Borrowing Arrangements - Schedule of Outstanding Borrowings (Details) - USD ($) $ in Millions	1 Months Ended
	Jun. 30, 2025	Jan. 31, 2026
Debt Instrument [Line Items]
Total principal outstanding		$ 2,500
Senior Notes
Debt Instrument [Line Items]
Total principal outstanding, principal outstanding		2,500
Less unamortized debt discount and issuance costs		17
Total principal outstanding		$ 2,483
Senior Notes | 5.30% Senior Notes due June 15, 2035
Debt Instrument [Line Items]
Stated interest rate		5.30%
Total principal outstanding, principal outstanding		$ 500
Total principal outstanding, fair value		$ 514
Senior Notes | 2.40% Senior Notes due December 15, 2031
Debt Instrument [Line Items]
Stated interest rate		2.40%
Total principal outstanding, principal outstanding		$ 1,000
Total principal outstanding, fair value		$ 889
Senior Notes | 2.85% Senior Notes due January 15, 2030
Debt Instrument [Line Items]
Stated interest rate		2.85%
Total principal outstanding, principal outstanding		$ 500
Total principal outstanding, fair value		$ 473
Senior Notes | 3.50% Senior Notes due June 15, 2027
Debt Instrument [Line Items]
Stated interest rate		3.50%
Total principal outstanding, principal outstanding		$ 500
Total principal outstanding, fair value		$ 496
Senior Notes | 4.375% Senior Notes Due 2025
Debt Instrument [Line Items]
Stated interest rate	4.375%
Repayments of debt	$ 300