XML 62 R51.htm IDEA: XBRL DOCUMENT v3.25.2
Credit and Other Debt Agreements - Summary of Corporate and Other Debt (Detail) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Debt Instrument [Line Items]    
Total corporate and other debt $ 13,030.2 $ 13,298.2
Less unamortized debt acquisition costs on Senior Notes and Note Purchase Agreements (85.5) (90.1)
Less unamortized discount on Bonds Payable (49.6) (51.0)
Net corporate and other debt 12,895.1 13,157.1
Periodic payments of interest and principal, expires April 3, 2030    
Debt Instrument [Line Items]    
Total corporate and other debt 0.0 0.0
Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt 3,323.0 3,523.0
Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt 9,550.0 9,550.0
Semi-annual payments of interest, fixed rate of 4.60%, balloon due December 15, 2027 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 750.0 $ 750.0
Interest rate 4.60% 4.60%
Semi-annual payments of interest, fixed rate of 4.85%, balloon due December 15, 2029 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 750.0 $ 750.0
Interest rate 4.85% 4.85%
Semi-annual payments of interest, fixed rate of 2.40%, balloon due November 9, 2031 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 400.0 $ 400.0
Interest rate 2.40% 2.40%
Semi-annual payments of interest, fixed rate of 5.00%, balloon due February 15, 2032 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 500.0 $ 500.0
Interest rate 5.00% 5.00%
Semi-annual payments of interest, fixed rate of 5.50%, balloon due March 2, 2033 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 350.0 $ 350.0
Interest rate 5.50% 5.50%
Semi-annual payments of interest, fixed rate of 6.50%, balloon due February 15, 2034 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 400.0 $ 400.0
Interest rate 6.50% 6.50%
Semi-annual payments of interest, fixed rate of 5.45%, balloon due July 15, 2034 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 500.0 $ 500.0
Interest rate 5.45% 5.45%
Semi-annual payments of interest, fixed rate of 5.15%, balloon due February 15, 2035 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 1,500.0 $ 1,500.0
Interest rate 5.15% 5.15%
Semi-annual payments of interest, fixed rate of 3.50%, balloon due May 20, 2051 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 850.0 $ 850.0
Interest rate 3.50% 3.50%
Semi-annual payments of interest, fixed rate of 3.05%, balloon due March 9, 2052 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 350.0 $ 350.0
Interest rate 3.05% 3.05%
Semi-annual payments of interest, fixed rate of 5.75%, balloon due March 2, 2053 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 600.0 $ 600.0
Interest rate 5.75% 5.75%
Semi-annual payments of interest, fixed rate of 6.75%, balloon due February 15, 2054 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 600.0 $ 600.0
Interest rate 6.75% 6.75%
Semi-annual payments of interest, fixed rate of 5.75%, balloon due July 15, 2054 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 500.0 $ 500.0
Interest rate 5.75% 5.75%
Semi-annual payments of interest, fixed rate of 5.55%, balloon due February 15, 2055 | Senior Notes:    
Debt Instrument [Line Items]    
Total corporate and other debt $ 1,500.0 $ 1,500.0
Interest rate 5.55% 5.55%
Semi-annual payments of interest, fixed rate of 4.31%, balloon due June 24, 2025 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 0.0 $ 200.0
Interest rate 4.31% 4.31%
Semi-annual payments of interest, fixed rate of 4.85%, balloon due February 13, 2026 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 140.0 $ 140.0
Interest rate 4.85% 4.85%
Semi-annual payments of interest, fixed rate of 4.73%, balloon due February 27, 2026 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 175.0 $ 175.0
Interest rate 4.73% 4.73%
Semi-annual payments of interest, fixed rate of 4.40%, balloon due June 2, 2026 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 175.0 $ 175.0
Interest rate 4.40% 4.40%
Semi-annual payments of interest, fixed rate of 4.36%, balloon due June 24, 2026 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 150.0 $ 150.0
Interest rate 4.36% 4.36%
Semi-annual payments of interest, fixed rate of 3.75%, balloon due January 30, 2027 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 30.0 $ 30.0
Interest rate 3.75% 3.75%
Semi-annual payments of interest, fixed rate of 4.09%, balloon due June 27, 2027 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 125.0 $ 125.0
Interest rate 4.09% 4.09%
Semi-annual payments of interest, fixed rate of 4.09%, balloon due August 2, 2027 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 125.0 $ 125.0
Interest rate 4.09% 4.09%
Semi-annual payments of interest, fixed rate of 4.14%, balloon due August 4, 2027 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 98.0 $ 98.0
Interest rate 4.14% 4.14%
Semi-annual payments of interest, fixed rate of 3.46%, balloon due December 1, 2027 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 100.0 $ 100.0
Interest rate 3.46% 3.46%
Semi-annual payments of interest, fixed rate of 4.55%, balloon due June 2, 2028 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 75.0 $ 75.0
Interest rate 4.55% 4.55%
Semi-annual payments of interest, fixed rate of 4.34%, balloon due June 13, 2028 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 125.0 $ 125.0
Interest rate 4.34% 4.34%
Semi-annual payments of interest, fixed rate of 5.04%, balloon due February 13, 2029 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 100.0 $ 100.0
Interest rate 5.04% 5.04%
Semi-annual payments of interest, fixed rate of 4.98%, balloon due February 27, 2029 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 100.0 $ 100.0
Interest rate 4.98% 4.98%
Semi-annual payments of interest, fixed rate of 4.19%, balloon due June 27, 2029 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 50.0 $ 50.0
Interest rate 4.19% 4.19%
Semi-annual payments of interest, fixed rate of 4.19%, balloon due August 2, 2029 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 50.0 $ 50.0
Interest rate 4.19% 4.19%
Semi-annual payments of interest, fixed rate of 3.48%, balloon due December 2, 2029 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 50.0 $ 50.0
Interest rate 3.48% 3.48%
Semi-annual payments of interest, fixed rate of 3.99%, balloon due January 30, 2030 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 341.0 $ 341.0
Interest rate 3.99% 3.99%
Semi-annual payments of interest, fixed rate of 4.44%, balloon due June 13, 2030 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 125.0 $ 125.0
Interest rate 4.44% 4.44%
Semi-annual payments of interest, fixed rate of 5.14%, balloon due March 13, 2031 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 180.0 $ 180.0
Interest rate 5.14% 5.14%
Semi-annual payments of interest, fixed rate of 4.70%, balloon due June 2, 2031 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 25.0 $ 25.0
Interest rate 4.70% 4.70%
Semi-annual payments of interest, fixed rate of 4.09%, balloon due January 30, 2032 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 69.0 $ 69.0
Interest rate 4.09% 4.09%
Semi-annual payments of interest, fixed rate of 4.34%, balloon due June 27, 2032 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 75.0 $ 75.0
Interest rate 4.34% 4.34%
Semi-annual payments of interest, fixed rate of 4.34%, balloon due August 2, 2032 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 75.0 $ 75.0
Interest rate 4.34% 4.34%
Semi-annual payments of interest, fixed rate of 4.59%, balloon due June 13, 2033 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 125.0 $ 125.0
Interest rate 4.59% 4.59%
Semi-annual payments of interest, fixed rate of 5.29%, balloon due March 13, 2034 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 40.0 $ 40.0
Interest rate 5.29% 5.29%
Semi-annual payments of interest, fixed rate of 4.48%, balloon due June 12, 2034 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 175.0 $ 175.0
Interest rate 4.48% 4.48%
Semi-annual payments of interest, fixed rate of 4.24%, balloon due January 30, 2035 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 79.0 $ 79.0
Interest rate 4.24% 4.24%
Semi-annual payments of interest, fixed rate of 2.44%, balloon due February 10, 2036 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 100.0 $ 100.0
Interest rate 2.44% 2.44%
Semi-annual payments of interest, fixed rate of 2.46%, balloon due May 5, 2036 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 75.0 $ 75.0
Interest rate 2.46% 2.46%
Semi-annual payments of interest, fixed rate of 4.69%, balloon due June 13, 2038 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 75.0 $ 75.0
Interest rate 4.69% 4.69%
Semi-annual payments of interest, fixed rate of 5.45%, balloon due March 13, 2039 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 40.0 $ 40.0
Interest rate 5.45% 5.45%
Semi-annual payments of interest, fixed rate of 4.49%, balloon due January 30, 2040 | Note Purchase Agreements    
Debt Instrument [Line Items]    
Total corporate and other debt $ 56.0 $ 56.0
Interest rate 4.49% 4.49%
Premium Financing Debt Facility - expires October 31, 2026: | Premium Financing Debt Facility    
Debt Instrument [Line Items]    
Total corporate and other debt $ 157.2 $ 225.2
AUD denominated tranche, interbank rates plus 1.400% | AUD Denominated Tranche | Facility B | Premium Financing Debt Facility    
Debt Instrument [Line Items]    
Total corporate and other debt $ 146.3 $ 218.2
Interest rate 1.40% 1.40%
NZD denominated tranche, interbank rates plus 1.850% | NZD Denominated Tranche | Facility B | Premium Financing Debt Facility    
Debt Instrument [Line Items]    
Total corporate and other debt $ 0.0 $ 0.0
Interest rate 1.85% 1.85%
AUD denominated tranche, interbank rates plus 0.830% | AUD Denominated Tranche | Facility C and D | Premium Financing Debt Facility    
Debt Instrument [Line Items]    
Total corporate and other debt $ 3.2 $ 0.0
Interest rate 0.83% 0.83%
NZD denominated tranche, interbank rates plus 0.990% | NZD Denominated Tranche | Facility C and D | Premium Financing Debt Facility    
Debt Instrument [Line Items]    
Total corporate and other debt $ 7.7 $ 7.0
Interest rate 0.99% 0.99%