Debt - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2024
Debt Instrument [Line Items]
Long-term debt fair value	$ 42,300	$ 42,000
Short-term debt	$ 6,693	$ 0
Commercial Paper
Debt Instrument [Line Items]
Short term debt, weighted average interest rate	5.40%
Commercial Paper | Maximum
Debt Instrument [Line Items]
Short term borrowings maturity	152 days
Commercial Paper | Minimum
Debt Instrument [Line Items]
Short term borrowings maturity	28 days