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FAIR VALUE OF FINANCIAL INSTRUMENTS
12 Months Ended
Dec. 31, 2020
Disclosure of detailed information about financial instruments [abstract]  
Disclosure of financial instruments [text block] FAIR VALUE OF FINANCIAL INSTRUMENTS
a)    Financial Instruments Classification
The following tables list the company’s financial instruments by their respective classification as at December 31, 2020 and 2019:
AS AT DEC. 31, 2020 (MILLIONS)Fair Value Through
Profit or Loss
Fair Value Through OCIAmortized CostTotal
Financial assets1
Cash and cash equivalents$— $— $9,933 $9,933 
Other financial assets
Government bonds356 2,295 — 2,651 
Corporate bonds1,094 2,148 357 3,599 
Fixed income securities and other1,079 1,191 — 2,270 
Common shares and warrants3,287 3,227 — 6,514 
Loans and notes receivable2
110 — 2,586 2,696 
5,926 8,861 2,943 17,730 
Accounts receivable and other3
1,766 — 11,906 13,672 
$7,692 $8,861 $24,782 $41,335 
Financial liabilities
Corporate borrowings$— $— $9,077 $9,077 
Non-recourse borrowings of managed entities
Property-specific borrowings— — 128,556 128,556 
Subsidiary borrowings— — 10,768 10,768 
— — 139,324 139,324 
Accounts payable and other2
5,889 — 35,228 41,117 
Subsidiary equity obligations1,457 — 2,242 3,699 
$7,346 $— $185,871 $193,217 
1.Financial assets include $9.7 billion of assets pledged as collateral.
2.Includes a shareholder loan of $500 million receivable from our U.S. gas pipeline.
3.Includes derivative instruments which are elected for hedge accounting, totaling $888 million included in accounts receivable and other and $2.4 billion included in accounts payable and other, for which changes in fair value are recorded in other comprehensive income.
AS AT DEC. 31, 2019 (MILLIONS)Fair Value Through
Profit or Loss
Fair Value Through OCIAmortized CostTotal
Financial assets1
Cash and cash equivalents$— $— $6,778 $6,778 
Other financial assets
Government bonds156 2,247 — 2,403 
Corporate bonds1,118 1,839 310 3,267 
Fixed income securities and other1,131 619 — 1,750 
Common shares and warrants1,791 1,398 — 3,189 
Loans and notes receivable2
55 — 1,804 1,859 
4,251 6,103 2,114 12,468 
Accounts receivable and other3
1,957 — 12,078 14,035 
$6,208 $6,103 $20,970 $33,281 
Financial liabilities
Corporate borrowings$— $— $7,083 $7,083 
Non-recourse borrowings of managed entities
Property-specific borrowings— — 127,869 127,869 
Subsidiary borrowings— — 8,423 8,423 
— — 136,292 136,292 
Accounts payable and other2
4,528 — 32,196 36,724 
Subsidiary equity obligations1,896 — 2,236 4,132 
$6,424 $— $177,807 $184,231 
1.Financial assets include $7.0 billion of assets pledged as collateral.
2.Includes a shareholder loan of $500 million receivable from our U.S. gas pipeline.
3.Includes derivative instruments which are elected for hedge accounting, totaling $950 million included in accounts receivable and other and $1.3 billion included in accounts payable and other, for which changes in fair value are recorded in other comprehensive income.

Gains or losses arising from changes in the fair value through profit or loss (“FVTPL”) financial assets are presented in the Consolidated Statements of Operations in the period in which they arise. Dividends from FVTPL and fair value through other comprehensive income (“FVTOCI”) financial assets are recognized in the Consolidated Statements of Operations when the company’s right to receive payment is established. Interest on FVTOCI financial assets is calculated using the effective interest method and reported in our Consolidated Statements of Operations.
FVTOCI debt and equity securities are recorded on the balance sheet at fair value with changes in fair value recorded through other comprehensive income. As at December 31, 2020, the unrealized gains and losses relating to the fair value of FVTOCI securities amounted to $916 million (2019 – $479 million) and $322 million (2019 – $108 million), respectively.
During the year ended December 31, 2020, $7 million (2019 – $3 million) of net deferred losses previously recognized in accumulated other comprehensive income were reclassified to net income as a result of the disposition or impairment of certain of our FVTOCI financial assets that are not equity instruments.
Included in cash and cash equivalents is $8.2 billion (2019 – $5.7 billion) of cash and $1.8 billion (2019 – $1.1 billion) of short-term deposits as at December 31, 2020.
b)    Carrying and Fair Value
The following table lists the company’s financial instruments by their respective classification as at December 31, 2020 and December 31, 2019:
20202019
AS AT DEC. 31 (MILLIONS)Carrying
Value
Fair
Value
Carrying
Value
Fair
Value
Financial assets
Cash and cash equivalents$9,933 $9,933 $6,778 $6,778 
Other financial assets
Government bonds2,651 2,651 2,403 2,403 
Corporate bonds3,599 3,599 3,267 3,267 
Fixed income securities and other2,270 2,270 1,750 1,750 
Common shares and warrants6,514 6,514 3,189 3,189 
Loans and notes receivable2,696 2,696 1,859 1,859 
17,730 17,730 12,468 12,468 
Accounts receivable and other13,672 13,672 14,035 14,035 
$41,335 $41,335 $33,281 $33,281 
Financial liabilities
Corporate borrowings$9,077 $10,540 $7,083 $7,933 
Non-recourse borrowings of managed entities
Property-specific borrowings128,556 131,099 127,869 129,728 
Subsidiary borrowings10,768 11,085 8,423 8,632 
139,324 142,184 136,292 138,360 
Accounts payable and other41,117 41,117 36,724 36,724 
Subsidiary equity obligations3,699 3,699 4,132 4,139 
$193,217 $197,540 $184,231 $187,156 
The current and non-current balances of other financial assets are as follows:
AS AT DEC. 31 (MILLIONS)20202019
Current$5,483 $3,605 
Non-current12,247 8,863 
Total$17,730 $12,468 
c)    Fair Value Hierarchy Levels
The following table categorizes financial assets and liabilities, which are carried at fair value, based upon the fair value hierarchy levels:
 20202019
AS AT DEC. 31 (MILLIONS)
Level 1
Level 2
Level 3
Level 1Level 2Level 3
Financial assets
Other financial assets
Government bonds$7 $2,644 $ $— $2,403 $— 
Corporate bonds192 2,764 286 — 2,682 275 
Fixed income securities and other867 912 491 419 851 480 
Common shares and warrants4,548 577 1,389 1,966 421 802 
Loans and notes receivables 42 68 — 51 
Accounts receivable and other50 1,581 135 1,737 219 
$5,664 $8,520 $2,369 $2,386 $8,145 $1,780 
Financial liabilities
Accounts payable and other$75 $5,090 $724 $93 $3,749 $686 
Subsidiary equity obligations 77 1,380 — 40 1,856 
$75 $5,167 $2,104 $93 $3,789 $2,542 
During the year ended December 31, 2020 and 2019, there were no transfers between Level 1, 2 or 3.
Fair values of financial instruments are determined by reference to quoted bid or ask prices, as appropriate. If 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 for instruments with similar characteristics and risk profiles or internal or external valuation models, such as option pricing models and discounted cash flow analysis, using observable market inputs.
The following table summarizes the valuation techniques and key inputs used in the fair value measurement of Level 2 financial instruments:
(MILLIONS)
Type of Asset/Liability
Carrying Value Dec. 31, 2020Valuation Techniques and Key Inputs
Derivative assets/Derivative liabilities (accounts receivable/accounts payable)$1,581 /Foreign currency forward contracts – discounted cash flow model – forward exchange rates (from observable forward exchange rates at the end of the reporting period) and discounted at credit adjusted rate
 
Interest rate contracts – discounted cash flow model – forward interest rates (from observable yield curves) and applicable credit spreads discounted at a credit adjusted rate
 
Energy derivatives – quoted market prices, or in their absence internal valuation models, corroborated with observable market data
(5,090)
Other financial assets6,939 Valuation models based on observable market data
Redeemable fund units (subsidiary equity obligations)(77)Aggregated market prices of underlying investments
Fair values determined using valuation models requiring the use of unobservable inputs (Level 3 financial assets and liabilities) include assumptions concerning the amount and timing of estimated future cash flows and discount rates. In determining those unobservable inputs, the company uses observable external market inputs such as interest rate yield curves, currency rates and price and rate volatilities, as applicable, to develop assumptions regarding those unobservable inputs.
The following table summarizes the valuation techniques and significant unobservable inputs used in the fair value measurement of Level 3 financial instruments:
(MILLIONS)
Type of Asset/Liability
Carrying Value Dec. 31, 2020
Valuation
Techniques
Significant
Unobservable Inputs
Relationship of Unobservable
Inputs to Fair Value
Fixed income securities and other$491 Discounted cash flows•  Future cash flows
Increases (decreases) in future cash flows increase (decrease) fair value
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value

Corporate bonds
286 Discounted cash flows•  Future cash flows
Increases (decreases) in future cash flows increase (decrease) fair value
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value
Common shares and warrants1,389 Discounted cash flows•  Future cash flows
Increases (decreases) in future cash flows increase (decrease) fair value
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value

Black-Scholes model•  Volatility
Increases (decreases) in volatility increase (decreases) fair value
•  Term to maturity
Increases (decreases) in term to maturity increase (decrease) fair value
Limited-life funds (subsidiary equity obligations)
(1,380)Discounted cash flows•  Future cash flows
Increases (decreases) in future cash flows increase (decrease) fair value
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value

•  Terminal capitalization rate
Increases (decreases) in terminal capitalization rate decrease (increase) fair value
•  Investment horizon
Increases (decreases) in the investment horizon decrease (increase) fair value
Derivative assets/Derivative liabilities (accounts receivable/payable)135 /  Discounted cash flows  •  Future cash flows  
Increases (decreases) in future cash flows increase (decrease) fair value
(724)
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value
The following table presents the changes in the balance of financial assets and liabilities classified as Level 3 for the years ended December 31, 2020 and 2019:
 20202019
AS AT AND FOR THE YEARS ENDED DEC. 31 (MILLIONS) Financial
Assets
Financial
Liabilities
Financial 
Assets 
Financial 
Liabilities 
Balance, beginning of year$1,780 $2,542 $795 $2,299 
Fair value changes in net income(92)(111)278 (27)
Fair value changes in other comprehensive income1
15 4 (10)
Additions, net of disposals666 (331)717 264 
Balance, end of year$2,369 $2,104 $1,780 $2,542 
1.Includes foreign currency translation.
The following table categorizes liabilities measured at amortized cost, but for which fair values are disclosed based upon the fair value hierarchy levels:
 20202019
AS AT DEC. 31, 2020 (MILLIONS)Level 1Level 2Level 3Level 1Level 2Level 3
Corporate borrowings$10,443 $97 $ $7,841 $92 $— 
Property-specific borrowings3,406 57,927 69,766 6,467 52,386 70,875 
Subsidiary borrowings7,825 3 3,257 6,111 299 2,222 
Subsidiary equity obligations 73 2,169 — 73 2,170 
Fair values of Level 2 and Level 3 liabilities measured at amortized cost but for which fair values are disclosed are determined using valuation techniques such as adjusted public pricing and discounted cash flows.
d)    Hedging Activities
The company uses derivatives and non-derivative financial instruments to manage or maintain exposures to interest, currency, credit and other market risks. Derivative financial instruments are recorded at fair value. For certain derivatives which are used to manage exposures, the company determines whether hedge accounting can be applied. Hedge accounting is applied when the derivative is designated as a hedge of a specific exposure and there is assurance that it will continue to be highly effective as a hedge based on an expectation of offsetting cash flows or fair value. 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.
i.    Cash Flow Hedges
The company uses the following cash flow hedges: energy derivative contracts to hedge the sale of power; interest rate swaps to hedge the variability in cash flows or future cash flows related to a variable rate asset or liability; and equity derivatives to hedge long-term compensation arrangements. For the year ended December 31, 2020, pre-tax net unrealized losses of $479 million (2019 – losses of $89 million) were recorded in other comprehensive income for the effective portion of the cash flow hedges. As at December 31, 2020, there was an unrealized derivative liability balance of $689 million relating to derivative contracts designated as cash flow hedges (2019 – $210 million).
ii.    Net Investment Hedges
The company uses foreign exchange contracts and foreign currency denominated debt instruments to manage its foreign currency exposures arising from net investments in foreign operations. For the year ended December 31, 2020, unrealized pre-tax net losses of $182 million (2019 – gains of $433 million) were recorded in other comprehensive income for the effective portion of hedges of net investments in foreign operations. As at December 31, 2020, there was an unrealized derivative liability balance of $868 million relating to derivative contracts designated as net investment hedges (2019 – asset balance of $551 million).
e)    Netting of Financial Instruments
Financial assets and liabilities are offset with the net amount reported in the Consolidated Balance Sheets where the company currently has a legally enforceable right to offset and there is an intention to settle on a net basis or realize the asset and settle the liability simultaneously.
The company enters into derivative transactions under International Swaps and Derivatives Association (“ISDA”) master netting agreements. In general, under such agreements the amounts owed by each counterparty on a single day are aggregated into a single net amount that is payable by one party to the other. The agreements provide the company with the legal and enforceable right to offset these amounts and accordingly the following balances are presented net in the consolidated financial statements:
 
Accounts Receivable
and Other
Accounts Payable
and Other
AS AT DEC. 31 (MILLIONS)2020201920202019
Gross amounts of financial instruments before netting$2,195 $2,380 $4,379 $2,853 
Gross amounts of financial instruments set-off in Consolidated Balance Sheets(429)(423)(351)(366)
Net amount of financial instruments in Consolidated Balance Sheets$1,766 $1,957 $4,028 $2,487 
FAIR VALUE OF FINANCIAL INSTRUMENTS FAIR VALUE OF FINANCIAL INSTRUMENTS
a)    Financial Instruments Classification
The following tables list the company’s financial instruments by their respective classification as at December 31, 2020 and 2019:
AS AT DEC. 31, 2020 (MILLIONS)Fair Value Through
Profit or Loss
Fair Value Through OCIAmortized CostTotal
Financial assets1
Cash and cash equivalents$— $— $9,933 $9,933 
Other financial assets
Government bonds356 2,295 — 2,651 
Corporate bonds1,094 2,148 357 3,599 
Fixed income securities and other1,079 1,191 — 2,270 
Common shares and warrants3,287 3,227 — 6,514 
Loans and notes receivable2
110 — 2,586 2,696 
5,926 8,861 2,943 17,730 
Accounts receivable and other3
1,766 — 11,906 13,672 
$7,692 $8,861 $24,782 $41,335 
Financial liabilities
Corporate borrowings$— $— $9,077 $9,077 
Non-recourse borrowings of managed entities
Property-specific borrowings— — 128,556 128,556 
Subsidiary borrowings— — 10,768 10,768 
— — 139,324 139,324 
Accounts payable and other2
5,889 — 35,228 41,117 
Subsidiary equity obligations1,457 — 2,242 3,699 
$7,346 $— $185,871 $193,217 
1.Financial assets include $9.7 billion of assets pledged as collateral.
2.Includes a shareholder loan of $500 million receivable from our U.S. gas pipeline.
3.Includes derivative instruments which are elected for hedge accounting, totaling $888 million included in accounts receivable and other and $2.4 billion included in accounts payable and other, for which changes in fair value are recorded in other comprehensive income.
AS AT DEC. 31, 2019 (MILLIONS)Fair Value Through
Profit or Loss
Fair Value Through OCIAmortized CostTotal
Financial assets1
Cash and cash equivalents$— $— $6,778 $6,778 
Other financial assets
Government bonds156 2,247 — 2,403 
Corporate bonds1,118 1,839 310 3,267 
Fixed income securities and other1,131 619 — 1,750 
Common shares and warrants1,791 1,398 — 3,189 
Loans and notes receivable2
55 — 1,804 1,859 
4,251 6,103 2,114 12,468 
Accounts receivable and other3
1,957 — 12,078 14,035 
$6,208 $6,103 $20,970 $33,281 
Financial liabilities
Corporate borrowings$— $— $7,083 $7,083 
Non-recourse borrowings of managed entities
Property-specific borrowings— — 127,869 127,869 
Subsidiary borrowings— — 8,423 8,423 
— — 136,292 136,292 
Accounts payable and other2
4,528 — 32,196 36,724 
Subsidiary equity obligations1,896 — 2,236 4,132 
$6,424 $— $177,807 $184,231 
1.Financial assets include $7.0 billion of assets pledged as collateral.
2.Includes a shareholder loan of $500 million receivable from our U.S. gas pipeline.
3.Includes derivative instruments which are elected for hedge accounting, totaling $950 million included in accounts receivable and other and $1.3 billion included in accounts payable and other, for which changes in fair value are recorded in other comprehensive income.

Gains or losses arising from changes in the fair value through profit or loss (“FVTPL”) financial assets are presented in the Consolidated Statements of Operations in the period in which they arise. Dividends from FVTPL and fair value through other comprehensive income (“FVTOCI”) financial assets are recognized in the Consolidated Statements of Operations when the company’s right to receive payment is established. Interest on FVTOCI financial assets is calculated using the effective interest method and reported in our Consolidated Statements of Operations.
FVTOCI debt and equity securities are recorded on the balance sheet at fair value with changes in fair value recorded through other comprehensive income. As at December 31, 2020, the unrealized gains and losses relating to the fair value of FVTOCI securities amounted to $916 million (2019 – $479 million) and $322 million (2019 – $108 million), respectively.
During the year ended December 31, 2020, $7 million (2019 – $3 million) of net deferred losses previously recognized in accumulated other comprehensive income were reclassified to net income as a result of the disposition or impairment of certain of our FVTOCI financial assets that are not equity instruments.
Included in cash and cash equivalents is $8.2 billion (2019 – $5.7 billion) of cash and $1.8 billion (2019 – $1.1 billion) of short-term deposits as at December 31, 2020.
b)    Carrying and Fair Value
The following table lists the company’s financial instruments by their respective classification as at December 31, 2020 and December 31, 2019:
20202019
AS AT DEC. 31 (MILLIONS)Carrying
Value
Fair
Value
Carrying
Value
Fair
Value
Financial assets
Cash and cash equivalents$9,933 $9,933 $6,778 $6,778 
Other financial assets
Government bonds2,651 2,651 2,403 2,403 
Corporate bonds3,599 3,599 3,267 3,267 
Fixed income securities and other2,270 2,270 1,750 1,750 
Common shares and warrants6,514 6,514 3,189 3,189 
Loans and notes receivable2,696 2,696 1,859 1,859 
17,730 17,730 12,468 12,468 
Accounts receivable and other13,672 13,672 14,035 14,035 
$41,335 $41,335 $33,281 $33,281 
Financial liabilities
Corporate borrowings$9,077 $10,540 $7,083 $7,933 
Non-recourse borrowings of managed entities
Property-specific borrowings128,556 131,099 127,869 129,728 
Subsidiary borrowings10,768 11,085 8,423 8,632 
139,324 142,184 136,292 138,360 
Accounts payable and other41,117 41,117 36,724 36,724 
Subsidiary equity obligations3,699 3,699 4,132 4,139 
$193,217 $197,540 $184,231 $187,156 
The current and non-current balances of other financial assets are as follows:
AS AT DEC. 31 (MILLIONS)20202019
Current$5,483 $3,605 
Non-current12,247 8,863 
Total$17,730 $12,468 
c)    Fair Value Hierarchy Levels
The following table categorizes financial assets and liabilities, which are carried at fair value, based upon the fair value hierarchy levels:
 20202019
AS AT DEC. 31 (MILLIONS)
Level 1
Level 2
Level 3
Level 1Level 2Level 3
Financial assets
Other financial assets
Government bonds$7 $2,644 $ $— $2,403 $— 
Corporate bonds192 2,764 286 — 2,682 275 
Fixed income securities and other867 912 491 419 851 480 
Common shares and warrants4,548 577 1,389 1,966 421 802 
Loans and notes receivables 42 68 — 51 
Accounts receivable and other50 1,581 135 1,737 219 
$5,664 $8,520 $2,369 $2,386 $8,145 $1,780 
Financial liabilities
Accounts payable and other$75 $5,090 $724 $93 $3,749 $686 
Subsidiary equity obligations 77 1,380 — 40 1,856 
$75 $5,167 $2,104 $93 $3,789 $2,542 
During the year ended December 31, 2020 and 2019, there were no transfers between Level 1, 2 or 3.
Fair values of financial instruments are determined by reference to quoted bid or ask prices, as appropriate. If 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 for instruments with similar characteristics and risk profiles or internal or external valuation models, such as option pricing models and discounted cash flow analysis, using observable market inputs.
The following table summarizes the valuation techniques and key inputs used in the fair value measurement of Level 2 financial instruments:
(MILLIONS)
Type of Asset/Liability
Carrying Value Dec. 31, 2020Valuation Techniques and Key Inputs
Derivative assets/Derivative liabilities (accounts receivable/accounts payable)$1,581 /Foreign currency forward contracts – discounted cash flow model – forward exchange rates (from observable forward exchange rates at the end of the reporting period) and discounted at credit adjusted rate
 
Interest rate contracts – discounted cash flow model – forward interest rates (from observable yield curves) and applicable credit spreads discounted at a credit adjusted rate
 
Energy derivatives – quoted market prices, or in their absence internal valuation models, corroborated with observable market data
(5,090)
Other financial assets6,939 Valuation models based on observable market data
Redeemable fund units (subsidiary equity obligations)(77)Aggregated market prices of underlying investments
Fair values determined using valuation models requiring the use of unobservable inputs (Level 3 financial assets and liabilities) include assumptions concerning the amount and timing of estimated future cash flows and discount rates. In determining those unobservable inputs, the company uses observable external market inputs such as interest rate yield curves, currency rates and price and rate volatilities, as applicable, to develop assumptions regarding those unobservable inputs.
The following table summarizes the valuation techniques and significant unobservable inputs used in the fair value measurement of Level 3 financial instruments:
(MILLIONS)
Type of Asset/Liability
Carrying Value Dec. 31, 2020
Valuation
Techniques
Significant
Unobservable Inputs
Relationship of Unobservable
Inputs to Fair Value
Fixed income securities and other$491 Discounted cash flows•  Future cash flows
Increases (decreases) in future cash flows increase (decrease) fair value
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value

Corporate bonds
286 Discounted cash flows•  Future cash flows
Increases (decreases) in future cash flows increase (decrease) fair value
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value
Common shares and warrants1,389 Discounted cash flows•  Future cash flows
Increases (decreases) in future cash flows increase (decrease) fair value
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value

Black-Scholes model•  Volatility
Increases (decreases) in volatility increase (decreases) fair value
•  Term to maturity
Increases (decreases) in term to maturity increase (decrease) fair value
Limited-life funds (subsidiary equity obligations)
(1,380)Discounted cash flows•  Future cash flows
Increases (decreases) in future cash flows increase (decrease) fair value
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value

•  Terminal capitalization rate
Increases (decreases) in terminal capitalization rate decrease (increase) fair value
•  Investment horizon
Increases (decreases) in the investment horizon decrease (increase) fair value
Derivative assets/Derivative liabilities (accounts receivable/payable)135 /  Discounted cash flows  •  Future cash flows  
Increases (decreases) in future cash flows increase (decrease) fair value
(724)
•  Discount rate
Increases (decreases) in discount rate decrease (increase) fair value
The following table presents the changes in the balance of financial assets and liabilities classified as Level 3 for the years ended December 31, 2020 and 2019:
 20202019
AS AT AND FOR THE YEARS ENDED DEC. 31 (MILLIONS) Financial
Assets
Financial
Liabilities
Financial 
Assets 
Financial 
Liabilities 
Balance, beginning of year$1,780 $2,542 $795 $2,299 
Fair value changes in net income(92)(111)278 (27)
Fair value changes in other comprehensive income1
15 4 (10)
Additions, net of disposals666 (331)717 264 
Balance, end of year$2,369 $2,104 $1,780 $2,542 
1.Includes foreign currency translation.
The following table categorizes liabilities measured at amortized cost, but for which fair values are disclosed based upon the fair value hierarchy levels:
 20202019
AS AT DEC. 31, 2020 (MILLIONS)Level 1Level 2Level 3Level 1Level 2Level 3
Corporate borrowings$10,443 $97 $ $7,841 $92 $— 
Property-specific borrowings3,406 57,927 69,766 6,467 52,386 70,875 
Subsidiary borrowings7,825 3 3,257 6,111 299 2,222 
Subsidiary equity obligations 73 2,169 — 73 2,170 
Fair values of Level 2 and Level 3 liabilities measured at amortized cost but for which fair values are disclosed are determined using valuation techniques such as adjusted public pricing and discounted cash flows.
d)    Hedging Activities
The company uses derivatives and non-derivative financial instruments to manage or maintain exposures to interest, currency, credit and other market risks. Derivative financial instruments are recorded at fair value. For certain derivatives which are used to manage exposures, the company determines whether hedge accounting can be applied. Hedge accounting is applied when the derivative is designated as a hedge of a specific exposure and there is assurance that it will continue to be highly effective as a hedge based on an expectation of offsetting cash flows or fair value. 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.
i.    Cash Flow Hedges
The company uses the following cash flow hedges: energy derivative contracts to hedge the sale of power; interest rate swaps to hedge the variability in cash flows or future cash flows related to a variable rate asset or liability; and equity derivatives to hedge long-term compensation arrangements. For the year ended December 31, 2020, pre-tax net unrealized losses of $479 million (2019 – losses of $89 million) were recorded in other comprehensive income for the effective portion of the cash flow hedges. As at December 31, 2020, there was an unrealized derivative liability balance of $689 million relating to derivative contracts designated as cash flow hedges (2019 – $210 million).
ii.    Net Investment Hedges
The company uses foreign exchange contracts and foreign currency denominated debt instruments to manage its foreign currency exposures arising from net investments in foreign operations. For the year ended December 31, 2020, unrealized pre-tax net losses of $182 million (2019 – gains of $433 million) were recorded in other comprehensive income for the effective portion of hedges of net investments in foreign operations. As at December 31, 2020, there was an unrealized derivative liability balance of $868 million relating to derivative contracts designated as net investment hedges (2019 – asset balance of $551 million).
e)    Netting of Financial Instruments
Financial assets and liabilities are offset with the net amount reported in the Consolidated Balance Sheets where the company currently has a legally enforceable right to offset and there is an intention to settle on a net basis or realize the asset and settle the liability simultaneously.
The company enters into derivative transactions under International Swaps and Derivatives Association (“ISDA”) master netting agreements. In general, under such agreements the amounts owed by each counterparty on a single day are aggregated into a single net amount that is payable by one party to the other. The agreements provide the company with the legal and enforceable right to offset these amounts and accordingly the following balances are presented net in the consolidated financial statements:
 
Accounts Receivable
and Other
Accounts Payable
and Other
AS AT DEC. 31 (MILLIONS)2020201920202019
Gross amounts of financial instruments before netting$2,195 $2,380 $4,379 $2,853 
Gross amounts of financial instruments set-off in Consolidated Balance Sheets(429)(423)(351)(366)
Net amount of financial instruments in Consolidated Balance Sheets$1,766 $1,957 $4,028 $2,487