Debt - Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total debt	$ 32,056	$ 32,003
Estimated fair value(a)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total debt	31,694	31,966
Estimated fair value(a) \| Capital Trust I \| Trust I preferred securities, 4.75%, due March 2028(c)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Convertible debt	$ 217	$ 217

Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

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+ Details

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

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