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Debt - Additional Information (Details) - USD ($)				3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 29, 2025	Jan. 27, 2023	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Feb. 05, 2025	Sep. 30, 2024
Debt Instrument [Line Items]
Debt instrument, covenant, total indebtedness to EBITDA ratio	3.50			3.50		3.50
Weighted-average interest rate of total debt	4.10%			4.10%	4.50%	4.10%	4.50%		4.30%
Interest expense, net				$ 43,000,000	$ 40,000,000	$ 119,000,000	$ 121,000,000
Interest expense, debt				45,000,000	$ 46,000,000	132,000,000	$ 137,000,000
Senior Notes
Debt Instrument [Line Items]
Long-term debt, maturities, repayments of principal until 2028	$ 0			0		0
Long-term debt, maturities, repayments of principal in rolling year five	381,000,000			381,000,000		381,000,000
Long term debt maturities repayments of principal in rolling after year five	$ 2,708,000,000			$ 2,708,000,000		$ 2,708,000,000
Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Debt instrument, covenant, total indebtedness to EBITDA ratio	3.50			3.50		3.50
Acquisition Corp.
Debt Instrument [Line Items]
Total debt, including the current portion	$ 4,090,000,000			$ 4,090,000,000		$ 4,090,000,000			$ 4,048,000,000
Acquisition Corp. | Revolving Credit Facility
Debt Instrument [Line Items]
Total debt, including the current portion	$ 0			$ 0		$ 0			0
Term loan base rate plus election rate	1.00%			1.00%		1.00%
Interest rate applicable to overdue principal						2.00%
Acquisition Corp. | Revolving Credit Facility | Federal Funds Effective Swap Rate
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						0.50%
Tempo
Debt Instrument [Line Items]
Asset-based securities								$ 311,000,000
Senior Term Loan Credit Agreement | Acquisition Corp.
Debt Instrument [Line Items]
Total debt, including the current portion	$ 1,295,000,000			$ 1,295,000,000		$ 1,295,000,000
2.750% Senior Secured Notes due 2028 | Acquisition Corp.
Debt Instrument [Line Items]
Total debt, including the current portion	$ 381,000,000			$ 381,000,000		$ 381,000,000			363,000,000
Interest rate	2.75%			2.75%		2.75%
3.750% Senior Secured Notes due 2029 | Acquisition Corp.
Debt Instrument [Line Items]
Total debt, including the current portion	$ 540,000,000			$ 540,000,000		$ 540,000,000			540,000,000
Interest rate	3.75%			3.75%		3.75%
3.875% Senior Secured Notes due 2030 | Acquisition Corp.
Debt Instrument [Line Items]
Total debt, including the current portion	$ 535,000,000			$ 535,000,000		$ 535,000,000			535,000,000
Interest rate	3.875%			3.875%		3.875%
2.250% Senior Secured Notes due 2031 | Acquisition Corp.
Debt Instrument [Line Items]
Total debt, including the current portion	$ 522,000,000			$ 522,000,000		$ 522,000,000			497,000,000
Interest rate	2.25%			2.25%		2.25%
3.000% Senior Secured Notes due 2031 | Acquisition Corp.
Debt Instrument [Line Items]
Total debt, including the current portion	$ 800,000,000			$ 800,000,000		$ 800,000,000			800,000,000
Interest rate	3.00%			3.00%		3.00%
Tempo Asset-Based Notes due 2050 | Tempo
Debt Instrument [Line Items]
Total debt, including the current portion	$ 311,000,000			$ 311,000,000		$ 311,000,000			0
Weighted-average interest rate of total debt								4.62%
Debt instrument, marginal interest rate						5.00%
Beethoven Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						1.00%
Term loan base rate plus election rate	1.00%			1.00%		1.00%
Beethoven Credit Agreement | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						2.00%
Beethoven Credit Agreement | Revolving Credit Facility | Federal Funds Effective Swap Rate
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						0.50%
Beethoven Credit Agreement | Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 500,000,000
Line of credit facility, accordion feature, increase limit		$ 700,000,000
Initial Revolving Loans | Acquisition Corp. | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						0.75%
Initial Revolving Loans | Acquisition Corp. | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						1.75%
2020 Revolving Loans | Revolving Credit Facility | Eurodollar Applicable Margin Rate
Debt Instrument [Line Items]
Debt instrument, marginal interest rate	1.375%	1.875%
2020 Revolving Loans | Revolving Credit Facility | ABR Applicable Margin Rate
Debt Instrument [Line Items]
Debt instrument, marginal interest rate	0.375%	0.875%
2020 Revolving Loans | Acquisition Corp. | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						0.875%
Senior secured indebtedness to EBITDA ratio	2.07			2.07		2.07
2020 Revolving Loans | Acquisition Corp. | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						1.875%
Senior Term Loan Facility -Tranche G | Acquisition Corp. | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						1.75%
Senior Term Loan Facility -Tranche G | Acquisition Corp. | Federal Funds Effective Swap Rate
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						0.50%
Senior Term Loan Facility -Tranche G | Acquisition Corp. | Base Rate
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						1.00%
Term loan base rate plus election rate	1.00%			1.00%		1.00%
Additional Interest rate on other overdue amounts						2.00%
Mortgage Term Loan due 2033 | Acquisition Corp.
Debt Instrument [Line Items]
Total debt, including the current portion	$ 17,000,000			$ 17,000,000		$ 17,000,000			$ 18,000,000
Mortgage Term Loan due 2033 | Acquisition Corp. | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, marginal interest rate			1.40%
Asset-Based Class A Notes | Tempo
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						3.53%
Asset-Based Class B Notes | Tempo
Debt Instrument [Line Items]
Debt instrument, marginal interest rate						4.28%

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