XML 49 R38.htm IDEA: XBRL DOCUMENT v3.25.1
Fair Value Disclosures - Narrative (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Debt Instrument [Line Items]    
Carrying value of long-term debt portfolio $ 19,432 $ 17,400
Level 2    
Debt Instrument [Line Items]    
Estimated fair value of long-term debt portfolio $ 17,965 $ 16,234