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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill The following table summarizes the carrying amount of goodwill by reportable segment for the years ended December 31, 2022 and 2021 (in millions):
US and UtilitiesSouth AmericaMCACEurasiaCorporate and OtherTotal
Balance as of December 31, 2021
Goodwill$3,127 $644 $16 $— $1 $3,788 
Accumulated impairment losses(2,611)— — — — (2,611)
Net balance516 644 16 — 1 1,177 
Impairment losses(133)(644)— — — (777)
Goodwill acquired during the year— — — — 3 3 
Goodwill derecognized during the year(40)— — — (1)(41)
Balance as of December 31, 2022
Goodwill3,087 644 16 — 3 3,750 
Accumulated impairment losses(2,744)(644)— — — (3,388)
Net balance$343 $— $16 $— $3 $362 
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets The following table summarizes the balances comprising Other intangible assets in the accompanying Consolidated Balance Sheets (in millions) as of the periods indicated:
December 31, 2022December 31, 2021
Gross BalanceAccumulated AmortizationNet BalanceGross BalanceAccumulated AmortizationNet Balance
Subject to Amortization
Internal-use software$582 $(307)$275 $457 $(279)$178 
Contracts342 (40)302 183 (48)135 
Project development rights (1)
991 (17)974 819 (8)811 
Emissions allowances (2)
37 — 37 18 — 18 
Concession rights207 (50)157 195 (33)162 
Other (3)
57 (20)37 111 (17)94 
Subtotal2,216 (434)1,782 1,783 (385)1,398 
Indefinite-Lived Intangible Assets
Land use rights42 — 42 28 — 28 
Water rights— — — 3 — 3 
Transmission rights16 — 16 19 — 19 
Other1 — 1 2 — 2 
Subtotal59 — 59 52 — 52 
Total$2,275 $(434)$1,841 $1,835 $(385)$1,450 
_____________________________
(1)Includes emission offset fee to the Air Quality Management District ("AQMD") in order to transfer emission offsets from retired legacy Southland units to the new CCGT.
(2)Acquired or purchased emissions allowances are finite-lived intangible assets that are expensed when utilized and included in net income for the year.
(3)Includes management rights, renewable energy credits and incentives, and other individually insignificant intangible assets.
Schedule of Acquired Intangible Assets By Major Class
The following tables summarize other intangible assets acquired during the periods indicated (in millions):
December 31, 2022AmountSubject to Amortization/Indefinite-LivedWeighted Average Amortization Period (in years)Amortization Method
Internal-use software$136 Subject to Amortization14Straight-line
Contracts196 Subject to Amortization23Straight-line
Project development rights67 Subject to Amortization4Straight-line
Emissions allowances35 Subject to AmortizationVarious As utilized
Land use rights13 Indefinite-LivedN/AN/A
Transmission rights— Indefinite-LivedN/AN/A
Other1 VariousN/AN/A
Total$448 
December 31, 2021Amount Subject to Amortization/Indefinite-LivedWeighted Average Amortization Period (in years)
Amortization
Method
Internal-use software$89 Subject to Amortization6Straight-line
Contracts35 Subject to Amortization12Straight-line
Project development rights667 Subject to Amortization35Straight-line
Emissions allowances22 Subject to AmortizationVariousAs utilized
Transmission rights— Indefinite-LivedN/AN/A
Concession rights (1)
7 Subject to Amortization12Straight-line
Other2 VariousN/AN/A
Total$822 
Schedule of Expected Amortization Expense
The following table summarizes the estimated amortization expense by intangible asset category for 2023 through 2027:
(in millions)20232024202520262027
Internal-use software$29 $28 $27 $26 $25 
Contracts20 17 16 16 16 
Concession rights17 16 16 16 16 
Other5 6 7 7 7 
Total$71 $67 $66 $65 $64