Borrowing Arrangements - Narrative (Details)	1 Months Ended					6 Months Ended
	Nov. 30, 2022 USD ($)	Oct. 31, 2021 USD ($)	Jan. 31, 2020 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2015 USD ($)	Jul. 31, 2023 USD ($)
Senior Notes
Debt Instrument [Line Items]
Debt redemption price, percentage of principle amount						101.00%
2021 Notes | Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount		$ 1,000,000,000				$ 1,000,000,000
Stated interest rate		2.40%
Unamortized discount		$ 3,000,000
Debt issuance costs		9,000,000
Proceeds from debt, net of issuance costs		$ 988,000,000
2020 Notes | Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount			$ 500,000,000			500,000,000
Stated interest rate			2.85%
Unamortized discount			$ 1,000,000
Debt issuance costs			5,000,000
Proceeds from debt, net of issuance costs			494,000,000
2015 Notes | Senior Notes
Debt Instrument [Line Items]
Repayments of debt			$ 450,000,000
2017 Notes due in 2027 | Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount				$ 500,000,000
Stated interest rate				3.50%
Unamortized discount				$ 3,000,000
Debt issuance costs				5,000,000
Proceeds from debt, net of issuance costs				492,000,000
2017 Notes | Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount						500,000,000
Repayments of debt				$ 400,000,000
2015 Notes | Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount					$ 300,000,000	300,000,000
Stated interest rate					4.375%
Unamortized discount					$ 1,000,000
Debt issuance costs					3,000,000
Proceeds from debt, net of issuance costs					$ 296,000,000
Revolving Credit Facility | The Credit Agreement
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,500,000,000
Line of credit facility, increase limit	$ 2,000,000,000
Debt covenant, interest coverage ratio, minimum	3.50
Debt covenant, leverage ratio, maximum	4.00
Line of credit facility, outstanding borrowings						$ 0
Revolving Credit Facility | The Credit Agreement | Minimum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate						0.00%
Revolving Credit Facility | The Credit Agreement | Minimum | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate						0.785%
Revolving Credit Facility | The Credit Agreement | Maximum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate						0.375%
Revolving Credit Facility | The Credit Agreement | Maximum | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate						1.375%