Investments and Fair Value Measurements - Schedule of Outstanding Derivative Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Derivative instruments designated as accounting hedges
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Notional amount	$ 6,975	$ 319
Derivative instruments not designated as accounting hedges
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Notional amount	1,939	1,213
Interest rate swaps \| Derivative instruments designated as accounting hedges
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Notional amount	4,661	319
Cross currency swaps \| Derivative instruments designated as accounting hedges
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Notional amount	2,314	0
Foreign exchange forward contracts \| Derivative instruments not designated as accounting hedges
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Notional amount	1,835	1,213
Power swaps \| Derivative instruments not designated as accounting hedges
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Notional amount	$ 104	$ 0

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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