Debt (Narrative) (Details)	1 Months Ended		12 Months Ended
	Jun. 30, 2025 USD ($) renewal_option	Apr. 30, 2025 USD ($)	Jan. 31, 2026 USD ($) note	Feb. 01, 2025 USD ($) note	Feb. 03, 2024 USD ($)	May 31, 2025 USD ($)
Debt Instrument [Line Items]
Payment of long-term debt			$ 700,000,000	$ 250,000,000	$ 0
Unsecured senior notes interest rate (percent)		4.60%
Senior Notes
Debt Instrument [Line Items]
Number of series notes | note			5	6
Senior Notes | Level 1
Debt Instrument [Line Items]
Unsecured senior notes estimated fair value			$ 1,500,000,000	$ 2,100,000,000
Unsecured Debt | Standby Letters of Credit
Debt Instrument [Line Items]
Amount outstanding under the revolving credit facility			$ 0
4.600% Senior Notes due 2025 | Senior Notes
Debt Instrument [Line Items]
Payment of long-term debt		$ 700,000,000
Unsecured senior notes interest rate (percent)			4.60%
2025 Credit Facility | Unsecured Debt | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity for revolving credit facility	$ 1,300,000,000
Number of renewal options (up to) | renewal_option	2
Renewal option, term	1 year
Option to increase credit facility, additional amount (up to)	$ 700,000,000
Borrowing capacity remaining			$ 1,300,000,000
2025 Credit Facility | Unsecured Debt | Standby Letters of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity for revolving credit facility	$ 300,000,000
Prior Unsecured Credit Facility | Unsecured Debt | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity for revolving credit facility						$ 1,300,000,000