XML 70 R61.htm IDEA: XBRL DOCUMENT v3.24.3
Fair value measurement - Narrative (Details) - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Carrying value of long-term debt, including current portion $ 60,398 $ 64,613
Fixed-rate notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Aggregate fair value of long-term debt, including current portion 58,000 59,200
Carrying value of long-term debt, including current portion $ 58,600 $ 60,600