Short-Term Borrowings and Long-Term Debt - Schedule of Short-term Borrowings (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024
Line of Credit Facility [Line Items]
Total short-term borrowings		$ 960	$ 479
Weighted average interest rate (in percent)		3.02%	3.07%
Debt instrument, variable interest rate, type [extensible enumeration]		Term Secured Overnight Financing Rate (Term SOFR) [Member]
Revolving Credit Facility | Credit agreement | Line of credit
Line of Credit Facility [Line Items]
Borrowing limit	$ 1,500
Total short-term borrowings		$ 0
Line of credit
Line of Credit Facility [Line Items]
Borrowing limit		2,568
Total principal short-term borrowings		963	$ 482
Less: unamortized discounts		(3)	(3)
Total short-term borrowings		960	479
Line of credit | January 2026 - November 2026
Line of Credit Facility [Line Items]
Borrowing limit		1,068
Total principal short-term borrowings		963	482
Line of credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Borrowing limit		1,500
Total principal short-term borrowings		$ 0	$ 0
Minimum | Revolving Credit Facility | Credit agreement | Line of credit
Line of Credit Facility [Line Items]
Variable interest rate (in percent)	0.75%
Minimum | Line of credit | January 2026 - November 2026
Line of Credit Facility [Line Items]
Interest rate (%)		2.67%
Minimum | Line of credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Variable interest rate (in percent)		0.75%
Maximum | Revolving Credit Facility | Credit agreement | Line of credit
Line of Credit Facility [Line Items]
Variable interest rate (in percent)	1.25%
Maximum | Line of credit | January 2026 - November 2026
Line of Credit Facility [Line Items]
Interest rate (%)		4.87%
Maximum | Line of credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Variable interest rate (in percent)		1.25%