DEBT - Senior Notes (Details) - USD ($)		1 Months Ended	9 Months Ended
	Apr. 01, 2025	Mar. 31, 2025	Sep. 30, 2025	Sep. 30, 2024	May 31, 2025
Debt Instrument [Line Items]
Repayments of senior notes			$ 771,000,000	$ 48,000,000
Interest Rate Swap
Debt Instrument [Line Items]
Cumulative, aggregate increase to the carrying value of senior note			48,000,000
Senior Notes
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt		$ 1,481,000,000
$750 million, 5.550% due May 1, 2035 | Senior Notes
Debt Instrument [Line Items]
Aggregate principal		$ 750,000,000	$ 750,000,000
Stated interest rate (as percent)		5.55%	5.55%
$500 million, 6.000% due May 1, 2055 | Senior Notes
Debt Instrument [Line Items]
Aggregate principal		$ 500,000,000	$ 500,000,000
Stated interest rate (as percent)		6.00%	6.00%
5.375 Percent Senior Notes Due April 2031 - Additional Issuance | Senior Notes
Debt Instrument [Line Items]
Aggregate principal		$ 250,000,000
Stated interest rate (as percent)		5.375%
$600 million, 4.500% due April 1, 2025 | Senior Notes
Debt Instrument [Line Items]
Aggregate principal			$ 600,000,000
Stated interest rate (as percent)	4.50%		4.50%
Repayments of senior notes	$ 577,000,000
Repurchase Plan May 2025 | Senior Notes
Debt Instrument [Line Items]
Repurchased principal amount			$ 200,000,000
Repurchase amount			194,000,000
$750 million, 1.350% due February 3, 2027 | Senior Notes
Debt Instrument [Line Items]
Aggregate principal			$ 750,000,000		$ 750,000,000
Stated interest rate (as percent)			1.35%		1.35%
$600 million, 3.950% due March 15, 2027 | Senior Notes
Debt Instrument [Line Items]
Aggregate principal			$ 600,000,000		$ 600,000,000
Stated interest rate (as percent)			3.95%		3.95%