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Long-Term Debt and Other Credit Facilities - Narrative (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended
	May 31, 2026	Apr. 30, 2026	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Debt Instrument [Line Items]
Interest expense and other finance charges			$ 214	$ 62	$ 333	$ 136
Secured ISDAs			140		140		$ 60
Secured ISDAs
Debt Instrument [Line Items]
Secured ISDAs			892		892
Line of Credit \| RCF
Debt Instrument [Line Items]
Interest rate	0.50%
Aggregate principal amount	$ 900		1,350		1,350
Line of Credit \| LCF
Debt Instrument [Line Items]
Aggregate principal amount	$ 1,100		$ 1,500		$ 1,500
Line of Credit \| Fed Funds Effective Rate Overnight Index Swap Rate \| RCF
Debt Instrument [Line Items]
Interest rate	0.50%
Line of Credit \| Fed Funds Effective Rate Overnight Index Swap Rate \| TLB-1
Debt Instrument [Line Items]
Interest rate	0.50%
Line of Credit \| Fed Funds Effective Rate Overnight Index Swap Rate \| TLB-2
Debt Instrument [Line Items]
Interest rate	0.50%
Line of Credit \| Secured Overnight Financing Rate (SOFR) \| RCF
Debt Instrument [Line Items]
Interest rate	1.00%
Line of Credit \| Secured Overnight Financing Rate (SOFR) \| TLB-1
Debt Instrument [Line Items]
Interest rate	1.00%
Line of Credit \| Secured Overnight Financing Rate (SOFR) \| TLB-2
Debt Instrument [Line Items]
Interest rate	1.00%
Line of Credit \| Adjusted Secured Overnight Financing Rate (SOFR) \| RCF
Debt Instrument [Line Items]
Interest rate	1.50%
Secured Debt
Debt Instrument [Line Items]
Repayments debt		$ 1,200
Repayment of debt, interest expense and other finance charges		60
Secured Debt \| TLB-1
Debt Instrument [Line Items]
Interest rate	0.75%
Interest expense and other finance charges	$ 18
Interest rate			5.39%		5.39%
Secured Debt \| TLB-2
Debt Instrument [Line Items]
Interest rate	0.75%
Interest rate			5.39%		5.39%
Secured Debt \| Adjusted Secured Overnight Financing Rate (SOFR) \| TLB-1
Debt Instrument [Line Items]
Interest rate	1.75%
Secured Debt \| Adjusted Secured Overnight Financing Rate (SOFR) \| TLB-2
Debt Instrument [Line Items]
Interest rate	1.75%
Unsecured Debt \| 2031 Unsecured Notes
Debt Instrument [Line Items]
Aggregate principal amount		$ 1,500
Interest rate		6.125%	6.125%		6.125%
Unsecured Debt \| 2033 Unsecured Notes
Debt Instrument [Line Items]
Aggregate principal amount		$ 2,500
Interest rate		6.375%	6.375%		6.375%