Annual report pursuant to Section 13 and 15(d)

Borrowings - Senior Notes (Details)

v3.24.1.u1
Borrowings - Senior Notes (Details) - Unsecured debt - USD ($)
 12 Months Ended
Feb. 29, 2024
Feb. 29, 2024
Feb. 28, 2023
Schedule of Debt [Line Items]      
Percentage of outstanding principal amount as redemption price   100.00%  
Basis points above adjusted treasury rate 0.50%    
Senior notes      
Schedule of Debt [Line Items]      
Unsecured debt $ 11,620,100,000 $ 11,620,100,000 $ 10,470,600,000
4.75% Senior Notes Due November 2024      
Schedule of Debt [Line Items]      
Coupon rate of notes 4.75% 4.75%  
Principal $ 400,000,000.0 $ 400,000,000.0  
Unsecured debt $ 399,500,000 $ 399,500,000 398,900,000
4.75% Senior Notes Due December 2025      
Schedule of Debt [Line Items]      
Coupon rate of notes 4.75% 4.75%  
Principal $ 400,000,000.0 $ 400,000,000.0  
Unsecured debt $ 398,800,000 $ 398,800,000 398,200,000
3.70% Senior Notes Due December 2026      
Schedule of Debt [Line Items]      
Coupon rate of notes 3.70% 3.70%  
Principal $ 600,000,000.0 $ 600,000,000.0  
Unsecured debt $ 598,300,000 $ 598,300,000 597,700,000
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% 3.50%  
Principal $ 500,000,000.0 $ 500,000,000.0  
Unsecured debt $ 498,200,000 $ 498,200,000 497,700,000
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% 4.50%  
Principal $ 500,000,000.0 $ 500,000,000.0  
Unsecured debt $ 493,900,000 $ 493,900,000 493,600,000
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% 3.60%  
Principal $ 700,000,000.0 $ 700,000,000.0  
Unsecured debt $ 697,100,000 $ 697,100,000 696,400,000
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% 4.10%  
Principal $ 600,000,000.0 $ 600,000,000.0  
Unsecured debt $ 593,200,000 $ 593,200,000 592,900,000
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% 4.40%  
Principal $ 500,000,000.0 $ 500,000,000.0  
Unsecured debt $ 498,800,000 $ 498,800,000 498,000,000.0
Basis points above adjusted treasury rate   0.20%  
4.65% Senior Notes Due November 2028      
Schedule of Debt [Line Items]      
Coupon rate of notes 4.65% 4.65%  
Principal $ 500,000,000.0 $ 500,000,000.0  
Unsecured debt $ 497,300,000 $ 497,300,000 496,800,000
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% 5.25%  
Principal $ 500,000,000.0 $ 500,000,000.0  
Unsecured debt $ 493,800,000 $ 493,800,000 493,600,000
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% 3.15%  
Principal $ 800,000,000.0 $ 800,000,000.0  
Unsecured debt $ 796,100,000 $ 796,100,000 795,400,000
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% 2.875%  
Principal $ 600,000,000.0 $ 600,000,000.0  
Unsecured debt $ 596,200,000 $ 596,200,000 595,500,000
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% 3.75%  
Principal $ 600,000,000.0 $ 600,000,000.0  
Unsecured debt $ 590,600,000 $ 590,600,000 590,300,000
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% 2.25%  
Principal $ 1,000,000,000 $ 1,000,000,000  
Unsecured debt $ 990,500,000 $ 990,500,000 989,200,000
Basis points above adjusted treasury rate   0.15%  
3.60% May 2022 Senior Notes      
Schedule of Debt [Line Items]      
Coupon rate of notes 3.60% 3.60%  
Principal $ 550,000,000.0 $ 550,000,000.0  
Unsecured debt $ 549,800,000 $ 549,800,000 548,500,000
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% 4.35%  
Principal $ 600,000,000.0 $ 600,000,000.0  
Unsecured debt $ 597,800,000 $ 597,800,000 597,100,000
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% 4.75%  
Principal $ 700,000,000.0 $ 700,000,000.0  
Unsecured debt $ 694,400,000 $ 694,400,000 693,700,000
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% 5.00%  
Principal $ 500,000,000.0 $ 500,000,000.0  
Unsecured debt $ 497,900,000 $ 497,900,000 497,100,000
4.90% May 2023 Senior Notes      
Schedule of Debt [Line Items]      
Coupon rate of notes 4.90% 4.90%  
Principal $ 750,000,000.0 $ 750,000,000.0  
Unsecured debt $ 740,700,000 $ 740,700,000 0
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% 4.80%  
Principal $ 400,000,000.0 $ 400,000,000.0  
Unsecured debt $ 397,200,000 $ 397,200,000 $ 0
Basis points above adjusted treasury rate   0.15%