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Long-Term Debt and Credit Arrangements - Components of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2025	Sep. 11, 2025	Dec. 31, 2024	Nov. 30, 2023	Dec. 31, 2020
Debt Instrument [Line Items]
Total debt	$ 10,600		$ 9,575
Less: unamortized discount and issuance costs	(79)		(78)
Less: current portion of long-term debt	0		(1,150)
Total long-term debt	10,521		8,347
Fair value of long-term debt	11,100		9,500
Convertible Notes \| 2025 Convertible Notes
Debt Instrument [Line Items]
Total debt	$ 0		1,150
Stated interest rate	0.00%				0.00%
Effective Interest Rates	0.00%
Convertible Notes \| 2028 Convertible Notes
Debt Instrument [Line Items]
Total debt	$ 1,725		1,725
Stated interest rate	0.875%			0.875%
Effective Interest Rates	1.10%
Fair value of long-term debt	$ 2,200
Senior Note \| 2028 Exchangeable Senior Notes
Debt Instrument [Line Items]
Total debt	$ 1,125		0
Stated interest rate	0.00%
Effective Interest Rates	0.00%
Senior Note \| 2027 Senior Notes
Debt Instrument [Line Items]
Total debt	$ 0		700
Stated interest rate	0.00%
Effective Interest Rates	0.00%
Senior Note \| 2028 Senior Notes
Debt Instrument [Line Items]
Total debt	$ 0		500
Stated interest rate	0.00%
Effective Interest Rates	0.00%
Senior Note \| 2029 Senior Notes
Debt Instrument [Line Items]
Total debt	$ 1,500		1,500
Stated interest rate	4.50%
Effective Interest Rates	4.70%
Senior Note \| 2030 Senior Notes
Debt Instrument [Line Items]
Total debt	$ 1,250		1,250
Stated interest rate	4.30%
Effective Interest Rates	4.50%
Senior Note \| 2031 Senior Notes
Debt Instrument [Line Items]
Total debt	$ 1,000		0
Stated interest rate	4.15%	4.15%
Effective Interest Rates	4.30%
Senior Note \| 2034 Senior Notes
Debt Instrument [Line Items]
Total debt	$ 1,500		1,500
Stated interest rate	4.80%
Effective Interest Rates	4.90%
Senior Note \| 2035 Senior Notes
Debt Instrument [Line Items]
Total debt	$ 1,250		0
Stated interest rate	4.80%	4.80%
Effective Interest Rates	5.00%
Senior Note \| 2054 Senior Notes
Debt Instrument [Line Items]
Total debt	$ 1,250		$ 1,250
Stated interest rate	5.35%
Effective Interest Rates	5.40%