v3.23.2
Financial information by segment, Assets and liabilities by business sector (Details)
$ in Thousands, € in Millions
Jun. 30, 2023
USD ($)
Feb. 24, 2023
USD ($)
Feb. 24, 2023
EUR (€)
Dec. 31, 2022
USD ($)
Jun. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Assets allocated [Abstract]            
Contracted concessional, PP&E and other intangible assets $ 7,322,801     $ 7,483,259    
Investments carried under the equity method 255,547     260,031    
Other current financial assets 176,042     195,893    
Cash and cash equivalents (project companies) 486,844     600,990 $ 668,247 $ 622,689
Total assets 8,897,585     9,100,911    
Liabilities allocated [Abstract]            
Long-term and short-term project debt 4,438,261     4,553,052    
Grants and other liabilities 1,225,146     1,252,513    
Long-term and short-term corporate debt 1,051,193 $ 7,600 € 7 1,017,200    
Total liabilities 7,189,824     7,311,864    
Equity 1,707,761     1,789,047 $ 1,796,831 $ 1,748,605
Total liabilities and equity 8,897,585     9,100,911    
Renewable Energy [Member]            
Assets allocated [Abstract]            
Contracted concessional, PP&E and other intangible assets 5,894,092     6,035,091    
Investments carried under the equity method 193,293     203,420    
Other current financial assets 8,339     6,706    
Cash and cash equivalents (project companies) 293,016     392,577    
Total assets 6,388,740     6,637,794    
Liabilities allocated [Abstract]            
Long-term and short-term project debt 3,361,848     3,442,625    
Grants and other liabilities 1,184,601     1,211,878    
Total liabilities 4,546,449     4,654,503    
Efficient Natural Gas & Heat [Member]            
Assets allocated [Abstract]            
Contracted concessional, PP&E and other intangible assets 478,281     485,431    
Investments carried under the equity method 11,928     10,034    
Other current financial assets 92,092     116,366    
Cash and cash equivalents (project companies) 41,066     73,673    
Total assets 623,367     685,504    
Liabilities allocated [Abstract]            
Long-term and short-term project debt 422,702     440,999    
Grants and other liabilities 32,239     32,138    
Total liabilities 454,941     473,137    
Transmission Lines [Member]            
Assets allocated [Abstract]            
Contracted concessional, PP&E and other intangible assets 783,910     800,067    
Investments carried under the equity method 4,394     4,450    
Other current financial assets 30,662     30,582    
Cash and cash equivalents (project companies) 52,153     48,073    
Total assets 871,119     883,172    
Liabilities allocated [Abstract]            
Long-term and short-term project debt 571,993     582,689    
Grants and other liabilities 5,814     6,040    
Total liabilities 577,807     588,729    
Water [Member]            
Assets allocated [Abstract]            
Contracted concessional, PP&E and other intangible assets 166,518     162,670    
Investments carried under the equity method 45,932     42,128    
Other current financial assets 44,949     42,240    
Cash and cash equivalents (project companies) 26,606     25,498    
Total assets 284,005     272,536    
Liabilities allocated [Abstract]            
Long-term and short-term project debt 81,718     86,739    
Grants and other liabilities 2,492     2,457    
Total liabilities 84,210     89,196    
Allocated [Member]            
Assets allocated [Abstract]            
Contracted concessional, PP&E and other intangible assets 7,322,801     7,483,259    
Investments carried under the equity method 255,547     260,031    
Other current financial assets 176,042     195,893    
Cash and cash equivalents (project companies) 412,841     539,822    
Total assets 8,167,231     8,479,005    
Liabilities allocated [Abstract]            
Long-term and short-term project debt 4,438,261     4,553,052    
Grants and other liabilities 1,225,146     1,252,513    
Total liabilities 5,663,407     5,805,565    
Unallocated [Member]            
Assets allocated [Abstract]            
Other non-current assets 338,271     325,893    
Other current assets (including cash and cash equivalents at holding company level) 392,083     296,013    
Total assets 730,354     621,906    
Liabilities allocated [Abstract]            
Long-term and short-term corporate debt 1,051,193     1,017,200    
Other non-current liabilities 292,700     313,328    
Other current liabilities 182,524     175,771    
Total liabilities 1,526,417     1,506,299    
Equity 1,707,761     1,789,047    
Total liabilities and equity $ 3,234,178     $ 3,295,346