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Debt - Long Term Debt (Details) - USD ($) |  |  | 6 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 01, 2023 | May 15, 2023 | Jun. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 11,741,740,000 |  | $ 10,650,265,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (85,527,000) |  | (81,270,000)
CARRYING AMOUNT |  |  |  | 11,656,213,000 |  | 10,568,995,000
Debt, current portion |  |  |  | (107,984,000) |  | (87,546,000)
Unamortized debt issuance expense, net of current portion |  |  |  | 0 |  | 0
Carrying amount, current maturities |  |  |  | (107,984,000) |  | (87,546,000)
Long term debt, gross, net of current portion |  |  |  | 11,633,756,000 |  | 10,562,719,000
Unamortized deferred financing costs, noncurrent |  |  |  | (85,527,000) |  | (81,270,000)
Carrying amount, excluding current maturities |  |  |  | 11,548,229,000 |  | 10,481,449,000
Net proceeds from sale of senior note |  |  |  | 990,000,000 | $ 0 |
Accounts Receivable Securitization Program |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | 349,200,000 |  | 314,700,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (372,000) |  | (531,000)
CARRYING AMOUNT |  |  |  | 348,828,000 |  | 314,169,000
FAIR VALUE |  |  |  | 349,200,000 |  | 314,700,000
Credit Agreement |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Letters of credit outstanding |  |  |  | 38,434,000 |  |
Credit Agreement | Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | 1,049,500,000 |  | 1,072,200,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (4,976,000) |  | (6,790,000)
CARRYING AMOUNT |  |  |  | 1,044,524,000 |  | 1,065,410,000
FAIR VALUE |  |  |  | 1,049,500,000 |  | $ 1,072,200,000
Remaining capacity |  |  |  | $ 1,196,037,000 |  |
Weighted average interest rate (as a percent) |  |  |  | 7.20% |  | 6.20%
Letters of credit outstanding |  |  |  | $ 4,463,000 |  |
Credit Agreement | UK Bilateral Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | 170,858,000 |  | $ 169,361,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | 0 |  | 0
CARRYING AMOUNT |  |  |  | 170,858,000 |  | 169,361,000
FAIR VALUE |  |  |  | 170,858,000 |  | 169,361,000
Term Loan Facility | Term Loan A |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | 231,250,000 |  | 240,625,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | 0 |  | 0
CARRYING AMOUNT |  |  |  | 231,250,000 |  | 240,625,000
FAIR VALUE |  |  |  | 231,250,000 |  | 240,625,000
Term Loan Facility | Term Loan B |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | 660,992,000 |  | 666,073,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (2,810,000) |  | (3,747,000)
CARRYING AMOUNT |  |  |  | 658,182,000 |  | 662,326,000
FAIR VALUE |  |  |  | 661,500,000 |  | 666,750,000
Term Loan Facility | Term Loan B | LIBOR |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, basis spread on variable rate | 1.75% |  | 1.75% |  |  |
Term Loan Facility | Virginia 3 Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | 26,134,000 |  | 0
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (3,915,000) |  | 0
CARRYING AMOUNT |  |  |  | 22,219,000 |  | 0
FAIR VALUE |  |  |  | 26,134,000 |  | 0
Australian Dollar Term Loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | 187,853,000 |  | 202,641,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (491,000) |  | (633,000)
CARRYING AMOUNT |  |  |  | 187,362,000 |  | 202,008,000
FAIR VALUE |  |  |  | 189,349,000 |  | 204,623,000
Senior Notes | 3 7/8% GBP Senior Notes due 2025 (the "GBP Notes") |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | 488,166,000 |  | 483,888,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (1,920,000) |  | (2,589,000)
CARRYING AMOUNT |  |  |  | 486,246,000 |  | 481,299,000
FAIR VALUE |  |  |  | $ 458,959,000 |  | 445,206,000
Stated interest rate (as a percent) |  |  |  | 3.875% |  |
Senior Notes | 4 7/8% Senior Notes due 2027 (the "4 7/8% Notes due 2027") |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 1,000,000,000 |  | 1,000,000,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (5,688,000) |  | (6,754,000)
CARRYING AMOUNT |  |  |  | 994,312,000 |  | 993,246,000
FAIR VALUE |  |  |  | $ 913,750,000 |  | 917,500,000
Stated interest rate (as a percent) |  |  |  | 4.875% |  |
Senior Notes | 5 1/4% Senior Notes due 2028 (the “5 1/4% Notes due 2028”) |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 825,000,000 |  | 825,000,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (5,314,000) |  | (6,200,000)
CARRYING AMOUNT |  |  |  | 819,686,000 |  | 818,800,000
FAIR VALUE |  |  |  | $ 755,906,000 |  | 754,875,000
Stated interest rate (as a percent) |  |  |  | 5.25% |  |
Senior Notes | 5% Senior Notes due 2028 (the “5% Notes due 2028”) |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 500,000,000 |  | 500,000,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (3,497,000) |  | (4,039,000)
CARRYING AMOUNT |  |  |  | 496,503,000 |  | 495,961,000
FAIR VALUE |  |  |  | $ 451,250,000 |  | 450,000,000
Stated interest rate (as a percent) |  |  |  | 5.00% |  |
Senior Notes | 7% Senior Notes due 2029 (the "7% Notes due 2029") |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 1,000,000,000 |  | 0
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (11,253,000) |  | 0
CARRYING AMOUNT |  |  |  | 988,747,000 |  | 0
FAIR VALUE |  |  |  | $ 972,500,000 |  | 0
Stated interest rate (as a percent) |  |  |  | 7.00% |  |
Principal amount |  | $ 1,000,000,000 |  |  |  |
Principal amount percentage |  | 100.00% |  |  |  |
Net proceeds from sale of senior note |  | $ 990,000,000 |  |  |  |
Senior Notes | 4 7/8% Senior Notes due 2029 (the “4 7/8% Notes due 2029”) |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 1,000,000,000 |  | 1,000,000,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (8,679,000) |  | (9,764,000)
CARRYING AMOUNT |  |  |  | 991,321,000 |  | 990,236,000
FAIR VALUE |  |  |  | $ 872,500,000 |  | 865,000,000
Stated interest rate (as a percent) |  |  |  | 4.875% |  |
Senior Notes | 5 1/4% Senior Notes due 2030 (the “5 1/4 Notes due 2030”) |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 1,300,000,000 |  | 1,300,000,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (10,279,000) |  | (11,407,000)
CARRYING AMOUNT |  |  |  | 1,289,721,000 |  | 1,288,593,000
FAIR VALUE |  |  |  | $ 1,124,500,000 |  | 1,111,500,000
Stated interest rate (as a percent) |  |  |  | 5.25% |  |
Senior Notes | 4 1/2% Senior Notes due 2031 (the “4 1/2% Notes”) |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 1,100,000,000 |  | 1,100,000,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (9,228,000) |  | (10,161,000)
CARRYING AMOUNT |  |  |  | 1,090,772,000 |  | 1,089,839,000
FAIR VALUE |  |  |  | $ 902,000,000 |  | 891,000,000
Stated interest rate (as a percent) |  |  |  | 4.50% |  |
Senior Notes | 5% Senior Notes due 2032 (the "5% Notes due 2032") |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 750,000,000 |  | 750,000,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (11,532,000) |  | (12,511,000)
CARRYING AMOUNT |  |  |  | 738,468,000 |  | 737,489,000
FAIR VALUE |  |  |  | $ 615,000,000 |  | 622,500,000
Stated interest rate (as a percent) |  |  |  | 5.00% |  |
Senior Notes | 5 5/8% Senior Notes due 2032 (the "5 5/8% Notes") |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 600,000,000 |  | 600,000,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (5,130,000) |  | (5,566,000)
CARRYING AMOUNT |  |  |  | 594,870,000 |  | 594,434,000
FAIR VALUE |  |  |  | $ 513,000,000 |  | 520,500,000
Stated interest rate (as a percent) |  |  |  | 5.625% |  |
Real Estate Mortgages, Financing Lease Liabilities and Other |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
DEBT (INCLUSIVE OF DISCOUNT) |  |  |  | $ 502,787,000 |  | 425,777,000
UNAMORTIZED DEFERRED FINANCING COSTS |  |  |  | (443,000) |  | (578,000)
CARRYING AMOUNT |  |  |  | 502,344,000 |  | 425,199,000
FAIR VALUE |  |  |  | $ 502,787,000 |  | $ 425,777,000

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