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Debt - Commercial Paper (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
Debt - Commercial Paper (Details) - USD ($) $ in Millions	Feb. 09, 2026	Sep. 30, 2026	Sep. 30, 2026	Dec. 31, 2025
Short-Term Debt [Line Items]
Short-term borrowings		$ 390	$ 390	$ 0
Revolving Credit Facility \| 5-Year Revolving Credit Agreement \| Line of Credit
Short-Term Debt [Line Items]
Maximum borrowing capacity	$ 1,000	1,000	$ 1,000
Debt term	5 years		5 years
Commercial Paper
Short-Term Debt [Line Items]
Aggregate principal amount		1,000	$ 1,000
Short-term borrowings		$ 390	$ 390	$ 0
Weighted average interest rate (as a percent)		4.223%	4.223%
Decrease in outstanding amount		$ 60
Line of Credit \| Revolving Credit Facility \| 364-Day Revolving Credit Agreement
Short-Term Debt [Line Items]
Maximum borrowing capacity	$ 600	$ 600	$ 600
Debt term	364 days		364 days