v3.26.1
FAIR VALUE MEASUREMENTS - Carrying Amounts and Fair Values of Financial Instruments (Details) - USD ($)
$ in Millions
Mar. 28, 2026
Sep. 30, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents $ 3,884 $ 2,808
Short-term borrowings—trade receivable securitization facility 724 724
Long-term Debt 31,279  
Prepaid Expenses and Other Current Assets    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Interest Rate Swap Asset Carrying Amount [1] 4 3
Interest Rate Collar Assets [1] 3 4
Other non-current assets    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Interest Rate Swap Asset Carrying Amount [2] 19 5
Interest Rate Collar Assets [2] 10 3
Accrued and other current liabilities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Foreign Currency Contract, Liability [3] 2 2
Other non-current liabilities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Interest Rate Collar Agreement, Liability [4] 0 3
Term loans    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 11,816 11,048
Government refundable advances    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt 8 12
Finance Lease Obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt 303 284
Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents, Fair Value 3,884 2,808
Level 2 | Prepaid Expenses and Other Current Assets    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Interest Rate Swap Asset at Fair Value [1] 4 3
Interest Rate Collar Assets [1] 3 4
Level 2 | Other non-current assets    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Interest Rate Swap Asset at Fair Value [2] 19 5
Interest Rate Collar Assets [2] 10 3
Level 2 | Accrued and other current liabilities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Foreign Currency Contract, Liability [3] 2 2
Level 2 | Other non-current liabilities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Interest Rate Collar Agreement, Liability [4] 0 3
Level 2 | Term loans    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 11,909 11,120
Level 2 | Government refundable advances    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value 8 12
Level 2 | Finance Lease Obligations    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value 303 284
Senior Secured Notes $2,100M due 2028 6.75% | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 2,086 2,083
Senior Secured Notes $2,100M due 2028 6.75% | Level 1 | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 2,126 2,139
Senior Subordinated Notes $1200M Due 2029 4.625% | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 1,196 1,195
Senior Subordinated Notes $1200M Due 2029 4.625% | Level 1 | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 1,176 1,175
Senior Secured Notes $2,750M due 2029 6.375% | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 2,734 2,732
Senior Secured Notes $2,750M due 2029 6.375% | Level 1 | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 2,784 2,812
Senior Subordinated Notes $750M due 2029 4.875% | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 747 747
Senior Subordinated Notes $750M due 2029 4.875% | Level 1 | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 735 739
Senior Secured Notes $1,450M due 2030 6.875% | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 1,441 1,440
Senior Secured Notes $1,450M due 2030 6.875% | Level 1 | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 1,484 1,501
Senior Secured Notes $1,000M due 2031 7.125% | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 988 986
Senior Secured Notes $1,000M due 2031 7.125% | Level 1 | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 1,030 1,041
Senior Secured Notes $2,200M due 2032 6.625% | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 2,184 2,183
Senior Secured Notes $2,200M due 2032 6.625% | Level 1 | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 2,244 2,263
Senior Secured Notes $1,500M due 2033 6.00% | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 1,489 1,488
Senior Secured Notes $1,500M due 2033 6.00% | Level 1 | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 1,496 1,517
Senior Subordinated Notes $2,650M due 2033 6.375% | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 2,619 2,616
Senior Subordinated Notes $2,650M due 2033 6.375% | Level 1 | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 2,640 2,686
Senior Secured Notes $500M due 2034 6.250% | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 496 495
Senior Secured Notes $500M due 2034 6.250% | Level 1 | Secured Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 504 514
Senior Subordinated Notes $2,000M due 2034 6.750% | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 1,983 1,982
Senior Subordinated Notes $2,000M due 2034 6.750% | Level 1 | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 2,028 2,068
Senior Subordinated Notes $1,200M due 2034 6.125% | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt [5] 1,189 0
Senior Subordinated Notes $1,200M due 2034 6.125% | Level 1 | Senior Subordinated Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion, Fair Value [5] 1,158 0
Asset-backed Securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term borrowings—trade receivable securitization facility [5] 724 724
Asset-backed Securities | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term borrowings - trade receivable securitization facility, Fair Value [5] $ 724 $ 724
[1] Included in prepaid expenses and other on the condensed consolidated balance sheets.
[2] Included in other non-current assets on the condensed consolidated balance sheets.
[3] Included in accrued and other current liabilities on the condensed consolidated balance sheets.
[4] Included in other non-current liabilities on the condensed consolidated balance sheets.
[5] The carrying amount of the debt instrument is presented net of debt issuance costs and original issue discount.