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BORROWINGS AND LINES OF CREDIT - Narrative (Details) ¥ in Billions |  |  |  |  |  |  | 1 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 17, 2024 USD ($) | Jan. 02, 2024 USD ($) | Jan. 02, 2024 EUR (€) | May 19, 2023 USD ($) | Apr. 25, 2023 USD ($) | Apr. 25, 2023 EUR (€) | Jul. 25, 2022 JPY (¥) | Jul. 15, 2022 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jan. 02, 2024 EUR (€) | Nov. 30, 2023 USD ($) tranche | Nov. 30, 2023 EUR (€) tranche | May 19, 2023 EUR (€) | Apr. 25, 2023 EUR (€) | Jul. 15, 2022 JPY (¥)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of long-term debt |  |  |  |  |  |  |  |  |  | $ 2,555,000,000 | $ 6,000,000 |  |  |  |  |  |
Repayment of long-term debt |  |  |  |  |  |  |  |  |  | 3,542,000,000 | 12,000,000 |  |  |  |  |  |
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  | 0.10% |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured Debt | Bridge Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term |  | 60 days | 60 days |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured Debt | 364 Day Revolver |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term | 364 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  | $ 0 | 0 |  |  |  |  |  |  |
Unsecured Debt | 364 Day Revolver | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 0.10% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured Debt | Term Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance |  |  |  |  |  |  |  | $ 400,000,000 |  |  |  |  |  |  |  |  | ¥ 54
Capitalized deferred financing costs |  |  |  |  |  |  |  | $ 2,000,000 |  |  |  |  |  |  |  |  |
Debt instrument, term |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt | ¥ |  |  |  |  |  |  | ¥ 54 |  |  |  |  |  |  |  |  |  |
Unsecured Debt | Term Loan | Tokyo Term Risk Free Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 0.75% |  |  |  |  |  |  |  |  |
Line of Credit | Delayed Draw Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized deferred financing costs |  |  |  | $ 4,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized deferred financing costs |  |  |  | 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity |  |  |  | $ 2,000,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  |
Line of Credit | Commercial Paper |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  | 2,000,000,000 | 2,000,000,000 |  |  |  |  |  |  |
Short-term debt |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  |  |  |  |
USD-Denominated Notes, Issued November 2023 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,000,000,000 |  |  |  |
Debt instrument, number of tranches | tranche |  |  |  |  |  |  |  |  |  |  |  |  | 3 | 3 |  |  |
5.800% Notes due 2025 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance |  |  |  |  |  |  |  |  | $ 1,000,000,000 | $ 1,000,000,000 |  |  | $ 1,000,000,000 |  |  |  |
Interest rate |  |  |  |  |  |  |  |  | 5.80% | 5.80% |  |  | 5.80% | 5.80% |  |  |
Make-whole premium payment |  |  |  |  |  |  |  |  | $ 8,000,000 |  |  |  |  |  |  |  |
Unamortized deferred financing costs write-off |  |  |  |  |  |  |  |  | $ 4,000,000 |  |  |  |  |  |  |  |
5.900% Notes due 2034 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000,000 |  |  |  |
Interest rate |  |  |  |  |  |  |  |  | 5.90% | 5.90% |  |  | 5.90% | 5.90% |  |  |
6.200% Notes due 2054 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000,000 |  |  |  |
Interest rate |  |  |  |  |  |  |  |  | 6.20% | 6.20% |  |  | 6.20% | 6.20% |  |  |
Euro-Denominated Notes, Issued November 2023 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance | € |  |  |  |  |  |  |  |  |  |  |  |  |  | € 2,350,000,000 |  |  |
Debt instrument, number of tranches | tranche |  |  |  |  |  |  |  |  |  |  |  |  | 3 | 3 |  |  |
4.375%, Notes due 2025 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance | € |  |  |  |  |  |  |  |  |  |  |  |  |  | € 750,000,000 |  |  |
Interest rate |  |  |  |  |  |  |  |  | 4.375% | 4.375% |  |  | 4.375% | 4.375% |  |  |
4.125% Notes due 2028 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance | € |  |  |  |  |  |  |  |  |  |  |  |  |  | € 750,000,000 |  |  |
Interest rate |  |  |  |  |  |  |  |  | 4.125% | 4.125% |  |  | 4.125% | 4.125% |  |  |
4.500% Notes due 2032 | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance | € |  |  |  |  |  |  |  |  |  |  |  |  |  | € 850,000,000 |  |  |
Interest rate |  |  |  |  |  |  |  |  | 4.50% | 4.50% |  |  | 4.50% | 4.50% |  |  |
Term Loan | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized deferred financing costs |  |  |  |  |  |  |  |  |  |  |  |  | $ 51,000,000 |  |  |  |
Bridge Loan | Bridge Loan | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 0.10% | 0.10% |  |  |  |  |  |  |  |  |  |  |
Bridge Loan | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 8,200,000,000 |
Bridge Loan | Unsecured Debt | Bridge Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized deferred financing costs |  |  |  |  | $ 48,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt reduction | € |  |  | € 500,000,000 |  |  | € 7,700,000,000 |  |  |  |  |  |  |  |  |  |  |
Accumulated amortization, debt issuance costs |  |  |  |  | $ 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term |  | 60 days | 60 days |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bridge Term Loan Facility, USD-Denominated Tranche | Unsecured Debt | Bridge Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance |  | $ 349,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bridge Term Loan Facility, Euro-Denominated Tranche | Unsecured Debt | Bridge Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance | € |  |  |  |  |  |  |  |  |  |  |  | € 113,000,000 |  |  |  |  |
Bridge Term Loan Facility, Euro-Denominated Tranche | Line of Credit | Delayed Draw Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 1,150,000,000 |  |
Debt instrument, term |  |  |  | 18 months |  |  |  |  |  |  |  |  |  |  |  |  |
The Credit Agreement | Line of Credit | Delayed Draw Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,300,000,000 |  |
The Credit Agreement | Line of Credit | Delayed Draw Facility | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  | 0.10% |  |  |  |  |  |  |  |  |  |  |  |  |
Bridge Term Loan Facility, Euro-Denominated Tranche 2 | Line of Credit | Delayed Draw Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal balance | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 1,150,000,000 |  |
Debt instrument, term |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |
Project Financing Arrangements | Other Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of long-term debt |  |  |  |  |  |  |  |  |  | $ 20,000,000 | 6,000,000 |  |  |  |  |  |
Repayment of long-term debt |  |  |  |  |  |  |  |  |  | $ 6,000,000 | $ 12,000,000 |  |  |  |  |  |
VCS Business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total consideration |  | $ 14,157,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business combination, percentage of purchase price to be paid in equity |  | 20.00% | 20.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business combination, percentage of purchase price to be paid in cash |  | 80.00% | 80.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |

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