ — $ — $ — $ — $ — $ 4,652 $ 4,652 Net income attributable to partnership (1) 192 — — — 410 (192) 410 As at December 31, 2020 Current assets $ — $ — $ — $ — $ — $ 3,711 $ 3,711 Non-current assets 5,363 — 944 2,238 7,232 41,843 57,620 Current liabilities — — 77 — — 5,447 5,524 Non-current liabilities — 2,027 — 591 — 31,516 34,134 Non-controlling interests Redeemable Partnership Units held by Brookfield — — — — — 1,687 1,687 BIPC exchangeable shares — — — — — 638 638 Exchange LP Units — — — — — 12 12 In operating subsidiaries — — — — — 13,954 13,954 Preferred unitholders — — — — — 1,130 1,130 As at December 31, 2019 Current assets $ — $ — $ — $ — $ — $ 5,841 $ 5,841 Non-current assets 5,983 — 889 — 8,905 34,690 50,467 Current liabilities — — 75 — — 5,364 5,439 Non-current liabilities — 1,655 — — — 27,037 28,692 Non-controlling interests Redeemable Partnership Units held by Brookfield — — — — — 2,039 2,039 Exchange LP Units — — — — — 18 18 In operating subsidiaries — — — — — 14,113 14,113 Preferred unitholders — — — — — 935 935 (1) Includes net income attributable to non-controlling interest – Redeemable Partnership Units held by Brookfield, Exchange LP units, BIPC exchangeable shares, general partner and limited partners. (2) Includes investments in all subsidiaries of our partnership under the equity method. (3) Includes investments in all other subsidiaries of the Holding LP, Brookfield Infrastructure Holdings (Canada) Inc., Brookfield Infrastructure US Holdings I Corporation and BIP Bermuda Holdings I Limited under the equity method. (4) Includes elimination of intercompany transactions and balances necessary to present our partnership on a consolidated basis.

INTEREST EXPENSE (Tables)

INTEREST EXPENSE (Tables)	12 Months Ended
	Dec. 31, 2020
Analysis of income and expense [abstract]
Disclosure of interest expense	US$ MILLIONS 2020 2019 2018 Interest on corporate facility $ 19 $ 20 $ 4 Interest on corporate debt 76 63 56 Interest on non-recourse borrowings 944 738 483 Other financing fees (1) 140 83 12 $ 1,179 $ 904 $ 555

NON-WHOLLY OWNED SUBSIDIARIES (

NON-WHOLLY OWNED SUBSIDIARIES (Tables)	12 Months Ended
	Dec. 31, 2020
Interests In Other Entities [Abstract]
Summarized accounts for non-wholly owned subsidiaries	The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Financial Position: As of December 31, 2020 US$ MILLIONS Current Non-Current Current Non-Current Non-Controlling Interest in Operating Subsidiaries Partnership Capital (1) Utilities U.K. regulated distribution operation $ 181 $ 5,264 $ 333 $ 3,241 $ 367 $ 1,504 Brazilian regulated gas transmission operation 405 3,494 203 2,772 783 141 Colombian natural gas distribution operation 220 1,256 248 478 636 114 Brazilian electricity transmission operation 15 320 11 196 89 39 Canadian district energy operation 28 1,260 147 567 429 145 U.S. district energy operation 38 1,097 78 768 163 126 North American residential energy infrastructure operation 210 4,215 436 2,321 1,174 494 Indian gas transmission operation 94 2,172 131 1,308 781 46 Transport North American rail operation 504 9,569 699 4,898 4,032 444 U.K. port operation 62 1,105 45 735 157 230 Australian port operation 151 863 131 393 352 138 Chilean toll roads 126 835 125 1,148 (335) 23 Peruvian toll roads 105 1,247 438 212 591 111 Indian toll roads (2) 87 808 177 426 203 89 Midstream North American gas storage operation 170 1,433 67 658 544 334 Western Canadian natural gas gathering and processing operation 125 3,964 131 2,072 1,348 538 Data U.S. data center operation 67 1,634 95 1,138 334 134 Australian data center operation 12 311 127 7 135 54 U.K. telecom towers operation 32 896 332 327 203 66 Indian telecom towers operation 392 7,998 493 5,392 1,917 588 Corporate Holding LP and other 589 172 870 3,423 52 (3,584) Total $ 3,613 $ 49,913 $ 5,317 $ 32,480 $ 13,955 $ 1,774 As of December 31, 2019 US$ MILLIONS Current Non-Current Current Non-Current Non-Controlling Partnership Capital (1) Utilities U.K. regulated distribution operation $ 159 $ 4,653 $ 294 $ 2,888 $ 318 $ 1,312 Colombian regulated distribution operation 759 — 427 — 274 58 Brazilian regulated transmission operation 435 4,606 199 3,195 1,305 342 Colombian natural gas distribution operation 214 1,166 299 314 684 83 Brazilian electricity transmission operation 21 401 12 252 110 48 Canadian district energy operation 29 974 47 506 337 113 U.S. district energy operation 37 964 41 747 118 95 North American residential energy infrastructure operation 171 3,997 337 1,925 1,341 565 Indian gas transmission operation 155 2,272 181 910 1,157 179 Transport Australian export terminal (3) 139 1,994 347 1,688 34 64 North American rail operation 2,150 9,392 1,409 4,889 4,747 497 U.K. port operation 47 934 78 370 218 315 Australian port operation 126 927 124 488 317 124 Chilean toll roads 95 821 67 1,112 (320) 57 Peruvian toll roads 122 1,337 19 683 638 119 Indian toll roads 75 868 83 570 203 87 Midstream North American gas storage 200 1,449 112 661 543 333 Western Canadian natural gas gathering and processing operation 119 3,721 147 1,845 1,320 528 Data U.S. data center operation 105 1,665 112 1,130 376 152 Australian data center operation 10 280 5 112 124 49 U.K. telecom towers operation 26 874 190 419 219 72 Corporate Holding LP and other 529 111 735 2,480 50 (2,625) Total $ 5,723 $ 43,406 $ 5,265 $ 27,184 $ 14,113 $ 2,567 (1) Attributable to non-controlling interest—Redeemable Partnership Units held by Brookfield, non-controlling interest—BIPC exchangeable shares, non-controlling interest—Exchange LP Units, general partner and limited partners. (2) Indian toll roads include our investments in BIF India Holdings Pte Ltd, Simhapuri Expressway Limited and Rayalseema Expressway Private Limited. (3) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian export terminal. Upon partial disposition, the operation ceased to meet the definition of a non-wholly owned subsidiary. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details. The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Operating Results: Year ended December 31, 2020 Attributable to non-controlling interest Attributable to US$ MILLIONS Revenue Net Other Net Other Utilities U.K. regulated distribution operation $ 488 $ 11 $ 42 $ 46 $ 167 Colombian regulated distribution operation (1) 6 2 156 — (6) Brazilian regulated transmission operation 942 309 (399) 116 (152) Colombian natural gas distribution operation 793 39 34 7 13 Brazilian electricity transmission operation 40 9 (25) 4 (11) Canadian district energy operation 127 5 115 2 39 U.S. district energy operation 137 (14) 58 (9) 38 North American residential energy infrastructure operation 1,274 70 (32) 29 (14) Indian gas transmission operation 268 (61) (23) (19) (7) Transport Australian export terminal (3) 297 163 35 54 16 North American rail operation 1,974 86 (153) 11 (16) U.K. port operation 235 22 16 31 22 Australian port operation 381 (29) 40 (10) 14 Chilean toll roads 116 (21) (21) (6) 2 Peruvian toll roads 81 7 (54) 1 (11) Indian toll roads (2) 111 (24) (4) (8) (2) Midstream (3) North American gas storage operation 143 (10) 10 (7) 6 Western Canadian natural gas gathering and processing operation 501 29 (1) 12 (1) Data U.S. data center operation 273 (32) (10) (13) (4) Australian data center operation 24 4 12 1 5 U.K. telecom towers operation 51 (3) 5 (1) 2 Indian telecom towers operation 360 5 69 3 14 Corporate Holding LP and other 9 (56) — (7) 250 Total $ 8,631 $ 511 $ (130) $ 237 $ 364 Year ended December 31, 2019 Attributable to non-controlling interest Attributable to US$ MILLIONS Revenue Net Other Net Other Utilities U.K. regulated distribution operation $ 478 $ 24 $ 71 $ 103 $ 278 Colombian regulated distribution operation (1) 179 10 (9) 2 (2) Brazilian regulated transmission operation 1,141 349 (83) 132 (33) Colombian natural gas distribution operation 874 51 (4) 7 — Brazilian transmission operation 2 15 (2) 7 (1) Canadian district energy operation 121 6 85 2 29 U.S. district energy operation 158 (14) 49 (9) 32 North American residential energy infrastructure operation 956 3 63 2 26 Indian gas transmission operation 266 (39) (33) (12) (10) Transport Australian export terminal (3) 308 15 (3) 43 (8) North American Rail Operation — — (10) — (1) U.K. port operation 197 4 19 7 27 Australian port operation 462 (24) (1) (7) — Chilean toll roads 162 — 27 2 16 Peruvian toll roads 107 5 10 1 2 Indian toll roads (2) 130 (19) (6) (9) (3) Midstream North American gas storage operation 143 12 52 9 32 Western Canadian natural gas gathering and processing operation 256 35 31 14 12 Data U.S. data center operation 294 (22) (10) (7) (4) Australian data center operation 20 6 (3) 2 (1) U.K. telecom towers operation — — (2) — (1) Corporate Holding LP and other 25 (5) — (295) (26) Total $ 6,279 $ 412 $ 241 $ (6) $ 364 Year ended December 31, 2018 Attributable to non-controlling interest Attributable to US$ MILLIONS Revenue Net Other Net Other Utilities U.K. regulated distribution operation $ 449 $ 22 $ 19 $ 99 $ 86 Colombian regulated distribution operation (1) 177 15 (11) 3 (2) Brazilian regulated transmission operation 1,112 357 (469) 139 (190) Colombian natural gas distribution operation 516 34 (91) 7 (14) Canadian district energy operation 118 7 32 3 11 U.S. district energy operation 149 (13) 35 (8) 23 North American residential energy infrastructure business 191 4 (73) 1 (30) Transport Australian export terminal (3) 307 14 (6) 34 (16) U.K. port operation 205 12 3 19 4 Australian port operation 522 (6) (33) (3) (11) Chilean toll roads 168 (1) (7) (1) (7) Peruvian toll roads 92 3 (25) 1 (5) Indian toll roads (2) 61 (12) 2 (6) (1) Midstream North American gas storage operation 150 (16) 22 (12) 15 Western Canadian natural gas gathering and processing business 61 3 (53) 1 (21) Data U.S. data center operation — — (1) — — Corporate Holding LP and other 23 (26) (1) 108 44 Total $ 4,301 $ 397 $ (657) $ 385 $ (114) (1) Refer to Note 5 , Disposition of Businesses, for further details. (2) Indian toll roads include our investments in BIF India Holdings Pte Ltd, Simhapuri Expressway Limited and Rayalseema Expressway Private Limited. (3) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian export terminal. Upon partial disposition, the operation ceased to meet the definition of a non-wholly owned subsidiary. The balance in the tables above reflect the period up until the date of partial disposition. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details. The following tables present summarized accounts for non-wholly owned subsidiaries on the Consolidated Statement of Cash Flows: Cash Flow Activities Year ended December 31, 2020 Year ended December 31, 2019 US$ MILLIONS Operating Investing Financing Operating Investing Financing Utilities U.K. regulated distribution operation $ 241 $ (372) $ 133 $ 271 $ (416) $ 147 Colombian regulated distribution operation (1) 2 — (2) 26 (24) (4) Brazilian regulated transmission operation 634 (34) (588) 839 (21) (702) Colombian natural gas distribution operation 89 (35) (55) 72 (38) (73) Brazilian electricity transmission operation 13 — (14) 22 (4) (6) Canadian district energy operation 42 (97) 55 53 (68) 14 U.S. district energy operation 51 (50) — 22 (29) 2 North American residential energy infrastructure operation (42) (5) 45 128 (228) 87 Indian gas transmission operation 136 (14) (117) 208 (1,950) 1,746 Transport Australian export terminal (3) 68 (27) (57) 91 (23) (55) North American rail operation 616 (24) (606) — (6,460) 6,578 U.K. port operation 42 (25) (11) 27 (43) 9 Australian port operation 28 (32) 26 52 (45) (10) Chilean toll roads 49 (1) (34) 62 (2) (55) Peruvian toll roads 18 (22) — 47 (39) — Indian toll roads (2) 11 (18) 19 7 (9) (29) Midstream North American gas storage operation 68 12 (53) 83 (10) (63) Western Canadian natural gas gathering and processing operation 156 (299) 114 92 (1,396) 1,339 Data U.S. data center operation 77 (16) (63) 51 (6) (35) Australian data center operation 7 (3) (3) — (277) 286 U.K. telecom towers operation 27 (20) (9) 3 (280) 289 Indian telecom towers operation 245 (3,451) 3,331 — — — Corporate Holding LP and other (182) (4) 89 (46) 243 (128) Total $ 2,396 $ (4,537) $ 2,200 $ 2,110 $ (11,125) $ 9,337 Cash Flow Activities Year ended December 31, 2018 US$ MILLIONS Operating Investing Financing Utilities U.K. regulated distribution operation $ 226 $ (413) $ 179 Colombian regulated distribution operation (1) 11 (26) — Brazilian regulated transmission operation 868 (26) (792) Colombian natural gas distribution operation 94 (217) 205 Canadian district energy operation 39 (42) (45) U.S. district energy operation 24 (16) (18) North American residential energy infrastructure business 16 (2,182) 2,188 Transport Australian export terminal (3) 85 (21) (63) U.K. port operation 27 (17) (8) Australian port operation 42 (68) 22 Chilean toll roads 74 (1) (82) Peruvian toll roads 91 (33) — Indian toll roads (2) 18 (184) 209 Midstream North American gas storage operation — (8) 7 Western Canadian natural gas gathering and processing business 48 (1,923) 1,910 Data U.S. data center operation (1) (1,103) 1,118 Corporate Holding LP and other (417) 794 (379) Total $ 1,245 $ (5,486) $ 4,451 (1) Refer to Note 5 , Disposition of Businesses, for further details. (2) Indian toll roads include our investments in BIF India Holdings Pte Ltd, Simhapuri Expressway Limited and Rayalseema Expressway Private Limited. (3) On December 7, 2020, our partnership completed the partial sale of an effective 22% interest in our Australian export terminal. Upon partial disposition, the operation ceased to meet the definition of a non-wholly owned subsidiary. The balance in the tables above reflect the period up until the date of partial disposition. Refer to Note 5, Disposition of Businesses, and Note 12, Investment in Associates and Joint Ventures, for further details.

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2020
Income Taxes [Abstract]
Deferred income tax balances	The sources of deferred income tax balances are as follows: As of December 31, US$ MILLIONS 2020 2019 Deferred income tax assets Tax losses carried forward $ 1,002 $ 397 Financial instruments and other 408 364 $ 1,410 $ 761 Deferred income tax liabilities Property, plant and equipment $ (3,367) $ (2,541) Intangible assets (2,458) (2,714) Investment in associates and investment properties (73) (14) $ (5,898) $ (5,269) Net deferred income tax liabilities $ (4,488) $ (4,508) Reflected in the Consolidated Statements of Financial Position as follows: Deferred income tax assets $ 124 $ 112 Deferred income tax liabilities (4,612) (4,620) Net deferred income tax liabilities $ (4,488) $ (4,508) The sources of deferred income tax balances and movements are as follows: Recognized in US$ MILLIONS Jan. 1, 2020 Net Income Other Comprehensive Income Other (1) Acquisitions/ Dispositions Dec. 31, 2020 Deferred income tax assets related to non-capital losses and capital losses $ 397 $ 506 $ — $ 146 $ (50) $ 999 Deferred income tax liabilities related to differences in tax and book basis, net (4,905) (560) (125) (126) 229 (5,487) Net deferred income tax liabilities $ (4,508) $ (54) $ (125) $ 20 $ 179 $ (4,488) Recognized in US$ MILLIONS Jan. 1, 2019 Net Income Other Comprehensive Income Other (1) Acquisitions/ Dispositions Dec. 31, 2019 Deferred income tax assets related to non-capital losses and capital losses $ 394 $ 40 $ — $ (22) $ (15) $ 397 Deferred income tax liabilities related to differences in tax and book basis, net (3,740) (68) (142) 54 (1,009) (4,905) Net deferred income tax liabilities $ (3,346) $ (28) $ (142) $ 32 $ (1,024) $ (4,508) (1) Other items relates to foreign exchange as deferred income taxes are calculated based on the functional currency of each operating entity. The following table details the expiry date, if applicable, of the non-capital losses: Year of Expiration US$ MILLIONS 2021 2022 2023 2024 2025 Beyond Do not expire Total As of December 31, 2020 $ 36 $ 37 $ 18 $ 7 $ 5 $ 287 $ 573 $ 963 As of December 31, 2019 5 36 38 29 4 223 323 658 US$ MILLIONS 2020 2019 2018 Deferred income tax arising on income and expenses recognized in other comprehensive income: Revaluation of property, plant and equipment $ (219) $ (148) $ (95) Cash flow hedges 63 3 3 Pension plan actuarial changes 31 3 (5) Total income tax expense recognized directly in other comprehensive income $ (125) $ (142) $ (97)
Components of income tax expense (recovery)	The major components of income tax expense include the following: For the year ended December 31, US$ MILLIONS 2020 2019 2018 Tax expense comprises: Current income tax expense $ 237 $ 250 $ 318 Deferred income tax (recovery) expense Origination and reversal of temporary differences (37) 29 53 Changes in tax rates or the imposition of new taxes 41 (20) (11) Previously unrecognized deferred taxes 50 19 4 Total income tax expense $ 291 $ 278 $ 364 Net income before income tax expense reconciles to income tax expense as follows: Net income before income tax $ 1,195 $ 928 $ 1,170 Income tax expense calculated at the domestic rates applicable to profits in the country concerned 431 304 275 Change in substantively enacted tax rates 41 (20) (11) International operations subject to different tax rates (21) (6) (17) Taxable income attributable to non-controlling interests (91) (62) (35) Portion of gains subject to different tax rates (117) 34 141 Deferred tax assets not recognized 50 19 4 Permanent differences and other (2) 9 7 Income tax expense recognized in profit or loss $ 291 $ 278 $ 364

PARTNERSHIP CAPITAL (Tables)

PARTNERSHIP CAPITAL (Tables)	12 Months Ended
	Dec. 31, 2020
Equity [abstract]
Disclosure of classes of share capital	Special and Limited Partnership Capital Special General Limited Total UNITS MILLIONS 2020 2019 2018 2020 2019 2018 2020 2019 2018 Opening balance 1.6 1.6 1.6 293.5 277.3 276.6 295.1 278.9 278.2 Issued for cash — — — 0.2 13.8 0.3 0.2 13.8 0.3 Conversion from Exchange LP Units — — — 0.3 3.2 1.3 0.3 3.2 1.3 Conversion from BIPC exchangeable shares — — — 1.4 — — 1.4 — — Repurchased and cancelled — — — — (0.8) (0.9) — (0.8) (0.9) Ending balance 1.6 1.6 1.6 295.4 293.5 277.3 297.0 295.1 278.9 Special General Partner Limited Partners Total US$ MILLIONS 2020 2019 2018 2020 2019 2018 2020 2019 2018 Opening balance $ 19 $ 19 $ 19 $ 5,495 $ 4,911 $ 4,907 $ 5,514 $ 4,930 $ 4,926 Unit issuance — — — 9 559 14 9 559 14 Conversion from Exchange LP Units — — — 3 53 20 3 53 20 Conversion from BIPC exchangeable shares — — — 19 — — 19 — — Repurchased and cancelled — — — — (28) (30) — (28) (30) Ending balance $ 19 $ 19 $ 19 $ 5,526 $ 5,495 $ 4,911 $ 5,545 $ 5,514 $ 4,930 Non-controlling interest—Redeemable Partnership Units held by Brookfield UNITS MILLIONS 2020 2019 2018 Opening balance 121.9 115.8 115.8 Issued for cash — 6.1 — Ending balance 121.9 121.9 115.8 Non-controlling interest—Redeemable Partnership Units held by Brookfield US$ MILLIONS 2020 2019 2018 Opening balance $ 2,328 $ 2,078 $ 2,078 Unit issuance — 250 — Ending balance $ 2,328 $ 2,328 $ 2,078 Non-controlling interest— BIPC exchangeable shares UNITS MILLIONS 2020 2019 2018 Opening balance — — — Non-cash issuance 46.3 — — BIPC exchangeable shares conversion (1.4) — — Ending balance 44.9 — — Non-controlling interest— BIPC exchangeable shares US$ MILLIONS 2020 2019 2018 Opening balance $ — $ — $ — BIPC exchangeable shares conversion (19) — — Ending balance $ (19) $ — $ — Non-controlling interest—Exchange LP Units held by Brookfield UNITS MILLIONS 2020 2019 2018 Opening balance 1.2 4.4 — Unit issuance 0.1 — 5.7 Exchange LP conversion (0.3) (3.2) (1.3) Ending balance 1.0 1.2 4.4 Non-controlling interest—Exchange LP Units held by Brookfield US$ MILLIONS 2020 2019 2018 Opening balance $ 159 $ 212 $ — Unit issuance — — 232 Exchange LP conversion (3) (53) (20) Ending balance $ 156 $ 159 $ 212 Preferred Units UNITS MILLIONS 2020 2019 2018 Opening balance 49.9 49.9 32.0 Issued for cash 8.0 — 18.0 Repurchased and cancelled — — (0.1) Ending balance 57.9 49.9 49.9 Preferred Units US$ MILLIONS 2020 2019 2018 Opening balance $ 935 $ 936 $ 595 Unit issuance 195 — 342 Repurchased and cancelled — (1) (1) Ending balance $ 1,130 $ 935 $ 936

ACCUMULATED OTHER COMPREHENSI_2

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of analysis of other comprehensive income by item [abstract]
Schedule of accumulated other comprehensive income (loss)	Attributable to Limited Partners US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Unrealized Equity Accumulated Balance at December 31, 2018 $ 667 $ (1,336) $ 95 $ (96) $ (33) $ (18) $ 930 $ 209 Other comprehensive income (loss) 240 (8) (71) 14 33 — 38 246 Other items (5),(6) (8) 20 6 — — — — 18 Balance at December 31, 2019 $ 899 $ (1,324) $ 30 $ (82) $ — $ (18) $ 968 $ 473 Other comprehensive income (loss) 175 (287) 7 68 39 (18) 5 (11) Issuance of BIPC exchangeable shares (1) — 18 — — — — — 18 Other items (2),(3),(4) (59) 31 — — — — — (28) Balance at December 31, 2020 $ 1,015 $ (1,562) $ 37 $ (14) $ 39 $ (36) $ 973 $ 452 (b) Attributable to General Partner US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Securities Unrealized Equity Accumulated Balance at December 31, 2018 $ 5 $ (9) $ 2 $ — $ — $ — $ 5 $ 3 Other comprehensive income 1 — — — — — — 1 Balance at December 31, 2019 $ 6 $ (9) $ 2 $ — $ — $ — $ 5 $ 4 Other comprehensive income (loss) 1 (3) — 1 — — — (1) Balance at December 31, 2020 $ 7 $ (12) $ 2 $ 1 $ — $ — $ 5 $ 3 (c) Attributable to Non-controlling interest—Redeemable Partnership Units held by Brookfield US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Unrealized Equity Accumulated Balance at December 31, 2018 $ 296 $ (552) $ 40 $ (43) $ (16) $ (4) $ 391 $ 112 Other comprehensive income (loss) 99 (3) (29) 6 14 — 16 103 Other items (5),(6) (4) 9 3 — — — — 8 Balance at December 31, 2019 $ 391 $ (546) $ 14 $ (37) $ (2) $ (4) $ 407 $ 223 Other comprehensive income (loss) 72 (119) 3 28 15 (8) 2 (7) Issuance of BIPC exchangeable shares (1) — 5 — — — — — 5 Other items (2),(3),(4) (25) 13 — — — — — (12) Balance at December 31, 2020 $ 438 $ (647) $ 17 $ (9) $ 13 $ (12) $ 409 $ 209 (d) Attributable to Non-controlling interest—BIPC exchangeable shares US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Unrealized Equity Accumulated Balance at December 31, 2019 $ — $ — $ — $ — $ — $ — $ — $ — Other comprehensive income (loss) 29 51 (6) 22 5 (3) (11) 87 Issuance of BIPC exchangeable shares (1) — (23) — — — — — (23) Other items (4) (2) — — — — — — (2) Balance at December 31, 2020 $ 27 $ 28 $ (6) $ 22 $ 5 $ (3) $ (11) $ 62 (e) Attributable to Non-controlling interest—Exchange LP Units US$ MILLIONS Revaluation Foreign Net Cash Flow Marketable Unrealized Equity Accumulated Balance at December 31, 2018 $ 2 $ 1 $ — $ (1) $ — $ — $ 2 $ 4 Other comprehensive income 1 — — — — — — 1 Balance at December 31, 2019 $ 3 $ 1 $ — $ (1) $ — $ — $ 2 $ 5 Other comprehensive income (loss) 1 (2) — 1 — — — — Other items — — — — — — — — Balance at December 31, 2020 $ 4 $ (1) $ — $ — $ — $ — $ 2 $ 5 (1) In relation to the special distribution of BIPC, $23 million of accumulated other comprehensive income was reallocated to BIPC exchangeable shares. Refer to Note 1, Organization and Description of the Business, for further details. (2) In relation to the partial disposition of a further 33% interest in our Chilean toll road business, $44 million of accumulated other comprehensive loss was reclassified directly to retained earnings in the Consolidated Statements of Partnership Capital. Refer to Note 5, Disposition of Businesses, for further details. (3) In relation to the disposition of a 17% interest in our Colombian regulated distribution operation, $61 million (net of tax) of revaluation surplus gains were reclassified from accumulated other comprehensive income directly to retained earnings and recorded within Other items on the Consolidated Statements of Partnership Capital. Refer to Note 5, Disposition of Businesses, for further details. (4) In relation to the disposition of a 11% interest in our Texas electricity transmission operation, $25 million (net of tax) of revaluation surplus gains were reclassified from accumulated other comprehensive income directly to retained earnings and recorded within Other items on the Consolidated Statements of Partnership Capital. Refer to Note 13, Investments in Associates and Joint Ventures, for further details. (5) In relation to the initial partial disposition of a 33% interest in our Chilean toll road business, $38 million of accumulated other comprehensive loss, was reclassified directly to retained earnings in the Consolidated Statements of Partnership Capital.

DISTRIBUTIONS (Tables)

DISTRIBUTIONS (Tables)	12 Months Ended
	Dec. 31, 2020
Distributions [Abstract]
Disclosure of Dividends	The following table outlines distributions made to each class of partnership units, including BIPC exchangeable shares and Exchange LP units that are exchangeable into limited partner units. For the year ended December 31, US$ MILLIONS 2020 2019 2018 Limited Partners $ (588) $ (575) $ (520) General Partner (1) (185) (158) (140) Non-controlling interest attributable to: Redeemable Partnership Units held by Brookfield (240) (241) (216) BIPC exchangeable shares (66) — — Exchange LP Units (4) (4) (2) Preferred unitholders (51) (49) (41) Total Distributions $ (1,134) $ (1,027) $ (919) For the year ended December 31, PER UNIT/SHARE (2) 2020 2019 2018 Limited Partners $ 1.94 $ 1.81 $ 1.69 General Partner (1) 1.94 1.81 1.69 Non-controlling interest attributable to: Redeemable Partnership Units held by Brookfield 1.94 1.81 1.69 BIPC exchangeable shares 1.94 1.81 1.69 Exchange LP Units 1.94 1.81 1.69 Preferred unitholders 0.97 0.98 0.97 (1) Distributions to the General Partner include $183 million of incentive distributions for the year ended December 31, 2020 (2019: $158 million, 2018: $136 million). (2) Our partnership paid a distribution of $0.5375 per unit in March 2020. On March 31, 2020, our partnership completed the previously announced creation of BIPC with a special distribution of BIPC exchangeable shares. The special distribution resulted in the issuance of approximately 46.3 million BIPC exchangeable shares. Current and historical per unit disclosures have been retroactively adjusted for the impact of the special distribution. Refer to Note 1, Organization and Description of the Business, for further details.

RETIREMENT BENEFIT PLANS (Table

RETIREMENT BENEFIT PLANS (Tables)	12 Months Ended
	Dec. 31, 2020
Employee Benefits [Abstract]
Disclosure of defined benefit plans	US$ MILLIONS 2020 2019 Plan assets $ 833 $ 686 Less accrued benefit obligation (1,164) (851) Accrued benefit liability (1) $ (331) $ (165)

DERIVATIVE FINANCIAL INSTRUME_2

DERIVATIVE FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
Notional amount of derivative positions	The aggregate notional amount of Brookfield Infrastructure’s derivative positions at December 31, 2020 and 2019 were as follows: US$ MILLIONS Note 2020 2019 Foreign exchange contracts (a) $ 3,274 $ 4,626 Interest rates swaps and other (b) 11,437 11,163 Commodity contracts 32 66 $ 14,743 $ 15,855 Brookfield Infrastructure held the following foreign exchange contracts with notional amounts at December 31, 2020 and 2019. Notional Amount Average US$ MILLIONS 2020 2019 2020 2019 Foreign exchange contracts British pounds $ 1,404 $ 2,882 $ 1.31 $ 1.31 Canadian dollars 612 4 0.75 0.76 Australian dollars 609 1,102 0.69 0.73 Indian rupees 308 — 0.013 — European Union euros 239 365 1.21 1.25 Chilean pesos 34 242 0.0013 0.0015 Colombian pesos 28 19 0.0003 0.0003 Peruvian soles 12 12 0.28 0.29 Other 28 — — — $ 3,274 $ 4,626
Disclosure of change in fair values of derivative positions	The following table presents the change in fair values of Brookfield Infrastructure’s derivative positions during the years ended December 31, 2020 and 2019: US$ MILLIONS Unrealized Gains Unrealized Losses Net Change During 2020 Net Change During 2019 Foreign exchange derivatives $ 196 $ (409) $ (213) $ (128) Interest rate derivatives 460 (633) (173) (31) Commodity derivatives — (17) (17) — $ 656 $ (1,059) $ (403) $ (159)
Disclosure of information about terms and conditions of hedging instruments	The following table presents the notional amounts underlying Brookfield Infrastructure’s derivative instruments by term to maturity as at December 31, 2020 and the comparative notional amounts at December 31, 2019, for both derivatives that are classified as fair value through profit or loss and derivatives that qualify for hedge accounting: 2020 2019 US$ MILLIONS < 1 year 1 to 5 years > 5 years Total Notional Total Notional Fair value through profit or loss Foreign exchange derivatives $ 867 $ 856 $ — $ 1,723 $ 1,416 Interest rate derivatives Interest rate swaps, cross currency interest rate swaps and other 75 704 — 779 53 Inflation linked swaps — 172 — 172 167 Commodity contracts 32 — — 32 66 $ 974 $ 1,732 $ — $ 2,706 $ 1,702 Elected for hedge accounting Foreign exchange derivatives $ 438 $ 510 $ 603 $ 1,551 $ 3,210 Interest rate derivatives Interest rate and cross currency interest rate swaps 429 6,081 3,976 10,486 10,943 $ 867 $ 6,591 $ 4,579 $ 12,037 $ 14,153
Disclosure of derivatives elected for hedge accounting	The following table classifies derivatives elected for hedge accounting during the years ended December 31, 2020 and 2019 as either cash flow hedges or net investment hedges. Changes in the fair value of the effective portion of the hedges are recorded in either other comprehensive income or net income, depending on the hedge classification, whereas changes in the fair value of the ineffective portion of the hedge are recorded in net income: 2020 2019 AS AT AND FOR THE YEARS ENDED (MILLIONS) Notional Effective Ineffective Notional Effective Ineffective Cash flow hedges $ 11,089 $ (160) $ 9 $ 10,943 $ (33) $ (1) Net investment hedges 948 32 2 3,210 (113) 16 $ 12,037 $ (128) $ 11 $ 14,153 $ (146) $ 15

FINANCIAL RISK MANAGEMENT (Tabl

FINANCIAL RISK MANAGEMENT (Tables)	12 Months Ended
	Dec. 31, 2020
Financial Instruments [Abstract]
Disclosure of capital structure	The capital structure of Brookfield Infrastructure consists of debt, offset by cash and cash equivalents, and partnership capital comprised of issued capital and accumulated gains. US$ MILLIONS 2020 2019 Corporate borrowings $ 3,158 $ 2,475 Non-recourse borrowings 20,020 18,544 Subsidiary and corporate borrowings 23,178 21,019 Preferred shares 20 20 Cash and cash equivalents (1) (1,393) (969) Net debt 21,805 20,070 Total partnership capital 21,673 22,177 Total capital and net debt $ 43,478 $ 42,247 Net debt to capitalization ratio 50 % 48 % (1) Includes marketable securities.
Disclosure of liquidity management	Brookfield Infrastructure’s corporate liquidity as at December 31 was as follows: US$ MILLIONS (1) 2020 2019 Corporate cash and financial assets $ 464 $ 273 Availability under committed credit facilities (2) 3,475 2,475 Draws on credit facility (1,131) (820) Deposit from parent (545) — Commitments under credit facility (63) (54) Corporate liquidity $ 2,200 $ 1,874 (1) Liquidity managed by Brookfield Infrastructure L.P. and affiliated corporate entities. (2) Includes a $1.975 billion committed corporate credit facility, a $500 million credit facility with Brookfield and an incremental $1.0 billion syndicated revolving credit facility. Refer to Note 19, Borrowings, for further details.
Disclosure of maturity analysis for financial liabilities	The following tables detail the contractual maturities for Brookfield Infrastructure’s financial liabilities. The tables reflect the undiscounted cash flows of financial liabilities based on the earliest date on which Brookfield Infrastructure can be required to pay. The tables include both interest and principal cash flows: Less than 1-2 years 2-5 years 5+ years Total December 31, 2020 US$ MILLIONS Accounts payable and other liabilities $ 2,346 $ 27 $ 71 $ 301 $ 2,745 Corporate borrowings — — 1,681 1,492 3,173 Non-recourse borrowings (1) 1,052 881 8,336 9,908 20,177 Financial liabilities 696 1,138 350 1,190 3,374 Lease liabilities 279 247 647 3,685 4,858 Interest Expense: Corporate borrowings 72 72 163 170 477 Non-recourse borrowings 853 811 1,970 2,592 6,226 (1) As of December 31, 2020, approximately $540 million of debt was in breach of asset-level financial covenants. We anticipate being able to refinance or obtain waivers from our financial institutions and accordingly presented the debt in the contractually obligated year of maturity. Less than 1-2 years 2-5 years 5+ years Total December 31, 2019 US$ MILLIONS Accounts payable and other liabilities $ 1,626 $ 29 $ 31 $ 187 $ 1,873 Corporate borrowings — — 1,705 770 2,475 Non-recourse borrowings 1,405 1,019 7,110 9,142 18,676 Financial liabilities 327 293 1,080 473 2,173 Lease liabilities 223 194 475 1,903 2,795 Interest Expense: Corporate borrowings 74 74 165 123 436 Non-recourse borrowings 715 660 1,762 2,483 5,620
Disclosure of sensitivity analysis for interest rate and foreign exchange risk	The sensitivity analyses below reflect Brookfield Infrastructure’s exposure to interest rates for both derivative and non-derivative instruments at the reporting date, assuming that a 10 basis point increase or decrease in rates takes place at the beginning of the financial year and is held constant throughout the reporting period. The sensitivity analyses assume a 10 basis point change to reflect the current methodology employed by Brookfield Infrastructure in assessing interest rate risk. Such parallel shift in the yield curve by 10 basis points would have had the following impact, assuming all other variables were held constant: 2020 2019 2018 US$ MILLIONS 10 bp 10 bp 10 bp 10 bp 10 bp 10 bp Net income $ 1 $ (1) $ 1 $ (1) $ 1 $ (1) Other comprehensive income (loss) (1) 1 (2) 2 (2) 2 The following tables detail Brookfield Infrastructure’s sensitivity to a 10% increase and decrease in the U.S. dollar against the relevant foreign currencies, with all other variables held constant as at reporting date. 10% is the sensitivity rate used when reporting foreign currency risk internally. The sensitivity analysis is performed as follows: • Outstanding foreign currency denominated monetary items (excluding foreign exchange derivative contracts) are adjusted at period end for a 10% change in foreign currency rates from the rate at which they are translated; • Foreign currency derivative contracts are measured as the change in fair value of the derivative as a result of a 10% change in the spot currency rate; and • The impact on net income results from performing a sensitivity of a 10% change in foreign exchange rates applied to the profit or loss contribution from foreign operations (after considering the impact of foreign exchange derivative contracts). Impact on Net Income 2020 2019 2018 US$ MILLIONS -10% 10% -10% 10% -10% 10% USD/AUD $ 4 $ (4) $ 4 $ (4) $ (20) $ 20 USD/EUR 2 (2) — — (19) 19 USD/GBP 5 (5) 7 (7) (11) 11 USD/CLP (1) 1 — — (3) 3 USD/COP 1 (1) 1 (1) 1 (1) USD/BRL 15 (15) 18 (18) 10 (10) USD/CAD 4 (4) 1 (1) (2) 2 USD/INR (3) 3 (2) 2 (1) 1 USD/NZD (1) 1 — — — — Impact on Partnership Capital 2020 2019 US$ MILLIONS -10% 10% -10% 10% USD/AUD $ 70 $ (70) $ 12 $ (12) USD/EUR 14 (14) — — USD/GBP 105 (105) — — USD/CLP (5) 5 (24) 24 USD/COP 8 (8) 2 (2) USD/BRL 158 (158) 227 (227) USD/CAD 1 (1) — — USD/PEN 10 (10) 11 (11) USD/INR 58 (58) 27 (27)
Disclosure of foreign currency exposure	The tables below set out Brookfield Infrastructure’s currency exposure at December 31, 2020 and 2019: 2020 US$ MILLIONS USD AUD GBP BRL CLP CAD EUR COP PEN INR NZD & Other Total Assets: Current assets $ 805 $ 314 $ 471 $ 420 $ 126 $ 492 $ 145 $ 216 $ 105 $ 573 $ 44 $ 3,711 Non-current assets 14,313 4,042 8,939 5,210 834 9,334 903 1,256 1,247 10,979 563 57,620 $ 15,118 $ 4,356 $ 9,410 $ 5,630 $ 960 $ 9,826 $ 1,048 $ 1,472 $ 1,352 $ 11,552 $ 607 $ 61,331 Liabilities: Current liabilities $ 1,875 $ 446 $ 877 $ 214 $ 125 $ 602 $ 24 $ 246 $ 438 $ 620 $ 57 $ 5,524 Non-current liabilities 10,887 1,842 4,939 2,970 1,148 4,994 118 478 212 6,389 157 34,134 12,762 2,288 5,816 3,184 1,273 5,596 142 724 650 7,009 214 39,658 Non-controlling interest—in operating subsidiaries and preferred unitholders 5,186 488 726 871 (335) 4,020 — 636 591 2,901 — 15,084 Non-controlling interest—Redeemable Partnership Units held by Brookfield (725) 405 734 403 6 54 232 29 28 420 101 1,687 Non-controlling interest—BIPC exchangeable shares (275) 153 278 153 2 20 88 11 11 159 38 638 Non-controlling interest—Exchange LP (5) 3 5 3 — — 2 — — 3 1 12 Net investment attributable to limited partners and general partner $ (1,825) $ 1,019 $ 1,851 $ 1,016 $ 14 $ 136 $ 584 $ 72 $ 72 $ 1,060 $ 253 $ 4,252 2019 US$ MILLIONS USD AUD GBP BRL CLP CAD EUR COP PEN INR NZD & Other Total Assets: Current assets $ 1,232 $ 1,914 $ 430 $ 456 $ 95 $ 316 $ 23 $ 971 $ 122 $ 231 $ 51 $ 5,841 Non-current assets 14,594 5,488 7,195 6,889 821 8,541 764 1,166 1,337 3,143 529 50,467 $ 15,826 $ 7,402 $ 7,625 $ 7,345 $ 916 $ 8,857 $ 787 $ 2,137 $ 1,459 $ 3,374 $ 580 $ 56,308 Liabilities: Current liabilities $ 1,345 $ 1,530 $ 749 $ 211 $ 68 $ 456 $ 24 $ 724 $ 19 $ 265 $ 48 $ 5,439 Non-current liabilities 8,908 3,703 4,211 3,448 1,112 4,639 73 314 683 1,482 119 28,692 10,253 5,233 4,960 3,659 1,180 5,095 97 1,038 702 1,747 167 34,131 Non-controlling interest—in operating subsidiaries and preferred unitholders 5,704 475 754 1,414 (320) 4,066 — 957 638 1,360 — 15,048 Non-controlling interest—Redeemable Partnership Units held by Brookfield (37) 485 547 650 16 (87) 197 41 34 76 117 2,039 Non-controlling interest—Exchange LP — 4 5 6 — (1) 2 — — 1 1 18 Net investment attributable to limited partners and general partner $ (94) $ 1,205 $ 1,359 $ 1,616 $ 40 $ (216) $ 491 $ 101 $ 85 $ 190 $ 295 $ 5,072 The following tables detail Brookfield Infrastructure’s sensitivity to a 10% increase and decrease in the U.S. dollar against the relevant foreign currencies, with all other variables held constant as at reporting date. 10% is the sensitivity rate used when reporting foreign currency risk internally. The sensitivity analysis is performed as follows: • Outstanding foreign currency denominated monetary items (excluding foreign exchange derivative contracts) are adjusted at period end for a 10% change in foreign currency rates from the rate at which they are translated; • Foreign currency derivative contracts are measured as the change in fair value of the derivative as a result of a 10% change in the spot currency rate; and • The impact on net income results from performing a sensitivity of a 10% change in foreign exchange rates applied to the profit or loss contribution from foreign operations (after considering the impact of foreign exchange derivative contracts). Impact on Net Income 2020 2019 2018 US$ MILLIONS -10% 10% -10% 10% -10% 10% USD/AUD $ 4 $ (4) $ 4 $ (4) $ (20) $ 20 USD/EUR 2 (2) — — (19) 19 USD/GBP 5 (5) 7 (7) (11) 11 USD/CLP (1) 1 — — (3) 3 USD/COP 1 (1) 1 (1) 1 (1) USD/BRL 15 (15) 18 (18) 10 (10) USD/CAD 4 (4) 1 (1) (2) 2 USD/INR (3) 3 (2) 2 (1) 1 USD/NZD (1) 1 — — — — Impact on Partnership Capital 2020 2019 US$ MILLIONS -10% 10% -10% 10% USD/AUD $ 70 $ (70) $ 12 $ (12) USD/EUR 14 (14) — — USD/GBP 105 (105) — — USD/CLP (5) 5 (24) 24 USD/COP 8 (8) 2 (2) USD/BRL 158 (158) 227 (227) USD/CAD 1 (1) — — USD/PEN 10 (10) 11 (11) USD/INR 58 (58) 27 (27)

CAPITAL MANAGEMENT (Tables)

CAPITAL MANAGEMENT (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of Capital Management [Abstract]
Schedule of invested capital	We define Invested Capital as partnership capital removing the impact of the following items: non-controlling interest - in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes. US$ MILLIONS 2020 2019 Partnership Capital $ 21,673 $ 22,177 Remove impact of the following items since inception: Non-controlling interest - in operating subsidiaries (13,954) (14,113) Deficit 2,752 2,048 Accumulated other comprehensive income (731) (705) Ownership changes (527) (398) Invested Capital $ 9,213 $ 9,009 The following table presents the change in Invested Capital during year ended December 31, 2020: US$ MILLIONS 2020 2019 Opening balance $ 9,009 $ 8,156 Issuance of preferred units and preferred shares, net of repurchases 195 72 Issuances of limited partnership units and redeemable partnership units, net of repurchases 9 781 Ending balance $ 9,213 $ 9,009 Weighted Average Invested Capital $ 9,067 $ 8,563

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2020
Cash Flow Statement [Abstract]
Disclosure of interest and income taxes paid	For the year ended US$ MILLIONS 2020 2019 2018 Interest paid $ 985 $ 829 $ 507 Income taxes paid $ 172 $ 179 $ 427
Disclosure of changes in non-cash working capital	Details of “Changes in non-cash working capital, net” on the Consolidated Statements of Cash Flows are as follows: For the year ended US$ MILLIONS 2020 2019 2018 Accounts receivable $ 284 $ 42 $ 176 Prepayments (415) (120) 5 Accounts payable and other (89) 146 (305) Changes in non-cash working capital, net $ (220) $ 68 $ (124)

ORGANIZATION AND DESCRIPTION _2

ORGANIZATION AND DESCRIPTION OF THE BUSINESS (Details)	Mar. 31, 2020shares
Organization And Description Of The Business [Line Items]
Class A shares received by Brookfield and its subsidiaries	13,700,000
Class A shares received by the partnership	32,600,000
Percentage of issued and outstanding exchangeable shares held by holders of units	70.40%
Percentage of issued and outstanding exchangeable shares held by Brookfield	29.60%
Percentage of voting interest in company	75.00%
Exchangeable shares issued as a result of special distribution	46,300,000
Non-controlling interest— BIPC exchangeable shares
Organization And Description Of The Business [Line Items]
Conversion ratio	1
Limited Partners
Organization And Description Of The Business [Line Items]
Conversion ratio	9

SUBSIDIARIES (Details)

SUBSIDIARIES (Details)	Dec. 07, 2020	Dec. 31, 2020	Dec. 31, 2019
Australian rail operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		100.00%	100.00%
U.K. regulated distribution operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		80.00%	80.00%
Voting interest (%)		80.00%	80.00%
Canadian district energy operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		25.00%	25.00%
Voting interest (%)		100.00%	100.00%
U.S. district energy operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		40.00%	40.00%
Voting interest (%)		100.00%	100.00%
Colombian regulated distribution operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		0.00%	17.00%
Voting interest (%)		0.00%	100.00%
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		28.00%	28.00%
Voting interest (%)		90.00%	90.00%
Colombian natural gas distribution operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		21.00%	16.00%
Voting interest (%)		75.00%	55.00%
Brazilian electricity transmission operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		31.00%	31.00%
Voting interest (%)		100.00%	100.00%
North American residential energy infrastructure operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		30.00%	30.00%
Voting interest (%)		100.00%	100.00%
Indian gas transmission operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		24.00%	24.00%
Voting interest (%)		83.00%	83.00%
Australian export terminal
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary	49.00%	0.00%	71.00%
Voting interest (%)		0.00%	100.00%
Disposal of ownership interest, percentage	22.00%
North American rail operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		9.00%	9.00%
Voting interest (%)		72.00%	72.00%
U.K. ports operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		59.00%	59.00%
Voting interest (%)		100.00%	100.00%
Australian port operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		27.00%	27.00%
Voting interest (%)		67.00%	67.00%
Chilean toll roads
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		17.00%	34.00%
Voting interest (%)		60.00%	60.00%
Indian toll roads
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		40.00%	40.00%
Voting interest (%)		93.00%	93.00%
Peruvian toll roads
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		17.00%	17.00%
Voting interest (%)		57.00%	57.00%
Indian toll roads - Simhapuri Expressway Limited
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		29.00%	29.00%
Voting interest (%)		93.00%	93.00%
Indian roll roads - Rayalseema Expressway Limited
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		26.00%	26.00%
Voting interest (%)		84.00%	84.00%
North American gas storage - Warwick Gas Storage L.P.
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		25.00%	25.00%
Voting interest (%)		100.00%	100.00%
North American gas storage operation - Lodi Gas Storage
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		40.00%	40.00%
Voting interest (%)		100.00%	100.00%
North American gas storage operation - Rockpoint Gas Storage Partners L.P.
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		40.00%	40.00%
Voting interest (%)		100.00%	100.00%
Western Canadian natural gas gathering and processing operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		29.00%	29.00%
Voting interest (%)		100.00%	100.00%
U.S. data center operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		29.00%	29.00%
Voting interest (%)		100.00%	100.00%
Australian data center operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		29.00%	29.00%
Voting interest (%)		100.00%	100.00%
Indian telecom towers operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		17.00%	0.00%
Voting interest (%)		62.00%	0.00%
U.K. telecom towers operation
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		25.00%	25.00%
Voting interest (%)		100.00%	100.00%
Holding LP
Disclosure of subsidiaries [line items]
Proportion of ownership interest in subsidiary		70.00%	70.00%
Voting interest (%)		100.00%	100.00%

SIGNIFICANT ACCOUNTING POLICI_4

SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
	Dec. 31, 2020
Chilean toll roads
Disclosure of detailed information about intangible assets [line items]
Remaining amortisation period of intangible asset	13 years
Indian toll roads
Disclosure of detailed information about intangible assets [line items]
Remaining amortisation period of intangible asset	16 years
Peruvian toll roads
Disclosure of detailed information about intangible assets [line items]
Remaining amortisation period of intangible asset	22 years
Buildings | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Useful life measured as period of time, property, plant and equipment	75 years
Transmission stations, towers and related fixtures | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Useful life measured as period of time, property, plant and equipment	40 years
Leasehold improvements | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Useful life measured as period of time, property, plant and equipment	50 years
Plant and equipment | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Useful life measured as period of time, property, plant and equipment	40 years
Network systems | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Useful life measured as period of time, property, plant and equipment	65 years
Track | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Useful life measured as period of time, property, plant and equipment	40 years
District energy systems | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Useful life measured as period of time, property, plant and equipment	50 years
Pipelines | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Useful life measured as period of time, property, plant and equipment	20 years
Gas storage assets | Top of range
Disclosure of detailed information about property, plant and equipment [line items]
Useful life measured as period of time, property, plant and equipment	50 years

SEGMENT INFORMATION (Operating

SEGMENT INFORMATION (Operating Segments) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Revenues	$ 8,885,000,000	$ 6,597,000,000	$ 4,652,000,000
Costs attributed to revenues	(4,843,000,000)	(3,395,000,000)	(2,208,000,000)
General and administrative costs	(312,000,000)	(279,000,000)	(223,000,000)
Other (expense) income	(87,000,000)	(28,000,000)	(34,000,000)
Interest expense	(1,179,000,000)	(904,000,000)	(555,000,000)
Depreciation and amortization	(1,705,000,000)	(1,214,000,000)	(801,000,000)
Deferred taxes	(54,000,000)	(28,000,000)	(46,000,000)
Mark-to-market on hedging items and other	68,000,000	(323,000,000)	(175,000,000)
Gain on sale of associate, net of tax			209,000,000
Share of earnings from associates	131,000,000	224,000,000	(13,000,000)
Net income attributable to non-controlling interest	(510,000,000)	(417,000,000)	(396,000,000)
Net income (loss) attributable to partnership	394,000,000	233,000,000	410,000,000
Utilities
Disclosure of operating segments [line items]
Revenues	4,083,000,000	4,265,000,000	2,811,000,000
Transport
Disclosure of operating segments [line items]
Revenues	3,449,000,000	1,617,000,000	1,629,000,000
Midstream
Disclosure of operating segments [line items]
Revenues	643,000,000	399,000,000	212,000,000
Data
Disclosure of operating segments [line items]
Revenues	710,000,000	316,000,000	0
Operating segments
Disclosure of operating segments [line items]
Revenues	4,098,000,000	3,873,000,000	3,505,000,000
Costs attributed to revenues	(1,793,000,000)	(1,695,000,000)	(1,669,000,000)
General and administrative costs	(312,000,000)	(279,000,000)	(223,000,000)
Adjusted EBITDA	1,993,000,000	1,899,000,000	1,613,000,000
Other (expense) income	84,000,000	70,000,000	62,000,000
Interest expense	(623,000,000)	(585,000,000)	(444,000,000)
FFO	1,454,000,000	1,384,000,000	1,231,000,000
Depreciation and amortization	(1,034,000,000)	(895,000,000)	(758,000,000)
Deferred taxes	3,000,000	(77,000,000)	12,000,000
Mark-to-market on hedging items and other	(29,000,000)	(179,000,000)	(284,000,000)
Gain on sale of associate, net of tax			209,000,000
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest	0	0	0
Net income (loss) attributable to partnership	394,000,000	233,000,000	410,000,000
Operating segments | Utilities
Disclosure of operating segments [line items]
Revenues	1,434,000,000	1,432,000,000	1,070,000,000
Costs attributed to revenues	(580,000,000)	(582,000,000)	(371,000,000)
General and administrative costs	0	0	0
Adjusted EBITDA	854,000,000	850,000,000	699,000,000
Other (expense) income	(43,000,000)	(31,000,000)	(25,000,000)
Interest expense	(152,000,000)	(147,000,000)	(103,000,000)
FFO	659,000,000	672,000,000	571,000,000
Depreciation and amortization	(268,000,000)	(264,000,000)	(211,000,000)
Deferred taxes	(80,000,000)	(41,000,000)	(34,000,000)
Mark-to-market on hedging items and other	(91,000,000)	(64,000,000)	(99,000,000)
Gain on sale of associate, net of tax			0
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest	0	0	0
Net income (loss) attributable to partnership	220,000,000	303,000,000	227,000,000
Operating segments | Transport
Disclosure of operating segments [line items]
Revenues	1,573,000,000	1,614,000,000	1,831,000,000
Costs attributed to revenues	(767,000,000)	(781,000,000)	(1,044,000,000)
General and administrative costs	0	0	0
Adjusted EBITDA	806,000,000	833,000,000	787,000,000
Other (expense) income	(2,000,000)	(3,000,000)	2,000,000
Interest expense	(214,000,000)	(227,000,000)	(203,000,000)
FFO	590,000,000	603,000,000	586,000,000
Depreciation and amortization	(419,000,000)	(370,000,000)	(361,000,000)
Deferred taxes	30,000,000	25,000,000	38,000,000
Mark-to-market on hedging items and other	(116,000,000)	(168,000,000)	(215,000,000)
Gain on sale of associate, net of tax			0
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest	0	0	0
Net income (loss) attributable to partnership	85,000,000	90,000,000	48,000,000
Operating segments | Midstream
Disclosure of operating segments [line items]
Revenues	572,000,000	491,000,000	434,000,000
Costs attributed to revenues	(193,000,000)	(171,000,000)	(177,000,000)
General and administrative costs	0	0	0
Adjusted EBITDA	379,000,000	320,000,000	257,000,000
Other (expense) income	3,000,000	10,000,000	17,000,000
Interest expense	(93,000,000)	(86,000,000)	(68,000,000)
FFO	289,000,000	244,000,000	206,000,000
Depreciation and amortization	(153,000,000)	(131,000,000)	(114,000,000)
Deferred taxes	(10,000,000)	(55,000,000)	(9,000,000)
Mark-to-market on hedging items and other	(31,000,000)	132,000,000	(49,000,000)
Gain on sale of associate, net of tax			0
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest	0	0	0
Net income (loss) attributable to partnership	95,000,000	190,000,000	34,000,000
Operating segments | Data
Disclosure of operating segments [line items]
Revenues	519,000,000	336,000,000	170,000,000
Costs attributed to revenues	(253,000,000)	(161,000,000)	(77,000,000)
General and administrative costs	0	0	0
Adjusted EBITDA	266,000,000	175,000,000	93,000,000
Other (expense) income	(1,000,000)	3,000,000	(4,000,000)
Interest expense	(69,000,000)	(42,000,000)	(12,000,000)
FFO	196,000,000	136,000,000	77,000,000
Depreciation and amortization	(194,000,000)	(129,000,000)	(72,000,000)
Deferred taxes	74,000,000	10,000,000	7,000,000
Mark-to-market on hedging items and other	(44,000,000)	(30,000,000)	(6,000,000)
Gain on sale of associate, net of tax			0
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest	0	0	0
Net income (loss) attributable to partnership	32,000,000	(13,000,000)	6,000,000
Operating segments | Corporate
Disclosure of operating segments [line items]
Revenues	0	0	0
Costs attributed to revenues	0	0	0
General and administrative costs	(312,000,000)	(279,000,000)	(223,000,000)
Adjusted EBITDA	(312,000,000)	(279,000,000)	(223,000,000)
Other (expense) income	127,000,000	91,000,000	72,000,000
Interest expense	(95,000,000)	(83,000,000)	(58,000,000)
FFO	(280,000,000)	(271,000,000)	(209,000,000)
Depreciation and amortization	0	(1,000,000)	0
Deferred taxes	(11,000,000)	(16,000,000)	10,000,000
Mark-to-market on hedging items and other	253,000,000	(49,000,000)	85,000,000
Gain on sale of associate, net of tax			209,000,000
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest	0	0	0
Net income (loss) attributable to partnership	(38,000,000)	(337,000,000)	95,000,000
Contribution from investments in associates
Disclosure of operating segments [line items]
Revenues	(1,379,000,000)	(1,424,000,000)	(1,524,000,000)
Costs attributed to revenues	600,000,000	649,000,000	833,000,000
General and administrative costs	0	0	0
Adjusted EBITDA	(779,000,000)	(775,000,000)	(691,000,000)
Other (expense) income	17,000,000	11,000,000	11,000,000
Interest expense	177,000,000	173,000,000	134,000,000
FFO	(585,000,000)	(591,000,000)	(546,000,000)
Depreciation and amortization	471,000,000	399,000,000	370,000,000
Deferred taxes	(65,000,000)	52,000,000	(44,000,000)
Mark-to-market on hedging items and other	48,000,000	(84,000,000)	233,000,000
Gain on sale of associate, net of tax			0
Share of earnings from associates	131,000,000	224,000,000	(13,000,000)
Net income attributable to non-controlling interest	0	0	0
Net income (loss) attributable to partnership	0	0	0
Attributable to non- controlling interest
Disclosure of operating segments [line items]
Revenues	6,166,000,000	4,148,000,000	2,671,000,000
Costs attributed to revenues	(3,650,000,000)	(2,349,000,000)	(1,372,000,000)
General and administrative costs	0	0	0
Adjusted EBITDA	2,516,000,000	1,799,000,000	1,299,000,000
Other (expense) income	(188,000,000)	(109,000,000)	(107,000,000)
Interest expense	(733,000,000)	(492,000,000)	(245,000,000)
FFO	1,595,000,000	1,198,000,000	947,000,000
Depreciation and amortization	(1,142,000,000)	(718,000,000)	(413,000,000)
Deferred taxes	8,000,000	(3,000,000)	(14,000,000)
Mark-to-market on hedging items and other	49,000,000	(60,000,000)	(124,000,000)
Gain on sale of associate, net of tax			0
Share of earnings from associates	0	0	0
Net income attributable to non-controlling interest	(510,000,000)	(417,000,000)	(396,000,000)
Net income (loss) attributable to partnership	$ 0	$ 0	$ 0

SEGMENT INFORMATION (Assets) (D

SEGMENT INFORMATION (Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of operating segments [line items]
Assets	$ 61,331	$ 56,308
Operating segments
Disclosure of operating segments [line items]
Assets	21,074	19,250
Operating segments | Utilities
Disclosure of operating segments [line items]
Assets	6,814	6,679
Operating segments | Transport
Disclosure of operating segments [line items]
Assets	9,155	7,962
Operating segments | Midstream
Disclosure of operating segments [line items]
Assets	3,829	3,689
Operating segments | Data
Disclosure of operating segments [line items]
Assets	3,338	2,204
Operating segments | Corporate
Disclosure of operating segments [line items]
Assets	(2,062)	(1,284)
Contribution from investments in associates
Disclosure of operating segments [line items]
Assets	(4,895)	(2,884)
Attributable to non- controlling interest
Disclosure of operating segments [line items]
Assets	37,851	32,621
Working capital adjustment and other
Disclosure of operating segments [line items]
Assets	$ 7,301	$ 7,321

SEGMENT INFORMATION (Geographic

SEGMENT INFORMATION (Geographic Information) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)customer	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Disclosure of geographical areas [line items]
Revenues	$ 8,885	$ 6,597	$ 4,652
Non-current Assets	57,620	50,467
Partnership's Revenue | Customer Concentration Risk
Disclosure of geographical areas [line items]
Revenues	$ 942	1,141
Number of customers | customer	1
United States
Disclosure of geographical areas [line items]
Revenues	$ 2,279	921	293
Non-current Assets	13,372	13,671
Canada
Disclosure of geographical areas [line items]
Revenues	1,461	976	379
Non-current Assets	10,057	9,243
United Kingdom
Disclosure of geographical areas [line items]
Revenues	1,305	688	653
Non-current Assets	8,940	7,196
Brazil
Disclosure of geographical areas [line items]
Revenues	981	1,142	1,112
Non-current Assets	5,404	7,103
Australia
Disclosure of geographical areas [line items]
Revenues	916	1,031	1,104
Non-current Assets	4,042	5,488
Colombia
Disclosure of geographical areas [line items]
Revenues	799	1,054	693
Non-current Assets	1,256	1,166
India
Disclosure of geographical areas [line items]
Revenues	740	399	60
Non-current Assets	10,986	3,150
Chile
Disclosure of geographical areas [line items]
Revenues	117	163	168
Non-current Assets	841	821
Peru
Disclosure of geographical areas [line items]
Revenues	81	107	92
Non-current Assets	1,247	1,337
Europe
Disclosure of geographical areas [line items]
Non-current Assets	1,022	764
Other
Disclosure of geographical areas [line items]
Revenues	206	116	$ 98
Non-current Assets	$ 453	$ 528
Bottom of range | Partnership's Revenue | Customer Concentration Risk
Disclosure of geographical areas [line items]
Percentage of entity's revenue	10.00%

DISPOSITION OF BUSINESSES - Add

DISPOSITION OF BUSINESSES - Additional Information (Details) - USD ($) $ in Millions	Dec. 07, 2020	Feb. 15, 2020	Feb. 06, 2020	Jan. 14, 2020	Feb. 07, 2019	Nov. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Associates And Joint Ventures [Line Items]
Gain on sale of associate							$ 0	$ 0	$ 338
Disposal of partial interest to non-controlling interest, net of taxes.							168	165	0
Disposal of investments in associates and joint ventures							0	135	1,289
Investments accounted for using equity method							$ 5,528	4,967	$ 4,591
Australia District Energy Business
Disclosure Of Associates And Joint Ventures [Line Items]
Gain on sale of associate						$ 62
Net losses relating to foreign currency translation and net investment hedges reclassified						35		$ (12)
Partnership's share of accumulated revaluation surplus						12
Disposal of investments in associates and joint ventures						277
Investments accounted for using equity method						215
Transaction related costs						$ 5
Chilean toll roads
Disclosure Of Associates And Joint Ventures [Line Items]
Disposal of ownership interest, percentage							33.00%	33.00%
Gain on sale of associate					$ 354
Net losses relating to foreign currency translation and net investment hedges reclassified					38		$ (44)	$ (38)
Disposal of investments in associates and joint ventures					$ 365
Ownership and voting Interest					17.00%
Dividends received					$ 200
Partnership's share of proceeds from sales of investments accounted for using equity method					$ 165
Australian export terminal
Disclosure Of Associates And Joint Ventures [Line Items]
Disposal of ownership interest, percentage	22.00%
Proceeds from disposition of subsidiary	$ 55
Gain on sale of associate	$ 400
Proportion of ownership interest in subsidiary	49.00%						0.00%	71.00%
Net losses relating to foreign currency translation and net investment hedges reclassified	$ 35
Australian export terminal | Consortium
Disclosure Of Associates And Joint Ventures [Line Items]
Proceeds from disposition of subsidiary	265
Gain on sale of associate	575
Net losses relating to foreign currency translation and net investment hedges reclassified	$ 70
North American Rail Operation, Australian Operations
Disclosure Of Associates And Joint Ventures [Line Items]
Disposal of ownership interest, percentage		51.00%
Proceeds from disposition of subsidiary		$ 40
Deferred consideration		195
North American Rail Operation, Australian Operations | Consortium
Disclosure Of Associates And Joint Ventures [Line Items]
Proceeds from disposition of subsidiary		$ 420
Chinese Toll Roads
Disclosure Of Associates And Joint Ventures [Line Items]
Disposal of ownership interest, percentage			33.00%
Gain on sale of associate			$ 140
Disposal of partial interest to non-controlling interest, net of taxes.			170
Reclassification adjustments on cash flow hedges, net of tax			$ 44
Columbian Regulated Distribution Operation
Disclosure Of Associates And Joint Ventures [Line Items]
Disposal of ownership interest, percentage				17.00%
Proceeds from disposition of subsidiary				$ 88
Gain on sale of associate				36
Net losses relating to foreign currency translation and net investment hedges reclassified				44
Partnership's share of accumulated revaluation surplus				61
Columbian Regulated Distribution Operation | Consortium
Disclosure Of Associates And Joint Ventures [Line Items]
Proceeds from disposition of subsidiary				495
Gain on sale of associate				$ 197

ACQUISITION OF BUSINESSES - Add

ACQUISITION OF BUSINESSES - Additional Information (Details) - USD ($)	Aug. 31, 2020	Jul. 15, 2020	Dec. 31, 2019	Dec. 31, 2019	Dec. 30, 2019	Dec. 19, 2019	Mar. 22, 2019	Jan. 04, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2020
Disclosure of detailed information about business combination [line items]
Revenues									$ 8,885,000,000	$ 6,597,000,000	$ 4,652,000,000
Net income (loss)									904,000,000	650,000,000	$ 806,000,000
Percentage of voting interest in company												75.00%
Deferred tax liability									(179,000,000)	1,024,000,000
Indian telecom towers operation
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary	17.00%
Consideration transferred	$ 584,000,000
Acquisition costs recorded	15,000,000
Revenues									360,000,000
Net income (loss)									8,000,000
Cash	584,000,000
Pro forma revenue									9,600,000,000
Pro forma net income									$ 900,000,000
Indian telecom towers operation | Consortium
Disclosure of detailed information about business combination [line items]
Consideration transferred	$ 3,400,000,000
Columbian Regulated Distribution Operation
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary		6.00%
Consideration transferred		$ 45,000,000
Percentage of voting interest in company		21.00%
Equity funded consideration		$ 25,000,000
Loss recognized as a result of partial acquisition		$ 10,000,000
Columbian Regulated Distribution Operation | Consortium
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary		20.00%
Consideration transferred		$ 150,000,000
Equity funded consideration		$ 90,000,000
Western Canadian natural gas midstream business
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary			29.00%
Consideration transferred			$ 377,000,000	$ 377,000,000						377,000,000
Acquisition costs recorded										8,000,000
Equity funded consideration			246,000,000	246,000,000						246,000,000
Cash			377,000,000	377,000,000						377,000,000
Western Canadian natural gas midstream business | Consortium
Disclosure of detailed information about business combination [line items]
Consideration transferred			1,300,000,000	1,300,000,000						1,300,000,000
Equity funded consideration			$ 861,000,000	861,000,000						861,000,000
North American Rail Business
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary					9.00%
Consideration transferred					$ 602,000,000
Acquisition costs recorded										38,000,000
Equity funded consideration					502,000,000
Goodwill expected to be deductible for tax purposes					0
Cash					602,000,000
North American Rail Business | Consortium
Disclosure of detailed information about business combination [line items]
Consideration transferred					6,500,000,000
Equity funded consideration					$ 5,400,000,000
U.K. Telecommunications
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary						25.00%
Consideration transferred						$ 141,000,000
Acquisition costs recorded										6,000,000
Cash						73,000,000
Deferred consideration						$ 68,000,000
Period of payable from close of transaction						2 years
Deferred tax liability				$ 25,000,000
U.K. Telecommunications | Consortium
Disclosure of detailed information about business combination [line items]
Consideration transferred						$ 564,000,000
Cash						293,000,000
Deferred consideration						$ 270,000,000
Indian gas transmission operation
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary							24.00%
Consideration transferred							$ 443,000,000
Acquisition costs recorded										3,000,000
Equity funded consideration							226,000,000
Cash							443,000,000
Asset level debt raised							217,000,000
Indian gas transmission operation | Consortium
Disclosure of detailed information about business combination [line items]
Consideration transferred							1,879,000,000
Equity funded consideration							959,000,000
Asset level debt raised							$ 920,000,000
Australian data center operation
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary								29.00%
Consideration transferred								$ 78,000,000
Acquisition costs recorded										$ 11,000,000
Equity funded consideration								48,000,000
Goodwill expected to be deductible for tax purposes								0
Cash								78,000,000
Australian data center operation | Consortium
Disclosure of detailed information about business combination [line items]
Consideration transferred								272,000,000
Equity funded consideration								$ 166,000,000

ACQUISITION OF BUSINESSES - Pur

ACQUISITION OF BUSINESSES - Purchase Price Allocation (Details) - USD ($) $ in Millions	Dec. 31, 2020	Aug. 31, 2020	Dec. 31, 2019	Dec. 30, 2019	Dec. 19, 2019	Mar. 22, 2019	Jan. 04, 2019
Fair value of assets and liabilities acquired
Assets classified as held for sale	$ 0		$ 2,380
Goodwill	$ 6,634		6,553
Indian telecom towers operation
Consideration transferred
Cash		$ 584
Total consideration		584
Fair value of assets and liabilities acquired
Accounts receivable and other		408
Property, plant and equipment		7,334
Intangible assets		532
Goodwill		27
Accounts payable and other liabilities		(417)
Non-recourse borrowings		(2,356)
Lease liabilities		(2,101)
Deferred income tax liabilities		(22)
Net assets acquired before non-controlling interest		3,405
Non-controlling interest		(2,821)
Net assets acquired		$ 584
Western Canadian natural gas midstream business
Consideration transferred
Cash			377
Total consideration			377
Fair value of assets and liabilities acquired
Accounts receivable and other			5
Property, plant and equipment			1,198
Intangible assets			74
Goodwill			218
Deferred income tax assets			41
Accounts payable and other liabilities			(218)
Net assets acquired before non-controlling interest			1,318
Non-controlling interest			(941)
Net assets acquired			377
North American Rail Business
Consideration transferred
Cash				$ 602
Total consideration				602
Fair value of assets and liabilities acquired
Cash and cash equivalents				67
Accounts receivable and other				509
Assets classified as held for sale				1,584
Property, plant and equipment				5,283
Intangible assets				1,992
Investment in associate				48
Goodwill				2,042
Accounts payable and other liabilities				(612)
Non-recourse borrowings				(1,567)
Liabilities directly associated with assets classified as held for sale				(893)
Other liabilities				(566)
Deferred income tax liabilities				(1,111)
Net assets acquired before non-controlling interest				6,776
Non-controlling interest				(6,174)
Net assets acquired				$ 602
U.K. Telecommunications
Consideration transferred
Cash					$ 73
Deferred consideration					68
Total consideration					141
Fair value of assets and liabilities acquired
Cash and cash equivalents					9
Accounts receivable and other					18
Property, plant and equipment					95
Intangible assets					465
Goodwill					301
Accounts payable and other liabilities					(53)
Non-recourse borrowings					(195)
Deferred income tax liabilities					(76)
Net assets acquired before non-controlling interest					564
Non-controlling interest					(423)
Net assets acquired					$ 141
Indian gas transmission operation
Consideration transferred
Cash						$ 443
Total consideration						443
Fair value of assets and liabilities acquired
Accounts receivable and other						94
Property, plant and equipment						2,134
Intangible assets						295
Accounts payable and other liabilities						(66)
Net assets acquired before non-controlling interest						2,457
Non-controlling interest						(2,014)
Net assets acquired						$ 443
Australian data center operation
Consideration transferred
Cash							$ 78
Total consideration							78
Fair value of assets and liabilities acquired
Accounts receivable and other							2
Investment properties							211
Goodwill							68
Accounts payable and other liabilities							(9)
Net assets acquired before non-controlling interest							272
Non-controlling interest							(194)
Net assets acquired							$ 78
Individually insignificant business combinations
Consideration transferred
Cash			24
Pre-existing interest in business			30
Total consideration			54
Fair value of assets and liabilities acquired
Cash and cash equivalents			16
Accounts receivable and other			6
Intangible assets			422
Goodwill			15
Accounts payable and other liabilities			(21)
Non-recourse borrowings			(210)
Deferred income tax liabilities			(55)
Net assets acquired before non-controlling interest			173
Non-controlling interest			(119)
Net assets acquired			$ 54

FAIR VALUE OF FINANCIAL INSTR_3

FAIR VALUE OF FINANCIAL INSTRUMENTS - Allocation of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of financial assets [line items]
Financial assets	$ 4,305	$ 3,931
Disclosure of financial liabilities [line items]
Financial liabilities	33,120	26,888
Fair value through profit or loss
Disclosure of financial liabilities [line items]
Financial liabilities	931	490
Fair value through OCI
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Amortized Cost
Disclosure of financial liabilities [line items]
Financial liabilities	32,189	26,398
Fair value through profit or loss
Disclosure of financial assets [line items]
Financial assets	846	962
Fair value through OCI
Disclosure of financial assets [line items]
Financial assets	239	89
Amortized Cost
Disclosure of financial assets [line items]
Financial assets	3,220	2,880
Corporate borrowings
Disclosure of financial liabilities [line items]
Financial liabilities	3,158	2,475
Corporate borrowings | Fair value through profit or loss
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Corporate borrowings | Fair value through OCI
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Corporate borrowings | Amortized Cost
Disclosure of financial liabilities [line items]
Financial liabilities	3,158	2,475
Non-recourse borrowings (current and non-current)
Disclosure of financial liabilities [line items]
Financial liabilities	20,020	18,544
Non-recourse borrowings (current and non-current) | Fair value through profit or loss
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Non-recourse borrowings (current and non-current) | Fair value through OCI
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Non-recourse borrowings (current and non-current) | Amortized Cost
Disclosure of financial liabilities [line items]
Financial liabilities	20,020	18,544
Accounts payable and other
Disclosure of financial liabilities [line items]
Financial liabilities	6,548	3,676
Accounts payable and other | Fair value through profit or loss
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Accounts payable and other | Fair value through OCI
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Accounts payable and other | Amortized Cost
Disclosure of financial liabilities [line items]
Financial liabilities	6,548	3,676
Financial Liabilities
Disclosure of financial liabilities [line items]
Financial liabilities	3,374	2,173
Financial Liabilities | Fair value through profit or loss
Disclosure of financial liabilities [line items]
Financial liabilities	931	490
Financial Liabilities | Fair value through OCI
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Financial Liabilities | Amortized Cost
Disclosure of financial liabilities [line items]
Financial liabilities	2,443	1,683
Preferred shares
Disclosure of financial liabilities [line items]
Financial liabilities	20	20
Preferred shares | Fair value through profit or loss
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Preferred shares | Fair value through OCI
Disclosure of financial liabilities [line items]
Financial liabilities	0	0
Preferred shares | Amortized Cost
Disclosure of financial liabilities [line items]
Financial liabilities	20	20
Cash and cash equivalents
Disclosure of financial assets [line items]
Financial assets	867	827
Cash and cash equivalents | Fair value through profit or loss
Disclosure of financial assets [line items]
Financial assets	0	0
Cash and cash equivalents | Fair value through OCI
Disclosure of financial assets [line items]
Financial assets	0	0
Cash and cash equivalents | Amortized Cost
Disclosure of financial assets [line items]
Financial assets	867	827
Accounts receivable and other
Disclosure of financial assets [line items]
Financial assets	2,031	1,909
Accounts receivable and other | Fair value through profit or loss
Disclosure of financial assets [line items]
Financial assets	0	0
Accounts receivable and other | Fair value through OCI
Disclosure of financial assets [line items]
Financial assets	0	0
Accounts receivable and other | Amortized Cost
Disclosure of financial assets [line items]
Financial assets	2,031	1,909
Financial assets (current and non-current)
Disclosure of financial assets [line items]
Financial assets	881	1,053
Financial assets (current and non-current) | Fair value through profit or loss
Disclosure of financial assets [line items]
Financial assets	523	893
Financial assets (current and non-current) | Fair value through OCI
Disclosure of financial assets [line items]
Financial assets	36	16
Financial assets (current and non-current) | Amortized Cost
Disclosure of financial assets [line items]
Financial assets	322	144
Marketable securities
Disclosure of financial assets [line items]
Financial assets	526	142
Marketable securities | Fair value through profit or loss
Disclosure of financial assets [line items]
Financial assets	323	69
Marketable securities | Fair value through OCI
Disclosure of financial assets [line items]
Financial assets	203	73
Marketable securities | Amortized Cost
Disclosure of financial assets [line items]
Financial assets	$ 0	$ 0

FAIR VALUE OF FINANCIAL INSTR_4

FAIR VALUE OF FINANCIAL INSTRUMENTS FAIR VALUE OF FINANCIAL INSTRUMENTS - Allocation of Financial Instruments - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Preferred shares	$ 20	$ 20
Financial assets (current and non-current)
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial instruments designated as hedging instruments, at fair value	373	694
Financial Liabilities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial instruments designated as hedging instruments, at fair value	$ 572	$ 285

FAIR VALUE OF FINANCIAL INSTR_5

FAIR VALUE OF FINANCIAL INSTRUMENTS - Carrying and Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of financial assets [line items]
Financial assets, Carrying Value	$ 4,305	$ 3,931
Financial assets, Fair Value	4,305	3,931
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying Value	33,120	26,888
Financial liabilities, Fair Value	33,620	27,267
Preferred shares	20	20
Corporate borrowings
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying Value	3,158	2,475
Financial liabilities, Fair Value	3,350	2,507
Non-recourse borrowings
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying Value	20,020	18,544
Financial liabilities, Fair Value	20,328	18,891
Accounts payable and other
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying Value	6,548	3,676
Financial liabilities, Fair Value	6,548	3,676
Preferred shares
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying Value	20	20
Financial liabilities, Fair Value	20	20
Financial Liabilities
Disclosure of financial liabilities [line items]
Financial liabilities, Carrying Value	3,374	2,173
Financial liabilities, Fair Value	3,374	2,173
Cash and cash equivalents
Disclosure of financial assets [line items]
Financial assets, Carrying Value	867	827
Financial assets, Fair Value	867	827
Accounts receivable and other
Disclosure of financial assets [line items]
Financial assets, Carrying Value	2,031	1,909
Financial assets, Fair Value	2,031	1,909
Financial assets (current and non-current)
Disclosure of financial assets [line items]
Financial assets, Carrying Value	881	1,053
Financial assets, Fair Value	881	1,053
Marketable securities
Disclosure of financial assets [line items]
Financial assets, Carrying Value	526	142
Financial assets, Fair Value	$ 526	$ 142

FAIR VALUE OF FINANCIAL INSTR_6

FAIR VALUE OF FINANCIAL INSTRUMENTS - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	$ 3,374	$ 2,173
Recurring fair value measurement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	1,085	1,051
Financial liabilities	931	490
Cash flow hedges | Financial assets at fair value through other comprehensive income, category
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Gains (losses) on hedging instrument, fair value hedges	(104)	(33)	$ (71)
Derivative financial liabilities	150
Derivative financial assets		363
Net investment hedges | Financial assets at fair value through other comprehensive income, category
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Gains (losses) on hedging instrument, fair value hedges	(12)	(113)	97
Derivative financial liabilities	49
Derivative financial assets		46
Settlements, fair value measurement, assets	$ 83
Settlements, fair value measurement, liabilities		$ 62	$ 53

FAIR VALUE OF FINANCIAL INSTR_7

FAIR VALUE OF FINANCIAL INSTRUMENTS - Valuation Techniques and Significant Inputs (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	$ 3,374	$ 2,173
Recurring fair value measurement
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	1,085	1,051
Financial liabilities	931	490
Recurring fair value measurement | Foreign currency forward contracts | Level 2 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	251	97
Recurring fair value measurement | Interest rate swaps & other | Level 2 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	561	311
Recurring fair value measurement | Other contracts | Level 3 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	119	82
Recurring fair value measurement | Marketable securities | Level 1 | Quoted bid prices
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	526	142
Recurring fair value measurement | Foreign currency forward contracts | Level 2 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	115	140
Recurring fair value measurement | Interest rate swaps & other | Level 2 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	438	765
Recurring fair value measurement | Other contracts | Level 3 | Discounted cash flow
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	$ 6	$ 4

CASH AND CASH EQUIVALENTS (Deta

CASH AND CASH EQUIVALENTS (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash and cash equivalents [abstract]
Cash	$ 520	$ 467
Cash equivalents	222	232
Restricted cash	125	128
Total cash and cash equivalents	$ 867	$ 827	$ 540	$ 374

FINANCIAL ASSETS (Details)

FINANCIAL ASSETS (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current:
Marketable securities	$ 563	$ 142
Foreign currency forward contracts	34	112
Cross currency interest rate swaps	22	92
Loans and receivables	68	61
Other	11	25
Total current	698	432
Non-current:
Marketable securities	97	71
Foreign currency forward contracts	81	29
Cross currency interest rate swaps	262	542
Loans and receivables	259	85
Other	10	36
Total non-current	$ 709	$ 763

ACCOUNTS RECEIVABLE AND OTHER_2

ACCOUNTS RECEIVABLE AND OTHER (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current:
Accounts receivable	$ 1,463	$ 1,741
Prepayments & other assets	462	219
Total current	1,925	1,960
Non-current:
Finance lease receivables	343	0
Accounts receivable	123	100
Restricted cash(1)	81	41
Tax recovery receivables	21	27
Other assets	188	89
Total non-current	$ 756	$ 257

ACCOUNTS RECEIVABLE AND OTHER -

ACCOUNTS RECEIVABLE AND OTHER - Undiscounted Lease Payments (Details) $ in Millions	Dec. 31, 2020USD ($)
Disclosure Of Maturity Analysis Of Operating And Finance Lease Payments [Line Items]
Finance lease receivable	$ 858
Operating lease receivable	3,138
Total lease receivable	3,996
Less than 1 year
Disclosure Of Maturity Analysis Of Operating And Finance Lease Payments [Line Items]
Finance lease receivable	62
Operating lease receivable	396
Total lease receivable	458
1-2 years
Disclosure Of Maturity Analysis Of Operating And Finance Lease Payments [Line Items]
Finance lease receivable	61
Operating lease receivable	384
Total lease receivable	445
2-3 years
Disclosure Of Maturity Analysis Of Operating And Finance Lease Payments [Line Items]
Finance lease receivable	61
Operating lease receivable	318
Total lease receivable	379
3-4 years
Disclosure Of Maturity Analysis Of Operating And Finance Lease Payments [Line Items]
Finance lease receivable	60
Operating lease receivable	295
Total lease receivable	355
4-5 years
Disclosure Of Maturity Analysis Of Operating And Finance Lease Payments [Line Items]
Finance lease receivable	59
Operating lease receivable	271
Total lease receivable	330
5 plus years
Disclosure Of Maturity Analysis Of Operating And Finance Lease Payments [Line Items]
Finance lease receivable	555
Operating lease receivable	1,474
Total lease receivable	$ 2,029

INVENTORY (Details)

INVENTORY (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Inventories [Abstract]
Natural gas inventory	$ 71,000,000	$ 127,000,000
Raw materials and other	150,000,000	115,000,000
Carrying amount of inventories	221,000,000	242,000,000
Cost of inventories recognised as expense during period	686,000,000	626,000,000	$ 502,000,000
Inventory impairment	$ 3,000,000	$ 3,000,000	$ 0

INVESTMENT IN ASSOCIATES AND _3

INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Additional Information (Details) site in Thousands

Dec. 07, 2020USD ($)

Oct. 21, 2019

Oct. 21, 2019USD ($)

Oct. 07, 2019

Sep. 30, 2020USD ($)

Jul. 31, 2020USD ($)

Jul. 31, 2019USD ($)

Jun. 30, 2019USD ($)

Mar. 31, 2019USD ($)

Dec. 31, 2020USD ($)businesssitekm

Dec. 31, 2019USD ($)

Dec. 31, 2018USD ($)

Disclosure Of Associates And Joint Ventures [Line Items]

Disposal of investments in associates and joint ventures

$ 0

$ 135,000,000

$ 1,289,000,000

Change in basis of accounting

466,000,000

0

Acquisitions

369,000,000

587,000,000

Associates and joint ventures with quoted prices in an active market

$ 2

$ 0

Australian export terminal

Disclosure Of Associates And Joint Ventures [Line Items]

Disposal of ownership interest, percentage

22.00%

Proportion of ownership interest in subsidiary

49.00%

0.00%

71.00%

Change in basis of accounting

$ 466,000,000

Brazilian electricity transmission operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

15.00%

Mexico regulated gas transmission operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

13.00%

Mexico Regulated Gas Transmission Operation 2

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

11.00%

Regulated Natural Gas Transmission Business In Mexico

Disclosure Of Associates And Joint Ventures [Line Items]

Number of businesses | business

2

Colombian natural gas distribution operation

Disclosure Of Associates And Joint Ventures [Line Items]

Number of associates and joint ventures

4

Brazilian toll roads

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

45.00%

Brazilian Rail Business

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

11.00%

North American west coast container terminal

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

19.00%

Australian port operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

13.00%

Australian Ports Operation 2

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

26.00%

Australian Ports Operation 3

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

49.00%

U.S. LNG export terminal

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

6.00%

Ownership interest

6.00%

Acquisitions

$ 369,000,000

North American natural gas transmission operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

50.00%

Loans and receivables

$ 500,000,000

North American gas storage operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

20.00%

European telecommunications infrastructure operations

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

21.00%

Number of towers and rooftop sites | site

7

Kilometers of fiber backbone | km

5,500

Australian Data Center Operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

12.00%

New Zealand Data Center Operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership and voting Interest

13.00%

European port operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership interest

40.00%

Disposal of investments in associates and joint ventures

$ 135,000,000

Texas electricity transmission project

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership interest

11.00%

Disposal of investments in associates and joint ventures

$ 60,000,000

Gain on sale of investment

$ 20,000,000

Disposal of ownership interest, percentage

11.00%

Brazilian Data Center Operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership interest

12.00%

Acquisitions

$ 190,000,000

Proportion of voting rights held in associate

50.00%

Australian Data Transmission and Distribution Operation

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership interest

12.00%

Acquisitions

$ 170,000,000

Proportion of voting rights held in associate

50.00%

Ramones II Norte

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership interest

13.00%

Proportion of voting rights held in associate

50.00%

Ramones II Sur

Disclosure Of Associates And Joint Ventures [Line Items]

Ownership interest

11.00%

Proportion of voting rights held in associate

45.00%

Los Ramones

Disclosure Of Associates And Joint Ventures [Line Items]

Acquisitions

$ 140,000,000

Sabine Pass

Disclosure Of Associates And Joint Ventures [Line Items]

Proportion of voting rights held in associate

41.00%

INVESTMENT IN ASSOCIATES AND _4

INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Change in Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of changes in associates and joint ventures
Balance at beginning of year	$ 4,967	$ 4,591
Share of earnings for the year	131	224	$ (13)
Foreign currency translation and other	(245)	(62)
Share of other comprehensive income	7	54
Distributions	(167)	(254)
Disposition of interest	0	(135)
Held for sale	0	(38)
Change in basis of accounting	466	0
Acquisitions	369	587
Balance at end of year	$ 5,528	$ 4,967	$ 4,591

INVESTMENT IN ASSOCIATES AND _5

INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Balance Sheet Impact of Investments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	$ 3,711	$ 5,841
Non-Current Assets	57,620	50,467
Total assets	61,331	56,308
Current Liabilities	5,524	5,439
Non-Current Liabilities	34,134	28,692
Total liabilities	39,658	34,131
Total
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	2,948	3,189
Non-Current Assets	51,725	42,291
Total assets	54,673	45,480
Current Liabilities	3,972	3,964
Non-Current Liabilities	24,244	21,573
Total liabilities	28,216	25,537
Total Net Assets	26,457	19,943
Attributable to Other Ownership Interests	20,929	14,976
Attributable to Partnership's Share	5,528	4,967
Utilities
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	646	870
Non-Current Assets	6,142	6,499
Total assets	6,788	7,369
Current Liabilities	487	686
Non-Current Liabilities	4,238	4,152
Total liabilities	4,725	4,838
Total Net Assets	2,063	2,531
Attributable to Other Ownership Interests	1,810	2,286
Attributable to Partnership's Share	253	245
Transport
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	1,266	1,233
Non-Current Assets	25,762	18,327
Total assets	27,028	19,560
Current Liabilities	1,959	1,948
Non-Current Liabilities	9,836	8,444
Total liabilities	11,795	10,392
Total Net Assets	15,233	9,168
Attributable to Other Ownership Interests	12,474	6,770
Attributable to Partnership's Share	2,759	2,398
Midstream
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	173	166
Non-Current Assets	6,392	5,696
Total assets	6,565	5,862
Current Liabilities	249	275
Non-Current Liabilities	4,033	4,013
Total liabilities	4,282	4,288
Total Net Assets	2,283	1,574
Attributable to Other Ownership Interests	911	307
Attributable to Partnership's Share	1,372	1,267
Data
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	841	912
Non-Current Assets	13,308	11,636
Total assets	14,149	12,548
Current Liabilities	1,263	1,042
Non-Current Liabilities	6,081	4,908
Total liabilities	7,344	5,950
Total Net Assets	6,805	6,598
Attributable to Other Ownership Interests	5,672	5,569
Attributable to Partnership's Share	1,133	1,029
Corporate
Disclosure Of Associates And Joint Ventures [Line Items]
Current Assets	22	8
Non-Current Assets	121	133
Total assets	143	141
Current Liabilities	14	13
Non-Current Liabilities	56	56
Total liabilities	70	69
Total Net Assets	73	72
Attributable to Other Ownership Interests	62	44
Attributable to Partnership's Share	$ 11	$ 28
North American natural gas transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	50.00%
Loans and receivables	$ 500
Bottom of range | Utilities
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	11.00%	11.00%
Bottom of range | Transport
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	6.00%	11.00%
Bottom of range | Midstream
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	20.00%	20.00%
Bottom of range | Data
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	12.00%	12.00%
Bottom of range | Corporate
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	25.00%	25.00%
Top of range | Utilities
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	20.00%	20.00%
Top of range | Transport
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	50.00%	50.00%
Top of range | Midstream
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	50.00%	50.00%
Top of range | Data
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	21.00%	21.00%
Top of range | Corporate
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest	50.00%	50.00%

INVESTMENT IN ASSOCIATES AND _6

INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Income Statement Impact of Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	$ 8,885	$ 6,597	$ 4,652
Net income	904	650	806
OCI	(62)	590	(945)
Comprehensive income (loss)	842	1,240	(139)
Total
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	8,897	6,595	5,872
Net income	1,049	651	41
OCI	(1,495)	237	(138)
Comprehensive income (loss)	(446)	888	(97)
Net Income Attributable to the Partnership	131	224	(102)
Utilities
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	1,715	1,046	541
Net income	364	354	92
OCI	(205)	26	110
Comprehensive income (loss)	159	380	202
Net Income Attributable to the Partnership	50	57	56
Transport
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	4,161	3,351	3,747
Net income	171	22	(74)
OCI	(1,419)	364	(856)
Comprehensive income (loss)	(1,248)	386	(930)
Net Income Attributable to the Partnership	(101)	2	(333)
Midstream
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	767	734	739
Net income	236	351	91
OCI	0	(54)	8
Comprehensive income (loss)	236	297	99
Net Income Attributable to the Partnership	136	184	46
Data
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	2,245	1,447	804
Net income	293	(38)	64
OCI	374	57	244
Comprehensive income (loss)	667	19	308
Net Income Attributable to the Partnership	45	(9)	74
Corporate
Disclosure Of Associates And Joint Ventures [Line Items]
Revenues	9	17	41
Net income	(15)	(38)	(132)
OCI	(245)	(156)	356
Comprehensive income (loss)	(260)	(194)	224
Net Income Attributable to the Partnership	$ 1	$ (10)	$ 55

INVESTMENT IN ASSOCIATES AND _7

INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Cash Flows Impact of Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	$ 2,530	$ 2,143	$ 1,362
Cash used by investing activities	(4,609)	(11,372)	(5,564)
Cash from financing activities	2,126	9,542	4,418
Change during the year	47	313	216
Total
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	2,603	1,688	1,806
Cash used by investing activities	(2,785)	(4,935)	4,571
Cash from financing activities	978	3,665	(6,374)
Change during the year	796	418	3
Other Ownership Interests	681	422	(10)
Partnership's Share	115	(4)	13
Utilities
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	184	108	380
Cash used by investing activities	(697)	(1,109)	6,189
Cash from financing activities	285	1,548	(6,716)
Change during the year	(228)	547	(147)
Other Ownership Interests	(199)	471	(106)
Partnership's Share	(29)	76	(41)
Transport
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	1,189	692	776
Cash used by investing activities	(1,039)	(852)	(1,018)
Cash from financing activities	826	11	369
Change during the year	976	(149)	127
Other Ownership Interests	843	(76)	77
Partnership's Share	133	(73)	50
Midstream
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	378	357	320
Cash used by investing activities	(314)	(267)	(288)
Cash from financing activities	(56)	(95)	(46)
Change during the year	8	(5)	(14)
Other Ownership Interests	3	(3)	(10)
Partnership's Share	5	(2)	(4)
Data
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	852	531	323
Cash used by investing activities	(735)	(2,707)	(305)
Cash from financing activities	(77)	2,201	19
Change during the year	40	25	37
Other Ownership Interests	34	30	29
Partnership's Share	6	(5)	8
Corporate
Disclosure Of Associates And Joint Ventures [Line Items]
Cash from operating activities	0	0	7
Cash used by investing activities	0	0	(7)
Cash from financing activities	0	0	0
Change during the year	0	0	0
Other Ownership Interests	0	0	0
Partnership's Share	$ 0	$ 0	$ 0

PROPERTY, PLANT AND EQUIPMENT -

PROPERTY, PLANT AND EQUIPMENT - Net Book Value (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	$ 23,013
Ending balance	31,584	$ 23,013
Utilities
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	9,674
Ending balance	10,610	9,674
Transport
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	8,216
Ending balance	8,341	8,216
Midstream
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	4,080
Ending balance	4,303	4,080
Data
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	1,043
Ending balance	8,330	1,043
Gross Carrying Amount:
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	22,044	11,630
Change in Accounting Policies		1,207
Additions, net of disposals	1,305	1,016
Non-cash (disposals) additions	(281)	(274)
Acquisitions through business combinations	7,334	8,710
Assets reclassified as held for sale		(458)
Net foreign currency exchange differences	498	213
Ending balance	30,900	22,044
Gross Carrying Amount: | Utilities
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	8,633	6,248
Change in Accounting Policies		110
Additions, net of disposals	535	770
Non-cash (disposals) additions	15	(295)
Acquisitions through business combinations	0	2,135
Assets reclassified as held for sale		(455)
Net foreign currency exchange differences	106	120
Ending balance	9,289	8,633
Gross Carrying Amount: | Transport
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	8,309	2,495
Change in Accounting Policies		356
Additions, net of disposals	387	122
Non-cash (disposals) additions	(241)	49
Acquisitions through business combinations	0	5,283
Assets reclassified as held for sale		0
Net foreign currency exchange differences	242	4
Ending balance	8,697	8,309
Gross Carrying Amount: | Midstream
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	3,971	2,443
Change in Accounting Policies		108
Additions, net of disposals	306	116
Non-cash (disposals) additions	(29)	23
Acquisitions through business combinations	0	1,197
Assets reclassified as held for sale		(3)
Net foreign currency exchange differences	73	87
Ending balance	4,321	3,971
Gross Carrying Amount: | Data
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	1,131	444
Change in Accounting Policies		633
Additions, net of disposals	77	8
Non-cash (disposals) additions	(26)	(51)
Acquisitions through business combinations	7,334	95
Assets reclassified as held for sale		0
Net foreign currency exchange differences	77	2
Ending balance	8,593	1,131
Accumulated depreciation:
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(2,417)	(1,849)
Non-cash (disposals) additions	147	26
Assets reclassified as held for sale		194
Net foreign currency exchange differences	(135)	(29)
Depreciation expense	(1,247)	(764)
Disposals	16	5
Ending balance	(3,636)	(2,417)
Accumulated depreciation: | Utilities
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(1,171)	(985)
Non-cash (disposals) additions	0	50
Assets reclassified as held for sale		194
Net foreign currency exchange differences	(35)	(18)
Depreciation expense	(419)	(415)
Disposals	12	3
Ending balance	(1,613)	(1,171)
Accumulated depreciation: | Transport
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(950)	(744)
Non-cash (disposals) additions	130	(27)
Assets reclassified as held for sale		0
Net foreign currency exchange differences	(90)	(3)
Depreciation expense	(498)	(178)
Disposals	4	2
Ending balance	(1,404)	(950)
Accumulated depreciation: | Midstream
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(208)	(120)
Non-cash (disposals) additions	0	3
Assets reclassified as held for sale		0
Net foreign currency exchange differences	(7)	(7)
Depreciation expense	(141)	(84)
Disposals	0	0
Ending balance	(356)	(208)
Accumulated depreciation: | Data
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(88)	0
Non-cash (disposals) additions	17	0
Assets reclassified as held for sale		0
Net foreign currency exchange differences	(3)	(1)
Depreciation expense	(189)	(87)
Disposals	0	0
Ending balance	(263)	(88)
Accumulated fair value adjustments:
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	3,386	3,033
Non-cash (disposals) additions		(12)
Assets reclassified as held for sale		(416)
Net foreign currency exchange differences	148	62
Fair value adjustments	786	719
Ending balance	4,320	3,386
Accumulated fair value adjustments: | Utilities
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	2,212	2,002
Non-cash (disposals) additions		0
Assets reclassified as held for sale		(416)
Net foreign currency exchange differences	70	44
Fair value adjustments	652	582
Ending balance	2,934	2,212
Accumulated fair value adjustments: | Transport
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	857	810
Non-cash (disposals) additions		0
Assets reclassified as held for sale		0
Net foreign currency exchange differences	78	2
Fair value adjustments	113	45
Ending balance	1,048	857
Accumulated fair value adjustments: | Midstream
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	317	221
Non-cash (disposals) additions		(12)
Assets reclassified as held for sale		0
Net foreign currency exchange differences	0	16
Fair value adjustments	21	92
Ending balance	338	317
Accumulated fair value adjustments: | Data
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	0	0
Non-cash (disposals) additions		0
Assets reclassified as held for sale		0
Net foreign currency exchange differences	0	0
Fair value adjustments	0	0
Ending balance	$ 0	$ 0

PROPERTY, PLANT AND EQUIPMENT_2

PROPERTY, PLANT AND EQUIPMENT - Valuation Technique (Details) - Property, plant and equipment - Recurring fair value measurement - Discounted cash flow model	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Utilities | Bottom of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Terminal Value Multiple	7	8
Investment Horizon	10 years	10 years
Utilities | Top of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Terminal Value Multiple	23	21
Investment Horizon		20 years
Transport | Bottom of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Terminal Value Multiple	9	9
Investment Horizon	10 years	10 years
Transport | Top of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Terminal Value Multiple	14	14
Investment Horizon		20 years
Midstream | Bottom of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Terminal Value Multiple	10	10
Investment Horizon	5 years	5 years
Midstream | Top of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Investment Horizon	10 years	10 years
Interest rate, measurement input | Utilities | Bottom of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Significant unobservable input, assets	0.07	0.07
Interest rate, measurement input | Utilities | Top of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Significant unobservable input, assets	0.14	0.14
Interest rate, measurement input | Transport | Bottom of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Significant unobservable input, assets	0.07	0.07
Interest rate, measurement input | Transport | Top of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Significant unobservable input, assets	0.13	0.13
Interest rate, measurement input | Midstream | Top of range
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Significant unobservable input, assets	0.15	0.15

PROPERTY, PLANT AND EQUIPMENT_3

PROPERTY, PLANT AND EQUIPMENT - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Utilities
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets	$ 159	$ 156
Transport
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets	1,187	1,329
Midstream
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets	113	116
Data
Disclosure of detailed information about property, plant and equipment [line items]
Right-of-use assets	2,643	560
Accumulated fair value adjustments:
Disclosure of detailed information about property, plant and equipment [line items]
Gain from revaluation	786	719
Accumulated fair value adjustments: | Utilities
Disclosure of detailed information about property, plant and equipment [line items]
Gain from revaluation	652	582
Accumulated fair value adjustments: | Transport
Disclosure of detailed information about property, plant and equipment [line items]
Gain from revaluation	113	45
Accumulated fair value adjustments: | Midstream
Disclosure of detailed information about property, plant and equipment [line items]
Gain from revaluation	21	92
Accumulated fair value adjustments: | Data
Disclosure of detailed information about property, plant and equipment [line items]
Gain from revaluation	$ 0	$ 0

PROPERTY, PLANT AND EQUIPMENT P

PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT - Cost Model (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Utilities
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, revalued assets, at cost	$ 8,114	$ 7,776
Transport
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, revalued assets, at cost	7,548	7,574
Midstream
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, revalued assets, at cost	4,007	3,797
Data
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment, revalued assets, at cost	$ 8,330	$ 1,043

INTANGIBLE ASSETS - Net Amounts

INTANGIBLE ASSETS - Net Amounts (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about intangible assets [line items]
Net intangible assets	$ 11,767	$ 14,386
Cost
Disclosure of detailed information about intangible assets [line items]
Net intangible assets	13,233	15,695	$ 12,515
Accumulated amortization
Disclosure of detailed information about intangible assets [line items]
Net intangible assets	$ (1,466)	$ (1,309)	$ (880)

INTANGIBLE ASSETS - Cash Genera

INTANGIBLE ASSETS - Cash Generating Units (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of information for cash-generating units [line items]
Total	$ 11,767	$ 14,386
Brazilian regulated gas transmission operation
Disclosure of information for cash-generating units [line items]
Total	2,903	3,885
North American rail operation
Disclosure of information for cash-generating units [line items]
Total	1,929	1,992
North American residential energy infrastructure operation
Disclosure of information for cash-generating units [line items]
Total	1,748	1,806
Peruvian toll roads
Disclosure of information for cash-generating units [line items]
Total	1,073	1,159
Chilean toll roads
Disclosure of information for cash-generating units [line items]
Total	825	814
Indian toll roads
Disclosure of information for cash-generating units [line items]
Total	714	769
Indian telecom towers operation
Disclosure of information for cash-generating units [line items]
Total	537	0
U.K. telecom towers operation
Disclosure of information for cash-generating units [line items]
Total	491	472
U.K. ports operation
Disclosure of information for cash-generating units [line items]
Total	292	283
Brazilian electricity transmission operation
Disclosure of information for cash-generating units [line items]
Total	270	401
Other
Disclosure of information for cash-generating units [line items]
Total	985	1,047
Australian export terminal
Disclosure of information for cash-generating units [line items]
Total	0	$ 1,758
Simhapuri Expressway Ltd and Rayalseema Expressway Ltd
Disclosure of information for cash-generating units [line items]
Total	641
Indian toll roads
Disclosure of information for cash-generating units [line items]
Total	$ 73

INTANGIBLE ASSETS - Additional

INTANGIBLE ASSETS - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about intangible assets [line items]
Intangible assets	$ 11,767	$ 14,386
Intangible assets with indefinite useful life	876	667
Simhapuri Expressway Ltd and Rayalseema Expressway Ltd
Disclosure of detailed information about intangible assets [line items]
Intangible assets	641
BIF India Holdings Pte Ltd
Disclosure of detailed information about intangible assets [line items]
Intangible assets	73
North American residential energy infrastructure operation
Disclosure of detailed information about intangible assets [line items]
Intangible assets	1,748	1,806
Australian export terminal
Disclosure of detailed information about intangible assets [line items]
Intangible assets	0	1,758
Peruvian toll roads
Disclosure of detailed information about intangible assets [line items]
Intangible assets	$ 1,073	$ 1,159

INTANGIBLE ASSETS - Reconciliat

INTANGIBLE ASSETS - Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of changes in intangible assets other than goodwill
Cost at beginning of the year	$ 14,386
Cost at end of year	11,767	$ 14,386
Cost
Reconciliation of changes in intangible assets other than goodwill
Cost at beginning of the year	15,695	12,515
Additions, net of disposals	102	109
Acquisitions through business combinations	532	3,248
Assets reclassified as held for sale	0	(1)
Non-cash (disposals) additions(2)	(2,118)	15
Foreign currency translation	(978)	(191)
Cost at end of year	$ 13,233	$ 15,695

INTANGIBLE ASSETS - Accumulated

INTANGIBLE ASSETS - Accumulated Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about intangible assets [line items]
Cost at beginning of the year	$ 14,386
Cost at end of year	11,767	$ 14,386
Accumulated amortization
Disclosure of detailed information about intangible assets [line items]
Cost at beginning of the year	(1,309)	(880)
Non-cash disposals	216	0
Disposals	0	12
Amortization	(458)	(450)
Foreign currency translation	85	9
Cost at end of year	$ (1,466)	$ (1,309)

GOODWILL (Details)

GOODWILL (Details) - Goodwill - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of changes in intangible assets and goodwill [abstract]
Balance at beginning of the year	$ 6,553	$ 3,859
Acquisitions through business combinations	27	2,644
Foreign currency translation and other	54	50
Balance at end of the year	$ 6,634	$ 6,553

GOODWILL GOODWILL (Cash Generat

GOODWILL GOODWILL (Cash Generating Units) (Details) - Goodwill - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of information for cash-generating units [line items]
Goodwill	$ 6,634	$ 6,553	$ 3,859
North American rail operation
Disclosure of information for cash-generating units [line items]
Goodwill	2,126	2,042
North American residential energy infrastructure operation
Disclosure of information for cash-generating units [line items]
Goodwill	1,296	1,274
Western Canadian natural gas gathering and processing operation
Disclosure of information for cash-generating units [line items]
Goodwill	756	749
Colombian natural gas distribution operation
Disclosure of information for cash-generating units [line items]
Goodwill	520	542
Brazilian regulated gas transmission operation
Disclosure of information for cash-generating units [line items]
Goodwill	490	632
U.S. data center operation
Disclosure of information for cash-generating units [line items]
Goodwill	487	486
Other
Disclosure of information for cash-generating units [line items]
Goodwill	$ 959	$ 828

GOODWILL GOODWILL (Narrative) (

GOODWILL GOODWILL (Narrative) (Details)	12 Months Ended
	Dec. 31, 2020
Bottom of range
Disclosure of information for cash-generating units [line items]
Discount rate applied to cash flow projections	11.00%
Terminal rate applied to cash flow projections	900.00%
Period over which management has projected cash flows	7 years
Top of range
Disclosure of information for cash-generating units [line items]
Discount rate applied to cash flow projections	14.00%
Terminal rate applied to cash flow projections	1200.00%
Period over which management has projected cash flows	21 years

INVESTMENT PROPERTIES (Details)

INVESTMENT PROPERTIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of changes in investment property [abstract]
Balance at beginning of the year	$ 416	$ 190
Acquisitions through business combinations	0	211
Additions, net of disposals	3	2
Non-cash additions	0	5
Fair value adjustments	68	0
Foreign currency translation	31	8
Balance at end of the year	$ 518	$ 416
Investment property completed | Transport | Bottom of range | Direct Income Capitalization
Reconciliation of changes in investment property [abstract]
Capitalization rate	6.00%
Capitalization rate	6.00%
Investment property completed | Transport | Top of range | Direct Income Capitalization
Reconciliation of changes in investment property [abstract]
Capitalization rate	14.00%
Capitalization rate	14.00%
Investment property completed | Data | Bottom of range | Direct Income Capitalization
Reconciliation of changes in investment property [abstract]
Capitalization rate	6.00%
Capitalization rate	6.00%
Investment property completed | Data | Top of range | Direct Income Capitalization
Reconciliation of changes in investment property [abstract]
Capitalization rate	8.00%
Capitalization rate	8.00%

ACCOUNTS PAYABLE AND OTHER (Det

ACCOUNTS PAYABLE AND OTHER (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current:
Accounts payable	$ 1,461	$ 973
Accrued liabilities	751	653
Deferred revenue	256	307
Lease liabilities	206	197
Provisions	176	214
Loans and notes payable	134	0
Other liabilities	293	66
Total current	3,277	2,410
Non-current:
Lease liabilities	3,597	1,606
Deferred revenue	467	246
Provisions	423	327
Pension liabilities	315	148
Loans and notes payable	84	99
Other liabilities	311	144
Total non-current	$ 5,197	$ 2,570

FINANCIAL LIABILITIES (Details)

FINANCIAL LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current:
Deferred consideration	$ 136	$ 131
Interest rate swaps	116	0
Foreign currency forward contracts	107	61
Other financial liabilities	337	137
Total current financial liabilities	696	329
Non-current:
Deferred consideration	1,022	1,115
Interest rate swaps	341	113
Foreign currency forward contracts	138	36
Inflation swaps	46	71
Other financial liabilities	1,131	509
Total non-current financial liabilities	$ 2,678	$ 1,844
Deferred consideration, annual interest accrual	3.35%

BORROWINGS - Additional Informa

BORROWINGS - Additional Information (Details) $ in Millions	Sep. 01, 2020CAD ($)	Nov. 06, 2019CAD ($)	Oct. 30, 2018CAD ($)	Dec. 31, 2020USD ($)	Feb. 24, 2021USD ($)	Dec. 31, 2020CAD ($)	Apr. 14, 2020USD ($)	Apr. 07, 2020CAD ($)	Dec. 31, 2019USD ($)	Oct. 07, 2019CAD ($)	Sep. 10, 2018CAD ($)
Disclosure of detailed information about borrowings [line items]
Notional Amount (U.S. Dollars)				$ 14,743,000,000					$ 15,855,000,000
Indian telecom towers operation
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings				3,500,000,000
Corporate revolving credit facility
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity				$ 1,975,000,000
Basis points				0.0013		0.0013
Non-recourse borrowings				$ 1,131,000,000					820,000,000
Letter of credit outstanding amount				63,000,000					54,000,000
Increase (decrease) in corporate borrowings				$ 311,000,000
Corporate revolving credit facility | Floating interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis				1.20%		1.20%
Commercial Paper Program | Establishment of Commercial Paper Program
Disclosure of detailed information about borrowings [line items]
Commercial papers issued					$ 500,000,000
Syndicated Revolving Credit Facility
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity				$ 1,000,000,000			$ 1,000,000,000
Syndicated Revolving Credit Facility | Bottom of range
Disclosure of detailed information about borrowings [line items]
Basis points							0.0042
Syndicated Revolving Credit Facility | Top of range
Disclosure of detailed information about borrowings [line items]
Basis points							0.0044
Syndicated Revolving Credit Facility | Floating interest rate | Bottom of range
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis							2.10%
Syndicated Revolving Credit Facility | Floating interest rate | Top of range
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis							2.20%
Medium-term Notes, Maturing October 9, 2029
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings				$ 550,000,000					386,000,000
Notional Amount (U.S. Dollars)								$ 200		$ 500
Borrowings, interest rate								3.40%		3.50%
Borrowings, effective interest rate								4.10%
Medium-term Notes, Maturing October 9, 2029 | Debt Issuers
Disclosure of detailed information about borrowings [line items]
Amount repaid		$ 375
Medium-term Notes, Maturing October 9, 2029 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate				3.40%		3.40%
Medium-term Notes, Maturing October 9, 2029 | Fixed interest rate | Debt Issuers | CAD
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate								3.40%		3.40%
Medium Term Notes, Maturing October 30, 2018 | Debt Issuers
Disclosure of detailed information about borrowings [line items]
Amount repaid			$ 125
Medium Term Notes
Disclosure of detailed information about borrowings [line items]
Notional Amount (U.S. Dollars)						$ 900		$ 400
Medium-term Notes, Maturing September 11, 2028
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings				$ 550,000,000					384,000,000
Notional Amount (U.S. Dollars)								$ 200			$ 500
Borrowings, effective interest rate								4.10%
Medium-term Notes, Maturing September 11, 2028 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate				4.20%		4.20%
Medium-term Notes, Maturing September 11, 2028 | Fixed interest rate | Debt Issuers | CAD
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate								4.20%			4.20%
Medium-term Notes, Maturing September 11, 2028 | Fixed interest rate | Debt Issuers | USD
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate											4.70%
Corporate borrowings
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings				$ 3,173,000,000					2,475,000,000
Increase (decrease) in corporate borrowings				698,000,000
Revolving credit facility with Brookfield
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity				500,000,000
Non-recourse borrowings				$ 0					0
Revolving credit facility with Brookfield | Floating interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis				1.80%		1.80%
Commitment fees				$ 0
Non-recourse borrowings
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings				20,020,000,000					18,544,000,000
Increase in borrowings				1,500,000,000
Non-recourse borrowings | CAD
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings				2,400,000,000					2,473,000,000
Non-recourse borrowings | USD
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings				7,457,000,000					7,801,000,000
Medium-term Notes, Maturing September 1, 2032
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings				$ 392,000,000					$ 0
Notional Amount (U.S. Dollars)	$ 500
Amount repaid	$ 450
Medium-term Notes, Maturing September 1, 2032 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate				2.90%		2.90%
Medium-term Notes, Maturing September 1, 2032 | Fixed interest rate | Debt Issuers | CAD
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	2.90%
Medium-term Notes, Maturing September 1, 2032 | Fixed interest rate | Debt Issuers | USD
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	3.90%

BORROWINGS - Corporate Borrowin

BORROWINGS - Corporate Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2020	Apr. 07, 2020	Dec. 31, 2019	Oct. 07, 2019
Disclosure of detailed information about borrowings [line items]
Deferred financing costs and other	$ (15)		$ 0
Corporate borrowings	3,158		2,475
Senior Unsecured Revolving Credit Facility - Maturing June 28, 2024
Disclosure of detailed information about borrowings [line items]
Total	$ 1,131		820
Senior Unsecured Revolving Credit Facility - Maturing June 28, 2024 | Floating interest rate
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis	1.20%
Borrowings, adjustment to interest rate basis	1.20%
Senior Unsecured Revolving Credit Facility - Maturing April 14, 2022
Disclosure of detailed information about borrowings [line items]
Total	$ 0		0
Medium Term Notes, Public - Canadian - Maturing March 11, 2022
Disclosure of detailed information about borrowings [line items]
Total	$ 0		346
Medium Term Notes, Public - Canadian - Maturing March 11, 2022 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate	3.50%
Medium Term Notes, Public - Canadian - Maturing February 22, 2024
Disclosure of detailed information about borrowings [line items]
Total	$ 236		231
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate	3.30%
Medium Term Notes, Public - Canadian - Maturing February 22, 2024
Disclosure of detailed information about borrowings [line items]
Total	$ 314		308
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate	3.30%
Medium-term Notes, Maturing September 11, 2028
Disclosure of detailed information about borrowings [line items]
Total	$ 550		384
Medium-term Notes, Maturing September 11, 2028 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate	4.20%
Medium-term Notes, Maturing October 9, 2029
Disclosure of detailed information about borrowings [line items]
Annual Rate		3.40%		3.50%
Total	$ 550		386
Medium-term Notes, Maturing October 9, 2029 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate	3.40%
Medium-term Notes, Maturing September 1, 2032
Disclosure of detailed information about borrowings [line items]
Total	$ 392		0
Medium-term Notes, Maturing September 1, 2032 | Fixed interest rate
Disclosure of detailed information about borrowings [line items]
Annual Rate	2.90%
Corporate borrowings
Disclosure of detailed information about borrowings [line items]
Total	$ 3,173		$ 2,475

BORROWINGS - Non-Recourse Borro

BORROWINGS - Non-Recourse Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about borrowings [line items]
Current	$ 1,551	$ 1,381
Non-current	18,469	17,163
Non-recourse borrowings
Disclosure of detailed information about borrowings [line items]
Total	$ 20,020	$ 18,544

BORROWINGS - Repayments on Non-

BORROWINGS - Repayments on Non-Recourse Borrowings (Details) - Non-recourse borrowings - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	$ 20,020	$ 18,544
Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	20,177
Deferred financing costs and other
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	(157)
2021 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	1,052
2022 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	881
2023 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	2,767
2024 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	2,015
2025 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	3,554
Thereafter | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	9,908
Utilities
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	8,067	7,213
Utilities | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	8,100
Utilities | Deferred financing costs and other
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	(33)
Utilities | 2021 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	486
Utilities | 2022 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	351
Utilities | 2023 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	1,676
Utilities | 2024 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	1,370
Utilities | 2025 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	783
Utilities | Thereafter | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	3,434
Transport
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	6,635	8,210
Transport | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	6,680
Transport | Deferred financing costs and other
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	(45)
Transport | 2021 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	431
Transport | 2022 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	454
Transport | 2023 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	330
Transport | 2024 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	391
Transport | 2025 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	928
Transport | Thereafter | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	4,146
Midstream
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	2,111	2,198
Midstream | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	2,153
Midstream | Deferred financing costs and other
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	(42)
Midstream | 2021 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	10
Midstream | 2022 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	11
Midstream | 2023 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	510
Midstream | 2024 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	10
Midstream | 2025 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	1,088
Midstream | Thereafter | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	524
Data
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	3,207	$ 923
Data | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	3,244
Data | Deferred financing costs and other
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	(37)
Data | 2021 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	125
Data | 2022 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	65
Data | 2023 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	251
Data | 2024 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	244
Data | 2025 | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	755
Data | Thereafter | Gross
Disclosure of detailed information about borrowings [line items]
Non-recourse borrowings	$ 1,804

BORROWINGS - Weighted Average I

BORROWINGS - Weighted Average Interest Rate (Details) - Interest on non-recourse borrowings - Weighted average	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	5.00%	5.00%
Utilities
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	4.00%	5.00%
Transport
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	5.00%	5.00%
Midstream
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	6.00%	6.00%
Data
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	6.00%	6.00%

BORROWINGS - Borrowings by Curr

BORROWINGS - Borrowings by Currency (Details) - Interest on non-recourse borrowings € in Millions, ₨ in Millions, £ in Millions, S/ in Millions, R$ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, in Millions

Dec. 31, 2020USD ($)

Dec. 31, 2020INR (₨)

Dec. 31, 2020GBP (£)

Dec. 31, 2020CAD ($)

Dec. 31, 2020CLF ( )

Dec. 31, 2020BRL (R$)

Dec. 31, 2020COP ($)

Dec. 31, 2020PEN (S/)

Dec. 31, 2020AUD ($)

Dec. 31, 2020EUR (€)

Dec. 31, 2020NZD ($)

Dec. 31, 2019USD ($)

Dec. 31, 2019INR (₨)

Dec. 31, 2019GBP (£)

Dec. 31, 2019CAD ($)

Dec. 31, 2019CLF ( )

Dec. 31, 2019BRL (R$)

Dec. 31, 2019COP ($)

Dec. 31, 2019PEN (S/)

Dec. 31, 2019AUD ($)

Dec. 31, 2019EUR (€)

Dec. 31, 2019NZD ($)

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

$ 20,020

$ 18,544

USD

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

7,457

7,801

Borrowings, local currency

7,457

7,801

CAD

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

2,400

2,473

Borrowings, local currency

$ 3,056

$ 3,212

GBP

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

2,941

2,411

Borrowings, local currency | £

£ 2,151

£ 1,819

BRL

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

1,161

1,489

Borrowings, local currency | R$

R$ 6035

R$ 6002

INR

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

3,760

1,427

Borrowings, local currency | ₨

₨ 274,457

₨ 101,929

UF

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

1,201

1,099

Borrowings, local currency |

29

29

AUD

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

320

1,010

Borrowings, local currency

$ 416

$ 1,439

PEN

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

417

452

Borrowings, local currency | S/

S/ 1,511

S/ 1,497

COP

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

418

342

Borrowings, local currency

$ 1,430,115

$ 1,124,325

European Union euros

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

59

0

Borrowings, local currency | €

€ 48

€ 0

NZD

Disclosure of detailed information about borrowings [line items]

Non-recourse borrowings

$ 43

$ 40

Borrowings, local currency

$ 60

$ 59

BORROWINGS - Supplemental Cash

BORROWINGS - Supplemental Cash Flows (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Corporate borrowings
Disclosure of reconciliation of liabilities arising from financing activities [abstract]
Beginning Balance	$ 2,475
Cash Flows	629
Acquisition	0
Foreign Exchange Movement	54
Ending Balance	3,158
Non-recourse borrowings
Disclosure of reconciliation of liabilities arising from financing activities [abstract]
Beginning Balance	18,544
Cash Flows	1,119
Acquisition	689
Foreign Exchange Movement	(332)
Ending Balance	$ 20,020

SUBSIDIARY PUBLIC ISSUERS - Add

SUBSIDIARY PUBLIC ISSUERS - Additional Information (Details) $ / shares in Units, $ in Millions, $ in Millions	Sep. 01, 2020CAD ($)	Nov. 06, 2019CAD ($)	Feb. 05, 2019USD ($)shares	Feb. 05, 2019CAD ($)$ / sharesshares	Oct. 30, 2018CAD ($)	Dec. 31, 2020USD ($)shares	Dec. 31, 2019USD ($)shares	Dec. 31, 2018USD ($)shares	Apr. 07, 2020CAD ($)	Oct. 07, 2019CAD ($)	Sep. 10, 2018CAD ($)
Disclosure of information about consolidated structured entities [line items]
Notional Amount (U.S. Dollars)						$ 14,743	$ 15,855
Partnership units issued, net of costs and repurchases						$ 9	$ 781	$ (16)
Medium-term Notes, Maturing September 1, 2032
Disclosure of information about consolidated structured entities [line items]
Notional Amount (U.S. Dollars)	$ 500
Amount repaid	$ 450
Medium-term Notes, Maturing September 11, 2028
Disclosure of information about consolidated structured entities [line items]
Notional Amount (U.S. Dollars)									$ 200		$ 500
Medium-term Notes, Maturing October 9, 2029
Disclosure of information about consolidated structured entities [line items]
Notional Amount (U.S. Dollars)									$ 200	$ 500
Borrowings, interest rate									3.40%	3.50%
Notional amount swapped										$ 92
Preferred Unitholders Capital
Disclosure of information about consolidated structured entities [line items]
Issued for cash (in shares) | shares						8,000,000	0	18,000,000
Preferred Unitholders Capital | BIPIC Series 1 Senior Preferred Shares
Disclosure of information about consolidated structured entities [line items]
Issued for cash (in shares) | shares			4,000,000	4,000,000
Number of share issued, price per share | $ / shares				$ 25
Quarterly fixed distribution rate			5.85%	5.85%
Underwriting related cost			$ 2
Share issue related cost			1
Preferred Unitholders Capital | BIPIC Series 1 Senior Preferred Shares | CAD
Disclosure of information about consolidated structured entities [line items]
Partnership units issued, net of costs and repurchases				$ 100
Preferred Unitholders Capital | BIPIC Series 1 Senior Preferred Shares | USD
Disclosure of information about consolidated structured entities [line items]
Partnership units issued, net of costs and repurchases			$ 75
Fixed interest rate | Medium-term Notes, Maturing September 1, 2032
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate						2.90%
Fixed interest rate | Medium-term Notes, Maturing September 11, 2028
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate						4.20%
Fixed interest rate | Medium-term Notes, Maturing October 9, 2029
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate						3.40%
Debt Issuers | Medium-term Notes, Maturing October 9, 2029
Disclosure of information about consolidated structured entities [line items]
Amount repaid		$ 375
Debt Issuers | Medium Term Notes, Maturing October 30, 2018
Disclosure of information about consolidated structured entities [line items]
Amount repaid					$ 125
Debt Issuers | Fixed interest rate | Medium-term Notes, Maturing September 1, 2032 | CAD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate	2.90%
Debt Issuers | Fixed interest rate | Medium-term Notes, Maturing September 1, 2032 | USD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate	3.90%
Debt Issuers | Fixed interest rate | Medium-term Notes, Maturing September 11, 2028 | CAD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate									4.20%		4.20%
Debt Issuers | Fixed interest rate | Medium-term Notes, Maturing September 11, 2028 | USD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate											4.70%
Debt Issuers | Fixed interest rate | Medium-term Notes, Maturing October 9, 2029 | CAD
Disclosure of information about consolidated structured entities [line items]
Borrowings, interest rate									3.40%	3.40%

SUBSIDIARY PUBLIC ISSUERS - Fin

SUBSIDIARY PUBLIC ISSUERS - Financial Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of comprehensive income [abstract]
Revenues	$ 8,885	$ 6,597	$ 4,652
Net income attributable to partnership	394	233	410
Statement of financial position [abstract]
Current assets	3,711	5,841
Non-current assets	57,620	50,467
Current liabilities	5,524	5,439
Non-current liabilities	34,134	28,692
Non-controlling interest—Redeemable Partnership Units held by Brookfield	1,687	2,039
BIPC exchangeable shares	638	0
Non-controlling interest—Exchange LP	12	18
In operating subsidiaries	13,954	14,113
Preferred unitholders	1,130	935
Our partnership
Statement of comprehensive income [abstract]
Revenues	0	0	0
Net income attributable to partnership	141	52	192
Statement of financial position [abstract]
Current assets	0	0
Non-current assets	5,363	5,983
Current liabilities	0	0
Non-current liabilities	0	0
Non-controlling interest—Redeemable Partnership Units held by Brookfield	0	0
BIPC exchangeable shares	0
Non-controlling interest—Exchange LP	0	0
In operating subsidiaries	0	0
Preferred unitholders	0	0
The Fincos
Statement of comprehensive income [abstract]
Revenues	0	0	0
Net income attributable to partnership	0	0	0
Statement of financial position [abstract]
Current assets	0	0
Non-current assets	0	0
Current liabilities	0	0
Non-current liabilities	2,027	1,655
Non-controlling interest—Redeemable Partnership Units held by Brookfield	0	0
BIPC exchangeable shares	0
Non-controlling interest—Exchange LP	0	0
In operating subsidiaries	0	0
Preferred unitholders	0	0
BIPIC
Statement of comprehensive income [abstract]
Revenues	0	0	0
Net income attributable to partnership	0	0	0
Statement of financial position [abstract]
Current assets	0	0
Non-current assets	944	889
Current liabilities	77	75
Non-current liabilities	0	0
Non-controlling interest—Redeemable Partnership Units held by Brookfield	0	0
BIPC exchangeable shares	0
Non-controlling interest—Exchange LP	0	0
In operating subsidiaries	0	0
Preferred unitholders	0	0
BIPC Holdings
Statement of comprehensive income [abstract]
Revenues	0	0	0
Net income attributable to partnership	5	0	0
Statement of financial position [abstract]
Current assets	0	0
Non-current assets	2,238	0
Current liabilities	0	0
Non-current liabilities	591	0
Non-controlling interest—Redeemable Partnership Units held by Brookfield	0	0
BIPC exchangeable shares	0
Non-controlling interest—Exchange LP	0	0
In operating subsidiaries	0	0
Preferred unitholders	0	0
Subsidiaries of our partnership other than the Issuers
Statement of comprehensive income [abstract]
Revenues	0	0	0
Net income attributable to partnership	389	233	410
Statement of financial position [abstract]
Current assets	0	0
Non-current assets	7,232	8,905
Current liabilities	0	0
Non-current liabilities	0	0
Non-controlling interest—Redeemable Partnership Units held by Brookfield	0	0
BIPC exchangeable shares	0
Non-controlling interest—Exchange LP	0	0
In operating subsidiaries	0	0
Preferred unitholders	0	0
Consolidating adjustments
Statement of comprehensive income [abstract]
Revenues	8,885	6,597	4,652
Net income attributable to partnership	(141)	(52)	$ (192)
Statement of financial position [abstract]
Current assets	3,711	5,841
Non-current assets	41,843	34,690
Current liabilities	5,447	5,364
Non-current liabilities	31,516	27,037
Non-controlling interest—Redeemable Partnership Units held by Brookfield	1,687	2,039
BIPC exchangeable shares	638
Non-controlling interest—Exchange LP	12	18
In operating subsidiaries	13,954	14,113
Preferred unitholders	$ 1,130	$ 935

PREFERRED SHARES (Details)

PREFERRED SHARES (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Disclosure of classes of share capital [line items]
Preferred shares	$ 20,000,000	$ 20,000,000
Dividend payables	$ 0	$ 0
Preference shares
Disclosure of classes of share capital [line items]
Expected dividend payable as percentage	6.00%
Brookfield Infrastructure Holdings (Canada) Inc. | Preference shares
Disclosure of classes of share capital [line items]
Number of shares issued (in shares)	196,000
Preferred shares	$ 5,000,000
Brookfield Infrastructure US Holdings I Corporation | Preference shares
Disclosure of classes of share capital [line items]
Number of shares issued (in shares)	1
Preferred shares	$ 5,000,000
Redemption price per share (in usd per share)	$ 5,000,000
BIP Bermuda Holdings I Limited | Preference shares
Disclosure of classes of share capital [line items]
Number of shares issued (in shares)	400,000
Preferred shares	$ 10,000,000
Brookfield Infrastructure Holdings (Canada) Inc. and BIP Bermuda Holdings I Limited | Preference shares
Disclosure of classes of share capital [line items]
Redemption price per share (in usd per share)	$ 25

INTEREST EXPENSE (Details)

INTEREST EXPENSE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Other financing fees	$ 140	$ 83	$ 12
Interest expense	1,179	904	555
Interest on corporate facility
Disclosure of detailed information about borrowings [line items]
Interest	19	20	4
Interest on corporate debt
Disclosure of detailed information about borrowings [line items]
Interest	76	63	56
Interest on non-recourse borrowings
Disclosure of detailed information about borrowings [line items]
Interest	$ 944	$ 738	$ 483

PAYROLL EXPENSE (Details)

PAYROLL EXPENSE (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)employee	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Analysis of income and expense [abstract]
Partnership, number of key employees or directors | employee	0
Payroll expense | $	$ 1,113	$ 704	$ 588

NON-WHOLLY OWNED SUBSIDIARIES -

NON-WHOLLY OWNED SUBSIDIARIES - Summarized Statement of Financial Position (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of subsidiaries [line items]
Current Assets	$ 3,711	$ 5,841
Non-Current Assets	57,620	50,467
Current Liabilities	5,524	5,439
Non-Current Liabilities	34,134	28,692
Disposal of investments in associates and joint ventures	0	135	$ 1,289
Non-Wholly Owned Subsidiaries
Disclosure of subsidiaries [line items]
Current Assets	3,613	5,723
Non-Current Assets	49,913	43,406
Current Liabilities	5,317	5,265
Non-Current Liabilities	32,480	27,184
Non-Controlling Interest in Operating Subsidiaries	13,955	14,113
Partnership Capital	1,774	2,567
U.K. regulated distribution operation
Disclosure of subsidiaries [line items]
Current Assets	181	159
Non-Current Assets	5,264	4,653
Current Liabilities	333	294
Non-Current Liabilities	3,241	2,888
Non-Controlling Interest in Operating Subsidiaries	367	318
Partnership Capital	1,504	1,312
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Current Assets	405	435
Non-Current Assets	3,494	4,606
Current Liabilities	203	199
Non-Current Liabilities	2,772	3,195
Non-Controlling Interest in Operating Subsidiaries	783	1,305
Partnership Capital	141	342
Colombian natural gas distribution operation
Disclosure of subsidiaries [line items]
Current Assets	220	214
Non-Current Assets	1,256	1,166
Current Liabilities	248	299
Non-Current Liabilities	478	314
Non-Controlling Interest in Operating Subsidiaries	636	684
Partnership Capital	114	83
Brazilian electricity transmission operation
Disclosure of subsidiaries [line items]
Current Assets	15	21
Non-Current Assets	320	401
Current Liabilities	11	12
Non-Current Liabilities	196	252
Non-Controlling Interest in Operating Subsidiaries	89	110
Partnership Capital	39	48
Canadian district energy operation
Disclosure of subsidiaries [line items]
Current Assets	28	29
Non-Current Assets	1,260	974
Current Liabilities	147	47
Non-Current Liabilities	567	506
Non-Controlling Interest in Operating Subsidiaries	429	337
Partnership Capital	145	113
U.S. district energy operation
Disclosure of subsidiaries [line items]
Current Assets	38	37
Non-Current Assets	1,097	964
Current Liabilities	78	41
Non-Current Liabilities	768	747
Non-Controlling Interest in Operating Subsidiaries	163	118
Partnership Capital	126	95
North American residential energy infrastructure operation
Disclosure of subsidiaries [line items]
Current Assets	210	171
Non-Current Assets	4,215	3,997
Current Liabilities	436	337
Non-Current Liabilities	2,321	1,925
Non-Controlling Interest in Operating Subsidiaries	1,174	1,341
Partnership Capital	494	565
Indian gas transmission operation
Disclosure of subsidiaries [line items]
Current Assets	94	155
Non-Current Assets	2,172	2,272
Current Liabilities	131	181
Non-Current Liabilities	1,308	910
Non-Controlling Interest in Operating Subsidiaries	781	1,157
Partnership Capital	46	179
Australian export terminal
Disclosure of subsidiaries [line items]
Current Assets		139
Non-Current Assets		1,994
Current Liabilities		347
Non-Current Liabilities		1,688
Non-Controlling Interest in Operating Subsidiaries		34
Partnership Capital		64
North American rail operation
Disclosure of subsidiaries [line items]
Current Assets	504	2,150
Non-Current Assets	9,569	9,392
Current Liabilities	699	1,409
Non-Current Liabilities	4,898	4,889
Non-Controlling Interest in Operating Subsidiaries	4,032	4,747
Partnership Capital	444	497
U.K. ports operation
Disclosure of subsidiaries [line items]
Current Assets	62	47
Non-Current Assets	1,105	934
Current Liabilities	45	78
Non-Current Liabilities	735	370
Non-Controlling Interest in Operating Subsidiaries	157	218
Partnership Capital	230	315
Australian port operation
Disclosure of subsidiaries [line items]
Current Assets	151	126
Non-Current Assets	863	927
Current Liabilities	131	124
Non-Current Liabilities	393	488
Non-Controlling Interest in Operating Subsidiaries	352	317
Partnership Capital	138	124
Chilean toll roads
Disclosure of subsidiaries [line items]
Current Assets	126	95
Non-Current Assets	835	821
Current Liabilities	125	67
Non-Current Liabilities	1,148	1,112
Non-Controlling Interest in Operating Subsidiaries	(335)	(320)
Partnership Capital	23	57
Peruvian toll roads
Disclosure of subsidiaries [line items]
Current Assets	105	122
Non-Current Assets	1,247	1,337
Current Liabilities	438	19
Non-Current Liabilities	212	683
Non-Controlling Interest in Operating Subsidiaries	591	638
Partnership Capital	111	119
Indian toll roads
Disclosure of subsidiaries [line items]
Current Assets	87	75
Non-Current Assets	808	868
Current Liabilities	177	83
Non-Current Liabilities	426	570
Non-Controlling Interest in Operating Subsidiaries	203	203
Partnership Capital	89	87
North American gas storage operation
Disclosure of subsidiaries [line items]
Current Assets	170	200
Non-Current Assets	1,433	1,449
Current Liabilities	67	112
Non-Current Liabilities	658	661
Non-Controlling Interest in Operating Subsidiaries	544	543
Partnership Capital	334	333
Western Canadian natural gas gathering and processing operation
Disclosure of subsidiaries [line items]
Current Assets	125	119
Non-Current Assets	3,964	3,721
Current Liabilities	131	147
Non-Current Liabilities	2,072	1,845
Non-Controlling Interest in Operating Subsidiaries	1,348	1,320
Partnership Capital	538	528
U.S. data center operation
Disclosure of subsidiaries [line items]
Current Assets	67	105
Non-Current Assets	1,634	1,665
Current Liabilities	95	112
Non-Current Liabilities	1,138	1,130
Non-Controlling Interest in Operating Subsidiaries	334	376
Partnership Capital	134	152
Australian Data Center Operation
Disclosure of subsidiaries [line items]
Current Assets	12	10
Non-Current Assets	311	280
Current Liabilities	127	5
Non-Current Liabilities	7	112
Non-Controlling Interest in Operating Subsidiaries	135	124
Partnership Capital	54	49
U.K. telecom towers operation
Disclosure of subsidiaries [line items]
Current Assets	32	26
Non-Current Assets	896	874
Current Liabilities	332	190
Non-Current Liabilities	327	419
Non-Controlling Interest in Operating Subsidiaries	203	219
Partnership Capital	66	72
Indian telecom towers operation
Disclosure of subsidiaries [line items]
Current Assets	392
Non-Current Assets	7,998
Current Liabilities	493
Non-Current Liabilities	5,392
Non-Controlling Interest in Operating Subsidiaries	1,917
Partnership Capital	588
Holding LP and other
Disclosure of subsidiaries [line items]
Current Assets	589	529
Non-Current Assets	172	111
Current Liabilities	870	735
Non-Current Liabilities	3,423	2,480
Non-Controlling Interest in Operating Subsidiaries	52	50
Partnership Capital	$ (3,584)	(2,625)
Colombian regulated distribution operation
Disclosure of subsidiaries [line items]
Current Assets		759
Non-Current Assets		0
Current Liabilities		427
Non-Current Liabilities		0
Non-Controlling Interest in Operating Subsidiaries		274
Partnership Capital		$ 58

NON-WHOLLY OWNED SUBSIDIARIES_2

NON-WHOLLY OWNED SUBSIDIARIES - Summarized Statement of Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 07, 2020
Disclosure of subsidiaries [line items]
Revenues	$ 8,885	$ 6,597	$ 4,652
Net income (loss) attributable to partnership	394	233	410
Non-Wholly Owned Subsidiaries
Disclosure of subsidiaries [line items]
Revenues	8,631	6,279	4,301
Attributable to non-controlling interest, Net Income (loss)	511	412	397
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(130)	241	(657)
Net income (loss) attributable to partnership	237	(6)	385
Attributable to unitholders, Other Comprehensive Income (loss)	364	364	(114)
U.K. regulated distribution operation
Disclosure of subsidiaries [line items]
Revenues	488	478	449
Attributable to non-controlling interest, Net Income (loss)	11	24	22
Attributable to non-controlling interest, Other Comprehensive Income (loss)	42	71	19
Net income (loss) attributable to partnership	46	103	99
Attributable to unitholders, Other Comprehensive Income (loss)	167	278	86
Colombian regulated distribution operation
Disclosure of subsidiaries [line items]
Revenues	6	179	177
Attributable to non-controlling interest, Net Income (loss)	2	10	15
Attributable to non-controlling interest, Other Comprehensive Income (loss)	156	(9)	(11)
Net income (loss) attributable to partnership	0	2	3
Attributable to unitholders, Other Comprehensive Income (loss)	(6)	(2)	(2)
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Revenues	942	1,141	1,112
Attributable to non-controlling interest, Net Income (loss)	309	349	357
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(399)	(83)	(469)
Net income (loss) attributable to partnership	116	132	139
Attributable to unitholders, Other Comprehensive Income (loss)	(152)	(33)	(190)
Colombian natural gas distribution operation
Disclosure of subsidiaries [line items]
Revenues	793	874	516
Attributable to non-controlling interest, Net Income (loss)	39	51	34
Attributable to non-controlling interest, Other Comprehensive Income (loss)	34	(4)	(91)
Net income (loss) attributable to partnership	7	7	7
Attributable to unitholders, Other Comprehensive Income (loss)	13	0	(14)
Brazilian electricity transmission operation
Disclosure of subsidiaries [line items]
Revenues	40	2
Attributable to non-controlling interest, Net Income (loss)	9	15
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(25)	(2)
Net income (loss) attributable to partnership	4	7
Attributable to unitholders, Other Comprehensive Income (loss)	(11)	(1)
Canadian district energy operation
Disclosure of subsidiaries [line items]
Revenues	127	121	118
Attributable to non-controlling interest, Net Income (loss)	5	6	7
Attributable to non-controlling interest, Other Comprehensive Income (loss)	115	85	32
Net income (loss) attributable to partnership	2	2	3
Attributable to unitholders, Other Comprehensive Income (loss)	39	29	11
U.S. district energy operation
Disclosure of subsidiaries [line items]
Revenues	137	158	149
Attributable to non-controlling interest, Net Income (loss)	(14)	(14)	(13)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	58	49	35
Net income (loss) attributable to partnership	(9)	(9)	(8)
Attributable to unitholders, Other Comprehensive Income (loss)	38	32	23
North American residential energy infrastructure operation
Disclosure of subsidiaries [line items]
Revenues	1,274	956	191
Attributable to non-controlling interest, Net Income (loss)	70	3	4
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(32)	63	(73)
Net income (loss) attributable to partnership	29	2	1
Attributable to unitholders, Other Comprehensive Income (loss)	(14)	26	(30)
Indian gas transmission operation
Disclosure of subsidiaries [line items]
Revenues	268	266
Attributable to non-controlling interest, Net Income (loss)	(61)	(39)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(23)	(33)
Net income (loss) attributable to partnership	(19)	(12)
Attributable to unitholders, Other Comprehensive Income (loss)	(7)	(10)
Australian export terminal
Disclosure of subsidiaries [line items]
Revenues	297	308	307
Attributable to non-controlling interest, Net Income (loss)	163	15	14
Attributable to non-controlling interest, Other Comprehensive Income (loss)	35	(3)	(6)
Net income (loss) attributable to partnership	54	43	34
Attributable to unitholders, Other Comprehensive Income (loss)	16	(8)	(16)
Disposal of ownership interest, percentage				22.00%
North American rail operation
Disclosure of subsidiaries [line items]
Revenues	1,974	0
Attributable to non-controlling interest, Net Income (loss)	86	0
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(153)	(10)
Net income (loss) attributable to partnership	11	0
Attributable to unitholders, Other Comprehensive Income (loss)	(16)	(1)
U.K. ports operation
Disclosure of subsidiaries [line items]
Revenues	235	197	205
Attributable to non-controlling interest, Net Income (loss)	22	4	12
Attributable to non-controlling interest, Other Comprehensive Income (loss)	16	19	3
Net income (loss) attributable to partnership	31	7	19
Attributable to unitholders, Other Comprehensive Income (loss)	22	27	4
Australian port operation
Disclosure of subsidiaries [line items]
Revenues	381	462	522
Attributable to non-controlling interest, Net Income (loss)	(29)	(24)	(6)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	40	(1)	(33)
Net income (loss) attributable to partnership	(10)	(7)	(3)
Attributable to unitholders, Other Comprehensive Income (loss)	14	0	(11)
Chilean toll roads
Disclosure of subsidiaries [line items]
Revenues	116	162	168
Attributable to non-controlling interest, Net Income (loss)	(21)	0	(1)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(21)	27	(7)
Net income (loss) attributable to partnership	(6)	2	(1)
Attributable to unitholders, Other Comprehensive Income (loss)	2	16	(7)
Peruvian toll roads
Disclosure of subsidiaries [line items]
Revenues	81	107	92
Attributable to non-controlling interest, Net Income (loss)	7	5	3
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(54)	10	(25)
Net income (loss) attributable to partnership	1	1	1
Attributable to unitholders, Other Comprehensive Income (loss)	(11)	2	(5)
Indian toll roads
Disclosure of subsidiaries [line items]
Revenues	111	130	61
Attributable to non-controlling interest, Net Income (loss)	(24)	(19)	(12)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(4)	(6)	2
Net income (loss) attributable to partnership	(8)	(9)	(6)
Attributable to unitholders, Other Comprehensive Income (loss)	(2)	(3)	(1)
North American gas storage operation
Disclosure of subsidiaries [line items]
Revenues	143	143	150
Attributable to non-controlling interest, Net Income (loss)	(10)	12	(16)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	10	52	22
Net income (loss) attributable to partnership	(7)	9	(12)
Attributable to unitholders, Other Comprehensive Income (loss)	6	32	15
Western Canadian natural gas gathering and processing operation
Disclosure of subsidiaries [line items]
Revenues	501	256	61
Attributable to non-controlling interest, Net Income (loss)	29	35	3
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(1)	31	(53)
Net income (loss) attributable to partnership	12	14	1
Attributable to unitholders, Other Comprehensive Income (loss)	(1)	12	(21)
U.S. data center operation
Disclosure of subsidiaries [line items]
Revenues	273	294	0
Attributable to non-controlling interest, Net Income (loss)	(32)	(22)	0
Attributable to non-controlling interest, Other Comprehensive Income (loss)	(10)	(10)	(1)
Net income (loss) attributable to partnership	(13)	(7)	0
Attributable to unitholders, Other Comprehensive Income (loss)	(4)	(4)	0
Australian Data Center Operation
Disclosure of subsidiaries [line items]
Revenues	24	20
Attributable to non-controlling interest, Net Income (loss)	4	6
Attributable to non-controlling interest, Other Comprehensive Income (loss)	12	(3)
Net income (loss) attributable to partnership	1	2
Attributable to unitholders, Other Comprehensive Income (loss)	5	(1)
U.K. telecom towers operation
Disclosure of subsidiaries [line items]
Revenues	51	0
Attributable to non-controlling interest, Net Income (loss)	(3)	0
Attributable to non-controlling interest, Other Comprehensive Income (loss)	5	(2)
Net income (loss) attributable to partnership	(1)	0
Attributable to unitholders, Other Comprehensive Income (loss)	2	(1)
Indian telecom towers operation
Disclosure of subsidiaries [line items]
Revenues	360
Attributable to non-controlling interest, Net Income (loss)	5
Attributable to non-controlling interest, Other Comprehensive Income (loss)	69
Net income (loss) attributable to partnership	3
Attributable to unitholders, Other Comprehensive Income (loss)	14
Holding LP and other
Disclosure of subsidiaries [line items]
Revenues	9	25	23
Attributable to non-controlling interest, Net Income (loss)	(56)	(5)	(26)
Attributable to non-controlling interest, Other Comprehensive Income (loss)	0	0	(1)
Net income (loss) attributable to partnership	(7)	(295)	108
Attributable to unitholders, Other Comprehensive Income (loss)	$ 250	$ (26)	$ 44
Colombian regulated distribution operation
Disclosure of subsidiaries [line items]
Disposal of ownership interest, percentage	17.00%

NON-WHOLLY OWNED SUBSIDIARIES_3

NON-WHOLLY OWNED SUBSIDIARIES - Summarized Cash Flow Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	$ 2,530	$ 2,143	$ 1,362
Cash Flow Activities, Investing	(4,609)	(11,372)	(5,564)
Cash Flow Activities, Financing	2,126	9,542	4,418
Disposal of investments in associates and joint ventures	0	135	1,289
Non-Wholly Owned Subsidiaries
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	2,396	2,110	1,245
Cash Flow Activities, Investing	(4,537)	(11,125)	(5,486)
Cash Flow Activities, Financing	2,200	9,337	4,451
U.K. regulated distribution operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	241	271	226
Cash Flow Activities, Investing	(372)	(416)	(413)
Cash Flow Activities, Financing	133	147	179
Colombian regulated distribution operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	2	26	11
Cash Flow Activities, Investing	0	(24)	(26)
Cash Flow Activities, Financing	(2)	(4)	0
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	634	839	868
Cash Flow Activities, Investing	(34)	(21)	(26)
Cash Flow Activities, Financing	(588)	(702)	(792)
Colombian natural gas distribution operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	89	72	94
Cash Flow Activities, Investing	(35)	(38)	(217)
Cash Flow Activities, Financing	(55)	(73)	205
Brazilian electricity transmission operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	13	22
Cash Flow Activities, Investing	0	(4)
Cash Flow Activities, Financing	(14)	(6)
Canadian district energy operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	42	53	39
Cash Flow Activities, Investing	(97)	(68)	(42)
Cash Flow Activities, Financing	55	14	(45)
U.S. district energy operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	51	22	24
Cash Flow Activities, Investing	(50)	(29)	(16)
Cash Flow Activities, Financing	0	2	(18)
North American residential energy infrastructure operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	(42)	128	16
Cash Flow Activities, Investing	(5)	(228)	(2,182)
Cash Flow Activities, Financing	45	87	2,188
Indian gas transmission operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	136	208
Cash Flow Activities, Investing	(14)	(1,950)
Cash Flow Activities, Financing	(117)	1,746
Australian export terminal
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	68	91	85
Cash Flow Activities, Investing	(27)	(23)	(21)
Cash Flow Activities, Financing	(57)	(55)	(63)
North American rail operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	616	0
Cash Flow Activities, Investing	(24)	(6,460)
Cash Flow Activities, Financing	(606)	6,578
U.K. ports operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	42	27	27
Cash Flow Activities, Investing	(25)	(43)	(17)
Cash Flow Activities, Financing	(11)	9	(8)
Australian port operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	28	52	42
Cash Flow Activities, Investing	(32)	(45)	(68)
Cash Flow Activities, Financing	26	(10)	22
Chilean toll roads
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	49	62	74
Cash Flow Activities, Investing	(1)	(2)	(1)
Cash Flow Activities, Financing	(34)	(55)	(82)
Peruvian toll roads
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	18	47	91
Cash Flow Activities, Investing	(22)	(39)	(33)
Cash Flow Activities, Financing	0	0	0
Indian toll roads
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	11	7	18
Cash Flow Activities, Investing	(18)	(9)	(184)
Cash Flow Activities, Financing	19	(29)	209
North American gas storage operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	68	83	0
Cash Flow Activities, Investing	12	(10)	(8)
Cash Flow Activities, Financing	(53)	(63)	7
Western Canadian natural gas gathering and processing operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	156	92	48
Cash Flow Activities, Investing	(299)	(1,396)	(1,923)
Cash Flow Activities, Financing	114	1,339	1,910
U.S. data center operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	77	51	(1)
Cash Flow Activities, Investing	(16)	(6)	(1,103)
Cash Flow Activities, Financing	(63)	(35)	1,118
Australian Data Center Operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	7	0
Cash Flow Activities, Investing	(3)	(277)
Cash Flow Activities, Financing	(3)	286
U.K. telecom towers operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	27	3
Cash Flow Activities, Investing	(20)	(280)
Cash Flow Activities, Financing	(9)	289
Indian telecom towers operation
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	245	0
Cash Flow Activities, Investing	(3,451)	0
Cash Flow Activities, Financing	3,331	0
Holding LP and other
Disclosure of subsidiaries [line items]
Cash Flow Activities, Operating	(182)	(46)	(417)
Cash Flow Activities, Investing	(4)	243	794
Cash Flow Activities, Financing	$ 89	$ (128)	$ (379)

INCOME TAXES - Deferred Income

INCOME TAXES - Deferred Income Tax Balances (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax assets, gross	$ 1,410	$ 761
Deferred income tax liabilities, gross	(5,898)	(5,269)
Deferred income tax assets	124	112
Deferred income tax liabilities	(4,612)	(4,620)
Net deferred income tax liabilities	(4,488)	(4,508)	$ (3,346)
Tax losses carried forward
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax assets, gross	1,002	397
Net deferred income tax liabilities	999	397	$ 394
Deferred tax assets recognized based on future projected profits	80	67
Financial instruments and other
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax assets, gross	408	364
Property, plant and equipment
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax liabilities, gross	(3,367)	(2,541)
Intangible assets
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax liabilities, gross	(2,458)	(2,714)
Investment in associates and investment properties
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred income tax liabilities, gross	$ (73)	$ (14)

INCOME TAXES - Deferred Tax Bal

INCOME TAXES - Deferred Tax Balances and Movement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of changes in deferred tax liability (asset) [abstract]
Net deferred income tax liabilities	$ (4,508)	$ (3,346)
Net Income	(54)	(28)
Other Comprehensive Income	(125)	(142)	$ (97)
Other	20	32
Acquisitions/ Dispositions	179	(1,024)
Net deferred income tax liabilities	(4,488)	(4,508)	(3,346)
Deferred income tax assets related to non-capital losses and capital losses
Reconciliation of changes in deferred tax liability (asset) [abstract]
Net deferred income tax liabilities	397	394
Net Income	506	40
Other Comprehensive Income	0	0
Other	146	(22)
Acquisitions/ Dispositions	(50)	(15)
Net deferred income tax liabilities	999	397	394
Deferred income tax liabilities related to differences in tax and book basis, net
Reconciliation of changes in deferred tax liability (asset) [abstract]
Net deferred income tax liabilities	(4,905)	(3,740)
Net Income	(560)	(68)
Other Comprehensive Income	(125)	(142)
Other	(126)	54
Acquisitions/ Dispositions	229	(1,009)
Net deferred income tax liabilities	$ (5,487)	$ (4,905)	$ (3,740)

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 1,249,000	$ 990,000
Temporary differences associated with investments in subsidiaries, associates and joint ventures for which deferred tax liabilities have not been recognised	15,000	2,441,000
Deductible Temporary Diferences
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	143,000	0
Deductible Temporary Diferences | Do not expire
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	143,000	0
Capital Losses
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	143,000	332,000
Capital Losses | Do not expire
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	143,000	332,000
Non-Capital Losses
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	963,000	658,000
Non-Capital Losses | Do not expire
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 573,000	$ 323,000

INCOME TAXES - Expiry Date of N

INCOME TAXES - Expiry Date of Non-Capital Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 1,249,000	$ 990,000
Non-Capital Losses
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	963,000	658,000
Non-Capital Losses | 2021
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	36,000	5,000
Non-Capital Losses | 2022
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	37,000	36,000
Non-Capital Losses | 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	18,000	38,000
Non-Capital Losses | 2024
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	7,000	29,000
Non-Capital Losses | 2025
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	5,000	4,000
Non-Capital Losses | Beyond
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	287,000	223,000
Non-Capital Losses | Do not expire
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 573,000	$ 323,000

INCOME TAXES - Income Tax Recog

INCOME TAXES - Income Tax Recognized in Profit or Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Abstract]
Current income tax expense	$ 237	$ 250	$ 318
Origination and reversal of temporary differences	(37)	29	53
Changes in tax rates or the imposition of new taxes	41	(20)	(11)
Previously unrecognized deferred taxes	50	19	4
Net income before income tax	1,195	928	1,170
Income tax expense calculated at the domestic rates applicable to profits in the country concerned	431	304	275
Change in substantively enacted tax rates	41	(20)	(11)
International operations subject to different tax rates	(21)	(6)	(17)
Taxable income attributable to non-controlling interests	(91)	(62)	(35)
Portion of gains subject to different tax rates	(117)	34	141
Deferred tax assets not recognized	50	19	4
Permanent differences and other	(2)	9	7
Total income tax expense	$ 291	$ 278	$ 364

INCOME TAXES - Income Tax Rec_2

INCOME TAXES - Income Tax Recognized Directly in Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total income tax expense recognized directly in other comprehensive income	$ (125)	$ (142)	$ (97)
Revaluation of property, plant and equipment
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total income tax expense recognized directly in other comprehensive income	(219)	(148)	(95)
Cash flow hedges
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total income tax expense recognized directly in other comprehensive income	63	3	3
Pension plan actuarial changes
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total income tax expense recognized directly in other comprehensive income	$ 31	$ 3	$ (5)

PARTNERSHIP CAPITAL - Additiona

PARTNERSHIP CAPITAL - Additional Information (Details) $ / shares in Units, $ / shares in Units, shares in Millions, $ in Millions		Jan. 21, 2021USD ($)$ / sharesshares	Sep. 21, 2020USD ($)$ / sharesshares	Oct. 16, 2018USD ($)shares	Sep. 12, 2018USD ($)shares	Sep. 12, 2018CAD ($)$ / sharesshares	Jan. 23, 2018USD ($)shares	Jan. 23, 2018CAD ($)$ / sharesshares	Jul. 31, 2019USD ($)$ / sharesshares	Dec. 31, 2020USD ($)day$ / sharesshares		Dec. 31, 2019USD ($)$ / sharesshares		Dec. 31, 2018USD ($)$ / sharesshares		Mar. 31, 2020shares
Schedule of Partnership Units [Line Items]
Partnership units issued, net of costs and repurchases										$ 9,000,000		$ 781,000,000		$ (16,000,000)
Repurchased and cancelled	[1]											29,000,000		31,000,000
Volume weighted average of trading price, number of trading days | day										5
Exchangeable shares issued as a result of special distribution | shares																46.3
Unit issuance	[1]									$ 9,000,000		$ 809,000,000		$ 588,000,000
Preferred Unitholders Capital
Schedule of Partnership Units [Line Items]
Issued for cash (in shares) | shares										8		0		18
Repurchased and cancelled	[1]											$ 1,000,000		$ 1,000,000
Unit issuance										$ 195,000,000		$ 0	[1]	$ 342,000,000	[1]
Repurchased and cancelled (in shares) | shares										0		0		0.1
Repurchased and cancelled										$ 0		$ (1,000,000)		$ (1,000,000)
Preferred Unitholders Capital | Series 14 Preferred Units | Major ordinary share transactions
Schedule of Partnership Units [Line Items]
Issued for cash (in shares) | shares		8
Number of share issued, price per share | $ / shares		$ 25
Partnership units issued, net of costs and repurchases		$ 200,000,000
Quarterly fixed distribution rate		5.00%
Underwriting related cost		$ 6,000,000
Preferred Unitholders Capital | Series 13 Preferred Units
Schedule of Partnership Units [Line Items]
Issued for cash (in shares) | shares			8
Number of share issued, price per share | $ / shares			$ 25
Partnership units issued, net of costs and repurchases			$ 200,000,000
Quarterly fixed distribution rate			5.125%
Underwriting related cost			$ 5,000,000
Preferred Unitholders Capital | Series 11 Preferred Units
Schedule of Partnership Units [Line Items]
Issued for cash (in shares) | shares					10	10
Number of share issued, price per share | $ / shares						$ 25
Partnership units issued, net of costs and repurchases					$ 190,000,000	$ 250
Share issue related cost					$ 1,000,000
Quarterly fixed distribution rate					5.10%	5.10%
Underwriting related cost					$ 4,000,000
Preferred Unitholders Capital | Series 9 Preferred Units
Schedule of Partnership Units [Line Items]
Issued for cash (in shares) | shares							8	8
Number of share issued, price per share | $ / shares								$ 25
Partnership units issued, net of costs and repurchases							$ 161,000,000	$ 200
Share issue related cost							$ 1,000,000
Quarterly fixed distribution rate							5.00%	5.00%
Underwriting related cost							$ 4,000,000
Special General Partner
Schedule of Partnership Units [Line Items]
Partnership distributions										$ 183,000,000		$ 158,000,000		$ 136,000,000
Special General Partner | Partners' capital
Schedule of Partnership Units [Line Items]
Issued for cash (in shares) | shares										0		0		0
Repurchased and cancelled (in shares) | shares										0		0		0
Repurchased and cancelled										$ 0		$ 0		$ 0
Weighted average number of shares outstanding | shares										1.6		1.6		1.6
Unit issuance										$ 0		$ 0		$ 0
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
Schedule of Partnership Units [Line Items]
Increase in equity									$ 8,000,000
Unit issuance	[1]									$ 0		$ 250,000,000
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Partners' capital
Schedule of Partnership Units [Line Items]
Issued for cash (in shares) | shares									6.1	0		6.1		0
Partnership units issued, net of costs and repurchases									$ 250,000,000
Weighted average number of shares outstanding | shares										122		118.6		115.8
Unit issuance										$ 0	[1]	$ 250,000,000	[1]	$ 0
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Partners' capital | Holding LP
Schedule of Partnership Units [Line Items]
Number of shares issued (in shares) | shares										122
Limited Partners
Schedule of Partnership Units [Line Items]
Repurchased and cancelled	[1]											$ 28,000,000		$ 30,000,000
Limited partners (in dollars per unit) | $ / shares	[2]									$ 0.35		$ 0.06		$ 0.53
Unit issuance	[1]									$ 9,000,000		$ 559,000,000		$ 14,000,000
Limited Partners | Partners' capital
Schedule of Partnership Units [Line Items]
Issued for cash (in shares) | shares									13.5	0.2		13.8		0.3
Number of share issued, price per share | $ / shares									$ 42.50
Partnership units issued, net of costs and repurchases									$ 575,000,000
Share issue related cost									$ 24,000,000
Repurchased and cancelled (in shares) | shares										0		0.8		0.9
Repurchased and cancelled										$ 0		$ 28,000,000	[1]	$ 30,000,000	[1]
Share repurchase related cost										$ 1,000,000		$ 1,000,000		$ 1,000,000
Dividend reinvestment plan, unit issued (less than) | shares										1		1		1
Dividend reinvestment plan, proceeds										$ 9,000,000		$ 8,000,000		$ 14,000,000
Weighted average number of shares outstanding | shares										294.7		285.6		276.9
Unit issuance	[1]									$ 9,000,000		$ 559,000,000		$ 14,000,000
Non-controlling interest— Exchange LP Units | Partners' capital
Schedule of Partnership Units [Line Items]
Issued for cash (in shares) | shares				5.7						0.1		0		5.7
Unit issuance				$ 232,000,000						$ 0		$ 0		$ 232,000,000
Exchange LP conversion (in shares) | shares										0.3		3.2		1.3
Exchange LP unit conversion, value										$ 3,000,000		$ 53,000,000		$ 20,000,000
Incentive Distribution, $0.1827 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units)
Schedule of Partnership Units [Line Items]
Distributions threshold, per quarter, per share | $ / shares										$ 0.1827
Distribution rights entitle as percent, threshold										15.00%
Incentive Distribution, $0.198 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units)
Schedule of Partnership Units [Line Items]
Distributions threshold, per quarter, per share | $ / shares										$ 0.198
Distribution rights entitle as percent, threshold										25.00%
Incentive Distribution, $0.203 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units)
Schedule of Partnership Units [Line Items]
Distributions threshold, per quarter, per share | $ / shares												$ 0.203
Incentive Distribution, $0.22 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units)
Schedule of Partnership Units [Line Items]
Distributions threshold, per quarter, per share | $ / shares												$ 0.22
[1]	Refer to Note 26, Partnership Capital.
[2]	Basic and diluted income per limited partner unit for the years ended December 31, 2020, 2019, and 2018 have been restated to reflect the impact of the special distribution on March 31, 2020. Refer to Note 1, Organization and Description of the Business, for further details.

PARTNERSHIP CAPITAL - Capital C

PARTNERSHIP CAPITAL - Capital Categories (Details) shares in Millions, $ in Millions, $ in Millions		Jul. 29, 2020CAD ($)shares	Oct. 16, 2018USD ($)shares	Jul. 31, 2019shares	Dec. 31, 2020USD ($)shares		Dec. 31, 2019USD ($)shares		Dec. 31, 2018USD ($)shares
Changes in equity [abstract]
Balance as					$ 22,177		$ 14,668		$ 13,474
Unit issuance	[1]				9		809		588
Unit repurchases	[1]						(29)		(31)
Balance as					21,673		22,177		14,668
Limited Partners
Changes in equity [abstract]
Balance as					5,048		4,513		4,967
Unit issuance	[1]				9		559		14
Unit repurchases	[1]						(28)		(30)
Balance as					4,233		5,048		4,513
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
Changes in equity [abstract]
Balance as					2,039		1,823		2,012
Unit issuance	[1]				0		250
Balance as					$ 1,687		$ 2,039		$ 1,823
Partners' capital | Special General Partner and Limited Partner
Changes in equity [abstract]
Opening balance (in shares) | shares					295.1		278.9		278.2
Issued for cash (in shares) | shares					0.2		13.8		0.3
Conversion from Exchange LP Units (in shares) | shares					0.3		3.2		1.3
Conversion from BIPC exchangeable shares (in shares) | shares					1.4		0		0
Repurchased and cancelled (in shares) | shares					0		0.8		0.9
Ending balance (in shares) | shares					297		295.1		278.9
Balance as					$ 5,514		$ 4,930		$ 4,926
Unit issuance					9		559		14
Conversion from Exchange LP Units					3		53		20
Conversion from BIPC exchangeable shares					19		0		0
Unit repurchases					0		(28)		(30)
Balance as					$ 5,545		$ 5,514		$ 4,930
Partners' capital | Special General Partner
Changes in equity [abstract]
Opening balance (in shares) | shares					1.6		1.6		1.6
Issued for cash (in shares) | shares					0		0		0
Conversion from Exchange LP Units (in shares) | shares					0		0		0
Conversion from BIPC exchangeable shares (in shares) | shares					0		0		0
Repurchased and cancelled (in shares) | shares					0		0		0
Ending balance (in shares) | shares					1.6		1.6		1.6
Balance as					$ 19		$ 19		$ 19
Unit issuance					0		0		0
Conversion from Exchange LP Units					0		0		0
Conversion from BIPC exchangeable shares					0		0		0
Unit repurchases					0		0		0
Balance as					$ 19		$ 19		$ 19
Partners' capital | Limited Partners
Changes in equity [abstract]
Opening balance (in shares) | shares					293.5		277.3		276.6
Issued for cash (in shares) | shares				13.5	0.2		13.8		0.3
Conversion from Exchange LP Units (in shares) | shares					0.3		3.2		1.3
Conversion from BIPC exchangeable shares (in shares) | shares					1.4		0		0
Repurchased and cancelled (in shares) | shares					0		0.8		0.9
Ending balance (in shares) | shares					295.4		293.5		277.3
Balance as					$ 5,495		$ 4,911		$ 4,907
Unit issuance	[1]				9		559		14
Conversion from Exchange LP Units					3		53		20
Conversion from BIPC exchangeable shares					19		0		0
Unit repurchases					0		(28)	[1]	(30)	[1]
Balance as					$ 5,526		$ 5,495		$ 4,911
Partners' capital |  Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
Changes in equity [abstract]
Opening balance (in shares) | shares					121.9		115.8		115.8
Issued for cash (in shares) | shares				6.1	0		6.1		0
Ending balance (in shares) | shares					121.9		121.9		115.8
Balance as					$ 2,328		$ 2,078		$ 2,078
Unit issuance					0	[1]	250	[1]	0
Balance as					$ 2,328		$ 2,328		$ 2,078
Partners' capital | Non-controlling interest— BIPC exchangeable shares
Changes in equity [abstract]
Opening balance (in shares) | shares					0		0		0
Issued for cash (in shares) | shares		5
Non-cash issuance (in shares) | shares					46.3		0		0
Class A shares of Brookfield Infrastructure Corporation conversion (in shares) | shares					(1.4)		0		0
Ending balance (in shares) | shares					44.9		0		0
Balance as					$ 0		$ 0		$ 0
Unit issuance		$ 305
BIPC exchangeable shares conversion					(19)		0		0
Balance as					$ (19)		$ 0		$ 0
Partners' capital | Non-controlling interest— Exchange LP Units
Changes in equity [abstract]
Opening balance (in shares) | shares					1.2		4.4		0
Issued for cash (in shares) | shares			5.7		0.1		0		5.7
Exchange LP conversion (in shares) | shares					(0.3)		(3.2)		(1.3)
Ending balance (in shares) | shares					1		1.2		4.4
Balance as					$ 159		$ 212		$ 0
Unit issuance			$ 232		0		0		232
Exchange LP conversion					(3)		(53)		(20)
Balance as					$ 156		$ 159		$ 212
Preferred Unitholders Capital
Changes in equity [abstract]
Opening balance (in shares) | shares					49.9		49.9		32
Issued for cash (in shares) | shares					8		0		18
Repurchased and cancelled (in shares) | shares					0		0		(0.1)
Ending balance (in shares) | shares					57.9		49.9		49.9
Balance as					$ 935		$ 936		$ 595
Unit issuance					195		0	[1]	342	[1]
Unit repurchases	[1]						(1)		(1)
Repurchased and cancelled					0		(1)		(1)
Balance as					$ 1,130		$ 935		$ 936
[1]	Refer to Note 26, Partnership Capital.

ACCUMULATED OTHER COMPREHENSI_3

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions		Feb. 07, 2019	Nov. 30, 2019	Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				$ 22,177		$ 14,668	$ 13,474
Other comprehensive income (loss)				(62)		590	(945)
Issuance of class A shares of BIPC	[1],[2]			0
Other items	[4]			104	[3]	173	0
Balance as				21,673		22,177	14,668
Chilean toll roads
Disclosure of analysis of other comprehensive income by item [line items]
Reclassification adjustments on exchange differences on translation, net of tax		$ (38)		$ 44		$ 38
Disposal of ownership interest, percentage				33.00%		33.00%
Colombian regulated distribution operation
Disclosure of analysis of other comprehensive income by item [line items]
Reclassification adjustments on exchange differences on translation, net of tax				$ 61
Disposal of ownership interest, percentage				17.00%
Texas electricity transmission project
Disclosure of analysis of other comprehensive income by item [line items]
Reclassification adjustments on exchange differences on translation, net of tax				$ 25
Disposal of ownership interest, percentage				11.00%
Australia District Energy Business
Disclosure of analysis of other comprehensive income by item [line items]
Increase (decrease) through transfer between revaluation surplus and retained earnings, equity			$ 12
Reclassification adjustments on exchange differences on translation, net of tax			$ (35)			$ 12
Limited Partners
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				$ 5,048		4,513	4,967
Other comprehensive income (loss)				(11)		246	(205)
Issuance of class A shares of BIPC	[1],[2]			(441)
Other items	[4]			110	[3]	314	120
Balance as				4,233		5,048	4,513
Limited Partners | Accumulated Other Comprehensive Income
Disclosure of analysis of other comprehensive income by item [line items]
Balance as	[4]			473		209	864
Other comprehensive income (loss)	[4]			(11)		246	(205)
Issuance of class A shares of BIPC	[1],[2],[4]			18
Other items	[4]			(28)	[3]	18	(450)
Balance as	[4]			452		473	209
Limited Partners | Revaluation Surplus
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				899		667
Other comprehensive income (loss)				175		240
Issuance of class A shares of BIPC				0
Other items				(59)		(8)
Balance as				1,015		899	667
Limited Partners | Foreign Currency Translation
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				(1,324)		(1,336)
Other comprehensive income (loss)				(287)		(8)
Issuance of class A shares of BIPC				18
Other items				31		20
Balance as				(1,562)		(1,324)	(1,336)
Limited Partners | Net Investment Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				30		95
Other comprehensive income (loss)				7		(71)
Issuance of class A shares of BIPC				0
Other items				0		6
Balance as				37		30	95
Limited Partners | Cash Flow Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				(82)		(96)
Other comprehensive income (loss)				68		14
Issuance of class A shares of BIPC				0
Other items				0		0
Balance as				(14)		(82)	(96)
Limited Partners | Marketable Securities
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0		(33)
Other comprehensive income (loss)				39		33
Issuance of class A shares of BIPC				0
Other items				0		0
Balance as				39		0	(33)
Limited Partners | Unrealized Actuarial Losses
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				(18)		(18)
Other comprehensive income (loss)				(18)		0
Issuance of class A shares of BIPC				0
Other items				0		0
Balance as				(36)		(18)	(18)
Limited Partners | Equity accounted investments
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				968		930
Other comprehensive income (loss)				5		38
Issuance of class A shares of BIPC				0
Other items				0		0
Balance as				973		968	930
General partner
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				24		22	25
Other comprehensive income (loss)				(1)		1
Issuance of class A shares of BIPC	[1],[2]			(2)
Balance as				19		24	22
General partner | Accumulated Other Comprehensive Income
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				4		3
Other comprehensive income (loss)				(1)		1
Balance as				3		4	3
General partner | Revaluation Surplus
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				6		5
Other comprehensive income (loss)				1		1
Balance as				7		6	5
General partner | Foreign Currency Translation
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				(9)		(9)
Other comprehensive income (loss)				(3)		0
Balance as				(12)		(9)	(9)
General partner | Net Investment Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				2		2
Other comprehensive income (loss)				0		0
Balance as				2		2	2
General partner | Cash Flow Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0		0
Other comprehensive income (loss)				1		0
Balance as				1		0	0
General partner | Marketable Securities
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0		0
Other comprehensive income (loss)				0		0
Balance as				0		0	0
General partner | Unrealized Actuarial Losses
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0		0
Other comprehensive income (loss)				0		0
Balance as				0		0	0
General partner | Equity accounted investments
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				5		5
Other comprehensive income (loss)				0		0
Balance as				5		5	5
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				2,039		1,823	2,012
Other comprehensive income (loss)				(7)		103	(87)
Issuance of class A shares of BIPC	[1],[2]			(183)
Other items	[4]			36	[3]	98	43
Balance as				1,687		2,039	1,823
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Accumulated Other Comprehensive Income
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				223		112	387
Other comprehensive income (loss)				(7)		103	(87)
Issuance of class A shares of BIPC	[1],[2]			5
Other items	[4]			(12)	[3]	8	(188)
Balance as				209		223	112
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Revaluation Surplus
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				391		296
Other comprehensive income (loss)				72		99
Issuance of class A shares of BIPC				0
Other items				(25)		(4)
Balance as				438		391	296
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Foreign Currency Translation
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				(546)		(552)
Other comprehensive income (loss)				(119)		(3)
Issuance of class A shares of BIPC				5
Other items				13		9
Balance as				(647)		(546)	(552)
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Net Investment Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				14		40
Other comprehensive income (loss)				3		(29)
Issuance of class A shares of BIPC				0
Other items				0		3
Balance as				17		14	40
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Cash Flow Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				(37)		(43)
Other comprehensive income (loss)				28		6
Issuance of class A shares of BIPC				0
Other items				0		0
Balance as				(9)		(37)	(43)
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Marketable Securities
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				(2)		(16)
Other comprehensive income (loss)				15		14
Issuance of class A shares of BIPC				0
Other items				0		0
Balance as				13		(2)	(16)
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Unrealized Actuarial Losses
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				(4)		(4)
Other comprehensive income (loss)				(8)		0
Issuance of class A shares of BIPC				0
Other items				0		0
Balance as				(12)		(4)	(4)
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield | Equity accounted investments
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				407		391
Other comprehensive income (loss)				2		16
Issuance of class A shares of BIPC				0
Other items				0		0
Balance as				409		407	391
Non-controlling interest— BIPC exchangeable shares
Disclosure of analysis of other comprehensive income by item [line items]
Reclassification adjustments on exchange differences on translation, net of tax				23
Non-controlling interest— BIPC exchangeable shares | Accumulated Other Comprehensive Income
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0
Other comprehensive income (loss)				87
Issuance of class A shares of BIPC				(23)
Other items				(2)
Balance as				62		0
Non-controlling interest— BIPC exchangeable shares | Revaluation Surplus
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0
Other comprehensive income (loss)				29
Issuance of class A shares of BIPC				0
Other items				(2)
Balance as				27		0
Non-controlling interest— BIPC exchangeable shares | Foreign Currency Translation
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0
Other comprehensive income (loss)				51
Issuance of class A shares of BIPC				(23)
Other items				0
Balance as				28		0
Non-controlling interest— BIPC exchangeable shares | Net Investment Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0
Other comprehensive income (loss)				(6)
Issuance of class A shares of BIPC				0
Other items				0
Balance as				(6)		0
Non-controlling interest— BIPC exchangeable shares | Cash Flow Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0
Other comprehensive income (loss)				22
Issuance of class A shares of BIPC				0
Other items				0
Balance as				22		0
Non-controlling interest— BIPC exchangeable shares | Marketable Securities
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0
Other comprehensive income (loss)				5
Issuance of class A shares of BIPC				0
Other items				0
Balance as				5		0
Non-controlling interest— BIPC exchangeable shares | Unrealized Actuarial Losses
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0
Other comprehensive income (loss)				(3)
Issuance of class A shares of BIPC				0
Other items				0
Balance as				(3)		0
Non-controlling interest— BIPC exchangeable shares | Equity accounted investments
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0
Other comprehensive income (loss)				(11)
Issuance of class A shares of BIPC				0
Other items				0
Balance as				(11)		0
Non-controlling interest— Exchange LP Units | Accumulated Other Comprehensive Income
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				5		4
Other comprehensive income (loss)				0		1
Other items				0
Balance as				5		5	4
Non-controlling interest— Exchange LP Units | Revaluation Surplus
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				3		2
Other comprehensive income (loss)				1		1
Other items				0
Balance as				4		3	2
Non-controlling interest— Exchange LP Units | Foreign Currency Translation
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				1		1
Other comprehensive income (loss)				(2)		0
Other items				0
Balance as				(1)		1	1
Non-controlling interest— Exchange LP Units | Net Investment Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0		0
Other comprehensive income (loss)				0		0
Other items				0
Balance as				0		0	0
Non-controlling interest— Exchange LP Units | Cash Flow Hedges
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				(1)		(1)
Other comprehensive income (loss)				1		0
Other items				0
Balance as				0		(1)	(1)
Non-controlling interest— Exchange LP Units | Marketable Securities
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0		0
Other comprehensive income (loss)				0		0
Other items				0
Balance as				0		0	0
Non-controlling interest— Exchange LP Units | Unrealized Actuarial Losses
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				0		0
Other comprehensive income (loss)				0		0
Other items				0
Balance as				0		0	0
Non-controlling interest— Exchange LP Units | Equity accounted investments
Disclosure of analysis of other comprehensive income by item [line items]
Balance as				2		2
Other comprehensive income (loss)				0		0
Other items				0
Balance as				$ 2		$ 2	$ 2
[1]	Refer to Note 1, Organization and Description of the Business.
[2]	Refer to Note 26, Partnership Capital.
[3]	Refer to Note 6, Acquisition of Businesses.
[4]	Refer to Note 27, Accumulated Other Comprehensive Income (Loss).

DISTRIBUTIONS - Disclosure of D

DISTRIBUTIONS - Disclosure of Dividends (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	12 Months Ended
		Mar. 31, 2020	Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018
Disclosure of classes of share capital [line items]
Partnership distributions	[1]		$ (1,083)		$ (978)	$ (878)
Partnership preferred distributions	[1]		(51)		(49)	(41)
Distributions			$ (1,134)		$ (1,027)	$ (919)
Partnership distributions (usd per share)		$ 0.5375
Preferred unitholders (in dollars per share)			$ 0.97		$ 0.98	$ 0.97
Non-controlling interest— BIPC exchangeable shares
Disclosure of classes of share capital [line items]
Partnership distributions			$ (66)	[1]	$ 0	$ 0
Partnership preferred distributions	[1]		$ (3)
Partnership distributions (usd per share)			$ 1.94		$ 1.81	$ 1.69
Non-controlling interest— Exchange LP Units
Disclosure of classes of share capital [line items]
Partnership distributions	[1]		$ (4)		$ (4)	$ (2)
Partnership distributions (usd per share)			$ 1.94		$ 1.81	$ 1.69
Limited Partners
Disclosure of classes of share capital [line items]
Partnership distributions	[1]		$ (588)		$ (575)	$ (520)
Partnership preferred distributions	[1]		$ (35)		$ (33)	$ (29)
Partnership distributions (usd per share)			$ 1.94		$ 1.81	$ 1.69
General partner
Disclosure of classes of share capital [line items]
Partnership distributions	[1]		$ (185)		$ (158)	$ (140)
Partnership distributions (usd per share)			$ 1.94		$ 1.81	$ 1.69
Non-Controlling Interest—Redeemable Partnership Units held by Brookfield
Disclosure of classes of share capital [line items]
Partnership distributions	[1]		$ (240)		$ (241)	$ (216)
Partnership preferred distributions	[1]		$ (13)		$ (16)	$ (12)
Partnership distributions (usd per share)			$ 1.94		$ 1.81	$ 1.69
[1]	Refer to Note 28, Distributions.

DISTRIBUTIONS - Narrative (Deta

DISTRIBUTIONS - Narrative (Details) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended	12 Months Ended
	Mar. 31, 2020$ / sharesshares	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jul. 01, 2020$ / shares	Jun. 30, 2020$ / shares
Disclosure of classes of share capital [line items]
Partnership distributions (usd per share)	$ 0.5375
Exchangeable shares issued as a result of special distribution | shares	46.3
Class A Preference Limited Partnership Units, Series 1
Disclosure of classes of share capital [line items]
Quarterly distribution rate (as a percent)					3.974%	4.50%
Quarterly distribution (usd per share)					$ 0.2484	$ 0.2813
Special General Partner
Disclosure of classes of share capital [line items]
Dividends recognised as incentive distributions to owners | $		$ 183	$ 158	$ 136

CONTINGENT ASSETS_& LIABILITI_2

CONTINGENT ASSETS & LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Contingent liability for guarantees
Disclosure of contingent liabilities [line items]
Contingent liabilities related to third parties	$ 249	$ 604

CONTRACTUAL COMMITMENTS - Addit

CONTRACTUAL COMMITMENTS - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of contingent liabilities [line items]
Contractual commitments	$ 5,750	$ 3,801
Asset management fee as percent per quarter	0.3125%
Asset management fee, percent	1.25%
Less than 1 year
Disclosure of contingent liabilities [line items]
Contractual capital commitments, maturity, percent	10.00%
1 to 5 years
Disclosure of contingent liabilities [line items]
Contractual capital commitments, maturity, percent	22.00%
Thereafter
Disclosure of contingent liabilities [line items]
Contractual capital commitments, maturity, percent	68.00%

RETIREMENT BENEFIT PLANS RETIRE

RETIREMENT BENEFIT PLANS RETIREMENT BENEFIT PLANS - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee Benefits [Abstract]
Benefit plans' expense	$ 38	$ 9	$ 2
Discount rates	1.70%	2.50%	4.50%
Rates of compensation	2.30%	2.80%	3.00%

RETIREMENT BENEFIT PLANS (Detai

RETIREMENT BENEFIT PLANS (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Employee Benefits [Abstract]
Plan assets	$ 833	$ 686
Less accrued benefit obligation	(1,164)	(851)
Accrued benefit liability	$ (331)	$ (165)

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details) - USD ($)	Nov. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Nov. 29, 2020
Disclosure of transactions between related parties [line items]
Director fees		$ 1,000,000	$ 1,000,000	$ 1,000,000
Asset management fee as percent per quarter		0.3125%
Asset management fee, percent		1.25%
Revolving credit facility with Brookfield
Disclosure of transactions between related parties [line items]
Credit facility, maximum borrowing capacity		$ 500,000,000
Non-recourse borrowings		$ 0	0
Service Provider
Disclosure of transactions between related parties [line items]
Asset management fee as percent per quarter		0.3125%
Asset management fee, percent		1.25%
Services received, related party transactions		$ 302,000,000	270,000,000	214,000,000
Amounts payable, related party transactions		89,000,000	76,000,000
Subsidiary of Common Parent (Brookfield)
Disclosure of transactions between related parties [line items]
Amounts payable, related party transactions		82,000,000	99,000,000
Amounts receivable, related party transactions		21,000,000	21,000,000
Subsidiary of Common Parent (Brookfield) | Brookfield Office Properties Inc.
Disclosure of transactions between related parties [line items]
Services received, related party transactions		1,000,000	15,000,000	5,000,000
Revenue from rendering of services, related party transactions		9,000,000	33,000,000	16,000,000
Right-of-use assets		12,000,000	11,000,000
Subsidiary of Common Parent (Brookfield) | Brookfield Business Partners LP | U.K. ports operation
Disclosure of transactions between related parties [line items]
Revenue from sale of goods, related party transactions		3,000,000	4,000,000	4,000,000
Subsidiary of Common Parent (Brookfield) | Brookfield Renewable Partners L.P.
Disclosure of transactions between related parties [line items]
Services received, related party transactions		1,000,000	52,000,000	11,000,000
Revenue from sale of goods, related party transactions		$ 0	3,000,000	1,000,000
Subsidiary of Common Parent (Brookfield) | Bottom of range
Disclosure of transactions between related parties [line items]
Amounts payable, related party transactions, interest rate		1.70%
Subsidiary of Common Parent (Brookfield) | Top of range
Disclosure of transactions between related parties [line items]
Amounts payable, related party transactions, interest rate		8.50%
Brookfield
Disclosure of transactions between related parties [line items]
Amounts receivable, related party transactions					$ 65,000,000
Deposit balance		$ 545,000,000	1,000,000
Earned interest on deposits		$ 1,000,000	$ 4,000,000	$ 0
Gain (loss) of derecognised financial assets at date of transfer	$ 0

DERIVATIVE FINANCIAL INSTRUME_3

DERIVATIVE FINANCIAL INSTRUMENTS - Notional Amount of Derivative Positions (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about hedging instruments [line items]
Notional amount	$ 14,743	$ 15,855
Foreign exchange contracts
Disclosure of detailed information about hedging instruments [line items]
Notional amount	3,274	4,626
Interest rates swaps and other
Disclosure of detailed information about hedging instruments [line items]
Notional amount	11,437	11,163
Commodity contracts
Disclosure of detailed information about hedging instruments [line items]
Notional amount	$ 32	$ 66

DERIVATIVE FINANCIAL INSTRUME_4

DERIVATIVE FINANCIAL INSTRUMENTS - Change in Fair Values of Derivative Instruments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about hedging instruments [line items]
Unrealized Gains on Derivative Financial Assets	$ 656
Unrealized Losses on Derivative Financial Liabilities	(1,059)
Net Change	(403)	$ (159)
Foreign exchange contracts
Disclosure of detailed information about hedging instruments [line items]
Unrealized Gains on Derivative Financial Assets	196
Unrealized Losses on Derivative Financial Liabilities	(409)
Net Change	(213)	(128)
Interest rates swaps and other
Disclosure of detailed information about hedging instruments [line items]
Unrealized Gains on Derivative Financial Assets	460
Unrealized Losses on Derivative Financial Liabilities	(633)
Net Change	(173)	(31)
Commodity contracts
Disclosure of detailed information about hedging instruments [line items]
Unrealized Gains on Derivative Financial Assets	0
Unrealized Losses on Derivative Financial Liabilities	(17)
Net Change	$ (17)	$ 0

DERIVATIVE FINANCIAL INSTRUME_5

DERIVATIVE FINANCIAL INSTRUMENTS - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about hedging instruments [line items]
Notional amount	$ 14,743	$ 15,855
Financial assets at fair value through profit or loss, category
Disclosure of detailed information about hedging instruments [line items]
Notional amount	2,706	1,702
Interest rate swaps, cross currency interest rate swaps and other
Disclosure of detailed information about hedging instruments [line items]
Notional amount	11,265	10,996
Interest rate swaps, cross currency interest rate swaps and other | Financial assets at fair value through profit or loss, category
Disclosure of detailed information about hedging instruments [line items]
Notional amount	779	53
Inflation linked swap contract | Financial assets at fair value through profit or loss, category
Disclosure of detailed information about hedging instruments [line items]
Notional amount	172	$ 167
Floating Interest Rate Derivatives
Disclosure of detailed information about hedging instruments [line items]
Notional amount	4,829
Bank bill swap rate
Disclosure of detailed information about hedging instruments [line items]
Notional amount	681
Floating Interest Rate Benchmarked Against CDOR
Disclosure of detailed information about hedging instruments [line items]
Notional amount	$ 1,533

DERIVATIVE FINANCIAL INSTRUME_6

DERIVATIVE FINANCIAL INSTRUMENTS - Notional Amount of Foreign Exchange Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 14,743	$ 15,855
Foreign exchange contracts
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	3,274	4,626
Foreign exchange contracts | British pounds
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 1,404	$ 2,882
Average Exchange Rate	131.00%	131.00%
Foreign exchange contracts | Canadian dollars
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 612	$ 4
Average Exchange Rate	75.00%	76.00%
Foreign exchange contracts | Australian dollars
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 609	$ 1,102
Average Exchange Rate	69.00%	73.00%
Foreign exchange contracts | Indian rupees
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 308	$ 0
Average Exchange Rate	1.30%	0.00%
Foreign exchange contracts | European Union euros
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 239	$ 365
Average Exchange Rate	121.00%	125.00%
Foreign exchange contracts | Chilean pesos
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 34	$ 242
Average Exchange Rate	0.13%	0.15%
Foreign exchange contracts | COP
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 28	$ 19
Average Exchange Rate	0.03%	0.03%
Foreign exchange contracts | Peruvian soles
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 12	$ 12
Average Exchange Rate	28.00%	29.00%
Foreign exchange contracts | Other
Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [line items]
Notional Amount (U.S. Dollars)	$ 28	$ 0
Average Exchange Rate	0.00%	0.00%

DERIVATIVE FINANCIAL INSTRUME_7

DERIVATIVE FINANCIAL INSTRUMENTS - Notional Amount of Derivative Instruments Fair Value Through Profit or Loss (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	$ 14,743	$ 15,855
Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	2,706	1,702
Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	12,037	14,153
Less than 1 year | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	974
Less than 1 year | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	867
1 to 5 years | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	1,732
1 to 5 years | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	6,591
Thereafter | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	0
Thereafter | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	4,579
Foreign exchange contracts
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	3,274	4,626
Foreign exchange contracts | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	1,723	1,416
Foreign exchange contracts | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	1,551	3,210
Foreign exchange contracts | Less than 1 year | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	867
Foreign exchange contracts | Less than 1 year | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	438
Foreign exchange contracts | 1 to 5 years | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	856
Foreign exchange contracts | 1 to 5 years | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	510
Foreign exchange contracts | Thereafter | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	0
Foreign exchange contracts | Thereafter | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	603
Interest rate swaps, cross currency interest rate swaps and other
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	11,265	10,996
Interest rate swaps, cross currency interest rate swaps and other | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	779	53
Interest rate swaps, cross currency interest rate swaps and other | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	10,486	10,943
Interest rate swaps, cross currency interest rate swaps and other | Less than 1 year | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	75
Interest rate swaps, cross currency interest rate swaps and other | Less than 1 year | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	429
Interest rate swaps, cross currency interest rate swaps and other | 1 to 5 years | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	704
Interest rate swaps, cross currency interest rate swaps and other | 1 to 5 years | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	6,081
Interest rate swaps, cross currency interest rate swaps and other | Thereafter | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	0
Interest rate swaps, cross currency interest rate swaps and other | Thereafter | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	3,976
Inflation linked swaps | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	172	167
Inflation linked swaps | Less than 1 year | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	0
Inflation linked swaps | 1 to 5 years | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	172
Inflation linked swaps | Thereafter | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	0
Commodity contracts
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	32	66
Commodity contracts | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	32	$ 66
Commodity contracts | Less than 1 year | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	32
Commodity contracts | 1 to 5 years | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	0
Commodity contracts | Thereafter | Fair value through profit or loss
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	$ 0

DERIVATIVE FINANCIAL INSTRUME_8

DERIVATIVE FINANCIAL INSTRUMENTS - Hedge Classification (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	$ 14,743	$ 15,855
Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	12,037	14,153
Effective Portion	(128)	(146)
Ineffective Portion	11	15
Cash flow hedges | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	11,089	10,943
Effective Portion	(160)	(33)
Ineffective Portion	9	(1)
Net investment hedges | Elected for hedge accounting
Disclosure of detailed information about hedging instruments [line items]
Notional Amount (U.S. Dollars)	948	3,210
Effective Portion	32	(113)
Ineffective Portion	$ 2	$ 16

FINANCIAL RISK MANAGEMENT FINAN

FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Apr. 14, 2020	Dec. 31, 2019
Disclosure of detailed information about borrowings [line items]
Debt in breach of asset-level financial covenants	$ 540,000,000
Percent of partnership debt in breach of asset-level financial covenants	2.30%
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	$ 4,305,000,000		$ 3,931,000,000
Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% change in value of investments on Equity	52,000,000
Impact of 10 Percent Change in Value of Investments on Profit Loss	32,000,000
Impact of 10% change in value of investments on Comprehensive Income	20,000,000
Marketable securities
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	526,000,000		142,000,000
Marketable securities | Market risk
Disclosure of nature and extent of risks arising from financial instruments [line items]
Financial assets	526,000,000		142,000,000
Corporate revolving credit facility
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity	1,975,000,000
Non-recourse borrowings	1,131,000,000		820,000,000
Letter of credit outstanding amount	63,000,000		54,000,000
Credit facility
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity	500,000,000
Non-recourse borrowings	0		$ 0
Syndicated Revolving Credit Facility
Disclosure of detailed information about borrowings [line items]
Credit facility, maximum borrowing capacity	$ 1,000,000,000	$ 1,000,000,000

FINANCIAL RISK MANAGEMENT FIN_2

FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Capital Structure (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financial Instruments [Abstract]
Corporate borrowings	$ 3,158	$ 2,475
Non-recourse borrowings	20,020	18,544
Subsidiary and corporate borrowings	23,178	21,019
Preferred shares	20	20
Cash and cash equivalents	(1,393)	(969)
Net debt	21,805	20,070
Total partnership capital	21,673	22,177	$ 14,668	$ 13,474
Total capital and net debt	$ 43,478	$ 42,247
Net debt to capitalization ratio	50.00%	48.00%

FINANCIAL RISK MANAGEMENT FIN_3

FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Liquidity (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Financial Instruments [Abstract]
Corporate cash and financial assets	$ 464	$ 273
Availability under committed credit facilities(2)	3,475	2,475
Draws on credit facility	(1,131)	(820)
Deposit from parent	(545)	0
Commitments under credit facility	(63)	(54)
Corporate liquidity	$ 2,200	$ 1,874

FINANCIAL RISK MANAGEMENT - Mat

FINANCIAL RISK MANAGEMENT - Maturity Analysis of Financial Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	$ 2,745	$ 1,873
Corporate borrowings	3,173	2,475
Non-recourse borrowings	20,177	18,676
Financial liabilities	3,374	2,173
Lease liabilities	4,858	2,795
Interest Expense:
Corporate borrowings	477	436
Non-recourse borrowings	6,226	5,620
Less than 1 year
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	2,346	1,626
Corporate borrowings	0	0
Non-recourse borrowings	1,052	1,405
Financial liabilities	696	327
Lease liabilities	279	223
Interest Expense:
Corporate borrowings	72	74
Non-recourse borrowings	853	715
1-2 years
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	27	29
Corporate borrowings	0	0
Non-recourse borrowings	881	1,019
Financial liabilities	1,138	293
Lease liabilities	247	194
Interest Expense:
Corporate borrowings	72	74
Non-recourse borrowings	811	660
Later than two years and not later than five years [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	71	31
Corporate borrowings	1,681	1,705
Non-recourse borrowings	8,336	7,110
Financial liabilities	350	1,080
Lease liabilities	647	475
Interest Expense:
Corporate borrowings	163	165
Non-recourse borrowings	1,970	1,762
5 plus years
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Accounts payable and other liabilities	301	187
Corporate borrowings	1,492	770
Non-recourse borrowings	9,908	9,142
Financial liabilities	1,190	473
Lease liabilities	3,685	1,903
Interest Expense:
Corporate borrowings	170	123
Non-recourse borrowings	$ 2,592	$ 2,483

FINANCIAL RISK MANAGEMENT FIN_4

FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Sensitivity Analysis for Interest Rate Risk (Details) - Interest rate risk - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10 bp decrease on Net income (loss)	$ 1	$ 1	$ 1
Impact of 10 bp increase on Net income (loss)	(1)	(1)	(1)
Impact of 10 bp decrease on Other comprehensive (loss) income	(1)	(2)	(2)
Impact of 10 bp increase on Other comprehensive (loss) income	$ 1	$ 2	$ 2

FINANCIAL RISK MANAGEMENT FIN_5

FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Currency Exposure (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Assets:
Current Assets	$ 3,711	$ 5,841
Non-current Assets	57,620	50,467
Total assets	61,331	56,308
Liabilities:
Current Liabilities	5,524	5,439
Non-current liabilities	34,134	28,692
Total liabilities	39,658	34,131
Non-controlling interest—in operating subsidiaries and preferred unitholders	15,084	15,048
Non-controlling interest—Redeemable Partnership Units held by Brookfield	1,687	2,039
Non-controlling interest—BIPC exchangeable shares	638
Non-controlling interest—Exchange LP	12	18
Net investment attributable to limited partners and general partner	4,252	5,072
USD
Assets:
Current Assets	805	1,232
Non-current Assets	14,313	14,594
Total assets	15,118	15,826
Liabilities:
Current Liabilities	1,875	1,345
Non-current liabilities	10,887	8,908
Total liabilities	12,762	10,253
Non-controlling interest—in operating subsidiaries and preferred unitholders	5,186	5,704
Non-controlling interest—Redeemable Partnership Units held by Brookfield	(725)	(37)
Non-controlling interest—BIPC exchangeable shares	(275)
Non-controlling interest—Exchange LP	(5)	0
Net investment attributable to limited partners and general partner	(1,825)	(94)
AUD
Assets:
Current Assets	314	1,914
Non-current Assets	4,042	5,488
Total assets	4,356	7,402
Liabilities:
Current Liabilities	446	1,530
Non-current liabilities	1,842	3,703
Total liabilities	2,288	5,233
Non-controlling interest—in operating subsidiaries and preferred unitholders	488	475
Non-controlling interest—Redeemable Partnership Units held by Brookfield	405	485
Non-controlling interest—BIPC exchangeable shares	153
Non-controlling interest—Exchange LP	3	4
Net investment attributable to limited partners and general partner	1,019	1,205
GBP
Assets:
Current Assets	471	430
Non-current Assets	8,939	7,195
Total assets	9,410	7,625
Liabilities:
Current Liabilities	877	749
Non-current liabilities	4,939	4,211
Total liabilities	5,816	4,960
Non-controlling interest—in operating subsidiaries and preferred unitholders	726	754
Non-controlling interest—Redeemable Partnership Units held by Brookfield	734	547
Non-controlling interest—BIPC exchangeable shares	278
Non-controlling interest—Exchange LP	5	5
Net investment attributable to limited partners and general partner	1,851	1,359
BRL
Assets:
Current Assets	420	456
Non-current Assets	5,210	6,889
Total assets	5,630	7,345
Liabilities:
Current Liabilities	214	211
Non-current liabilities	2,970	3,448
Total liabilities	3,184	3,659
Non-controlling interest—in operating subsidiaries and preferred unitholders	871	1,414
Non-controlling interest—Redeemable Partnership Units held by Brookfield	403	650
Non-controlling interest—BIPC exchangeable shares	153
Non-controlling interest—Exchange LP	3	6
Net investment attributable to limited partners and general partner	1,016	1,616
CLP
Assets:
Current Assets	126	95
Non-current Assets	834	821
Total assets	960	916
Liabilities:
Current Liabilities	125	68
Non-current liabilities	1,148	1,112
Total liabilities	1,273	1,180
Non-controlling interest—in operating subsidiaries and preferred unitholders	(335)	(320)
Non-controlling interest—Redeemable Partnership Units held by Brookfield	6	16
Non-controlling interest—BIPC exchangeable shares	2
Non-controlling interest—Exchange LP	0	0
Net investment attributable to limited partners and general partner	14	40
CAD
Assets:
Current Assets	492	316
Non-current Assets	9,334	8,541
Total assets	9,826	8,857
Liabilities:
Current Liabilities	602	456
Non-current liabilities	4,994	4,639
Total liabilities	5,596	5,095
Non-controlling interest—in operating subsidiaries and preferred unitholders	4,020	4,066
Non-controlling interest—Redeemable Partnership Units held by Brookfield	54	(87)
Non-controlling interest—BIPC exchangeable shares	20
Non-controlling interest—Exchange LP	0	(1)
Net investment attributable to limited partners and general partner	136	(216)
EUR
Assets:
Current Assets	145	23
Non-current Assets	903	764
Total assets	1,048	787
Liabilities:
Current Liabilities	24	24
Non-current liabilities	118	73
Total liabilities	142	97
Non-controlling interest—in operating subsidiaries and preferred unitholders	0	0
Non-controlling interest—Redeemable Partnership Units held by Brookfield	232	197
Non-controlling interest—BIPC exchangeable shares	88
Non-controlling interest—Exchange LP	2	2
Net investment attributable to limited partners and general partner	584	491
COP
Assets:
Current Assets	216	971
Non-current Assets	1,256	1,166
Total assets	1,472	2,137
Liabilities:
Current Liabilities	246	724
Non-current liabilities	478	314
Total liabilities	724	1,038
Non-controlling interest—in operating subsidiaries and preferred unitholders	636	957
Non-controlling interest—Redeemable Partnership Units held by Brookfield	29	41
Non-controlling interest—BIPC exchangeable shares	11
Non-controlling interest—Exchange LP	0	0
Net investment attributable to limited partners and general partner	72	101
PEN
Assets:
Current Assets	105	122
Non-current Assets	1,247	1,337
Total assets	1,352	1,459
Liabilities:
Current Liabilities	438	19
Non-current liabilities	212	683
Total liabilities	650	702
Non-controlling interest—in operating subsidiaries and preferred unitholders	591	638
Non-controlling interest—Redeemable Partnership Units held by Brookfield	28	34
Non-controlling interest—BIPC exchangeable shares	11
Non-controlling interest—Exchange LP	0	0
Net investment attributable to limited partners and general partner	72	85
INR
Assets:
Current Assets	573	231
Non-current Assets	10,979	3,143
Total assets	11,552	3,374
Liabilities:
Current Liabilities	620	265
Non-current liabilities	6,389	1,482
Total liabilities	7,009	1,747
Non-controlling interest—in operating subsidiaries and preferred unitholders	2,901	1,360
Non-controlling interest—Redeemable Partnership Units held by Brookfield	420	76
Non-controlling interest—BIPC exchangeable shares	159
Non-controlling interest—Exchange LP	3	1
Net investment attributable to limited partners and general partner	1,060	190
NZD & Other
Assets:
Current Assets	44	51
Non-current Assets	563	529
Total assets	607	580
Liabilities:
Current Liabilities	57	48
Non-current liabilities	157	119
Total liabilities	214	167
Non-controlling interest—in operating subsidiaries and preferred unitholders	0	0
Non-controlling interest—Redeemable Partnership Units held by Brookfield	101	117
Non-controlling interest—BIPC exchangeable shares	38
Non-controlling interest—Exchange LP	1	1
Net investment attributable to limited partners and general partner	$ 253	$ 295

FINANCIAL RISK MANAGEMENT FIN_6

FINANCIAL RISK MANAGEMENT FINANCIAL RISK MANAGEMENT - Sensitivity Analysis For Foreign Currency Risk (Details) - Foreign currency risk - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
AUD
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	$ 4	$ 4	$ (20)
Impact of 10% increase on Net income (loss)	(4)	(4)	20
Impact of 10% decrease on Partnership Capital	70	12
Impact of 10% increase on Partnership Capital	(70)	(12)
EUR
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	2	0	(19)
Impact of 10% increase on Net income (loss)	(2)	0	19
Impact of 10% decrease on Partnership Capital	14	0
Impact of 10% increase on Partnership Capital	(14)	0
GBP
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	5	7	(11)
Impact of 10% increase on Net income (loss)	(5)	(7)	11
Impact of 10% decrease on Partnership Capital	105	0
Impact of 10% increase on Partnership Capital	(105)	0
CLP
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	(1)	0	(3)
Impact of 10% increase on Net income (loss)	1	0	3
Impact of 10% decrease on Partnership Capital	(5)	(24)
Impact of 10% increase on Partnership Capital	5	24
COP
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	1	1	1
Impact of 10% increase on Net income (loss)	(1)	(1)	(1)
Impact of 10% decrease on Partnership Capital	8	2
Impact of 10% increase on Partnership Capital	(8)	(2)
BRL
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	15	18	10
Impact of 10% increase on Net income (loss)	(15)	(18)	(10)
Impact of 10% decrease on Partnership Capital	158	227
Impact of 10% increase on Partnership Capital	(158)	(227)
CAD
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	4	1	(2)
Impact of 10% increase on Net income (loss)	(4)	(1)	2
Impact of 10% decrease on Partnership Capital	1	0
Impact of 10% increase on Partnership Capital	(1)	0
PEN
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Partnership Capital	10	11
Impact of 10% increase on Partnership Capital	(10)	(11)
INR
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	(3)	(2)	(1)
Impact of 10% increase on Net income (loss)	3	2	1
Impact of 10% decrease on Partnership Capital	58	27
Impact of 10% increase on Partnership Capital	(58)	(27)
NZD & Other
Disclosure of nature and extent of risks arising from financial instruments [line items]
Impact of 10% decrease on Net income (loss)	(1)	0	0
Impact of 10% increase on Net income (loss)	$ 1	$ 0	$ 0

CAPITAL MANAGEMENT - Invested C

CAPITAL MANAGEMENT - Invested Capital (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of objectives, policies and processes for managing capital [line items]
Total partnership capital	$ 21,673	$ 22,177	$ 14,668	$ 13,474
Non-controlling interest - in operating subsidiaries	(13,954)	(14,113)
Deficit	2,752	2,048
Accumulated other comprehensive income	(731)	(705)
Ownership changes	(527)	(398)
Invested Capital	$ 9,213	$ 9,009	$ 8,156
Bottom of range
Disclosure of objectives, policies and processes for managing capital [line items]
Targeted returns on invested capital	12.00%
Top of range
Disclosure of objectives, policies and processes for managing capital [line items]
Targeted returns on invested capital	15.00%

CAPITAL MANAGEMENT - Changes in

CAPITAL MANAGEMENT - Changes in Invested Capital (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019
Changes in Invested capital [Roll Forward]
Opening balance	$ 9,009		$ 8,156
Issuance of preferred units and preferred shares, net of repurchases	195	[1]	72
Issuances of limited partnership units and redeemable partnership units, net of repurchases	9		781
Ending balance	9,213		9,009
Weighted Average Invested Capital	$ 9,067		$ 8,563
[1]	Refer to Note 26, Partnership Capital.

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Flow Statement [Abstract]
Interest paid	$ 985	$ 829	$ 507
Income taxes paid	172	179	427
Changes in non-cash working capital
Accounts receivable	284	42	176
Prepayments	(415)	(120)	5
Accounts payable and other	(89)	146	(305)
Changes in non-cash working capital, net	$ (220)	$ 68	$ (124)

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) $ in Millions	Mar. 08, 2021USD ($)	Mar. 02, 2021	Feb. 26, 2021USD ($)	Feb. 02, 2021USD ($)transaction
Disposal of major subsidiary
Disclosure of non-adjusting events after reporting period [line items]
Number of transactions | transaction				2
North American residential energy infrastructure operation | Disposal of major subsidiary
Disclosure of non-adjusting events after reporting period [line items]
Total consideration				$ 4,100
Net proceeds from disposition				$ 1,000
U.S. gas pipeline | Disposal of major subsidiary
Disclosure of non-adjusting events after reporting period [line items]
Total consideration	$ 410
Disposition of interest	13.00%
Jose Maria de Macedo de Eletricidade S.A. | Major business combination
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest in subsidiary		31.00%	15.00%
Assets recognized as of acquisition date			$ 500
Liabilities recognized as of acquisition date			295
Non-controlling interest in acquiree recognised at acquisition date			$ 140