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v3.26.1

Borrowings - Senior Notes (Details) - Unsecured debt - USD ($) | 12 Months Ended |
--- | --- | ---
Feb. 28, 2026 | Feb. 28, 2025
Schedule of Debt [Line Items] |  |
Percentage of outstanding principal amount as redemption price | 100.00% |
Senior notes |  |
Schedule of Debt [Line Items] |  |
Unsecured debt | $ 10,285,300,000 | $ 10,682,300,000
4.75% Senior Notes Due December 2025 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.75% |
Principal | $ 400,000,000.0 |
Unsecured debt | $ 0 | 399,500,000
3.70% Senior Notes Due December 2026 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 3.70% |
Principal | $ 600,000,000.0 |
Unsecured debt | $ 599,500,000 | 598,900,000
Basis points above adjusted treasury rate | 0.25% |
3.50% Senior Notes Due May 2027 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 3.50% |
Principal | $ 500,000,000.0 |
Unsecured debt | $ 499,300,000 | 498,800,000
Basis points above adjusted treasury rate | 0.20% |
4.50% Senior Notes Due May 2047 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.50% |
Principal | $ 500,000,000.0 |
Unsecured debt | $ 494,400,000 | 494,200,000
Basis points above adjusted treasury rate | 0.25% |
3.60% Senior Notes Due February 2028 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 3.60% |
Principal | $ 700,000,000.0 |
Unsecured debt | $ 698,600,000 | 697,900,000
Basis points above adjusted treasury rate | 0.15% |
4.10% Senior Notes Due February 2048 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.10% |
Principal | $ 600,000,000.0 |
Unsecured debt | $ 593,700,000 | 593,400,000
Basis points above adjusted treasury rate | 0.20% |
4.40% Senior Notes Due November 2025 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.40% |
Principal | $ 500,000,000.0 |
Unsecured debt | $ 0 | 499,500,000
4.65% Senior Notes Due November 2028 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.65% |
Principal | $ 500,000,000.0 |
Unsecured debt | $ 498,500,000 | 497,900,000
Basis points above adjusted treasury rate | 0.25% |
5.25% Senior Notes Due November 2048 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 5.25% |
Principal | $ 500,000,000.0 |
Unsecured debt | $ 494,300,000 | 494,100,000
Basis points above adjusted treasury rate | 0.30% |
3.15% Senior Notes Due August 2029 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 3.15% |
Principal | $ 800,000,000.0 |
Unsecured debt | $ 797,600,000 | 796,800,000
Basis points above adjusted treasury rate | 0.20% |
2.875% Senior Notes Due May 2030 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 2.875% |
Principal | $ 600,000,000.0 |
Unsecured debt | $ 597,400,000 | 596,800,000
Basis points above adjusted treasury rate | 0.35% |
3.75% Senior Notes Due May 2050 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 3.75% |
Principal | $ 600,000,000.0 |
Unsecured debt | $ 591,300,000 | 591,000,000.0
Basis points above adjusted treasury rate | 0.40% |
2.25% Senior Notes Due August 2031 |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 2.25% |
Principal | $ 1,000,000,000 |
Unsecured debt | $ 993,100,000 | 991,800,000
Basis points above adjusted treasury rate | 0.15% |
4.35% May 2022 Senior Notes |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.35% |
Principal | $ 600,000,000.0 |
Unsecured debt | $ 599,200,000 | 598,400,000
Basis points above adjusted treasury rate | 0.25% |
4.75% May 2022 Senior Notes |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.75% |
Principal | $ 700,000,000.0 |
Unsecured debt | $ 695,700,000 | 695,000,000.0
Basis points above adjusted treasury rate | 0.30% |
5.00% Feb 2023 Senior Notes |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 5.00% |
Principal | $ 500,000,000.0 |
Unsecured debt | $ 0 | 499,000,000.0
4.90% May 2023 Senior Notes |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.90% |
Principal | $ 750,000,000.0 |
Unsecured debt | $ 742,700,000 | 741,600,000
Basis points above adjusted treasury rate | 0.25% |
4.80% January 2024 Senior Notes |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.80% |
Principal | $ 400,000,000.0 |
Unsecured debt | $ 398,300,000 | 397,700,000
Basis points above adjusted treasury rate | 0.15% |
4.80% May 2025 Senior Notes |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.80% |
Principal | $ 500,000,000.0 |
Unsecured debt | $ 496,500,000 | 0
Basis points above adjusted treasury rate | 0.20% |
4.95% October 2025 Senior Notes |  |
Schedule of Debt [Line Items] |  |
Coupon rate of notes | 4.95% |
Principal | $ 500,000,000.0 |
Unsecured debt | $ 495,200,000 | $ 0
Basis points above adjusted treasury rate | 0.15% |

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