Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions		1 Months Ended
		Nov. 30, 2024	Mar. 31, 2025	Mar. 14, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Obligations under finance leases due at various dates through 2054			$ 140		$ 145
Long-Term Debt and Lease Obligation, Including Current Maturities			12,558		12,527
Unamortized debt issuance costs	[1]		(87)		(56)
Long-Term Debt and Lease Obligation, Current			(93)		(1,393)
Long-term debt, net of unamortized deferred financing costs			12,378		11,078
Senior unsecured notes due 2025, interest rate of 1.250%
Debt Instrument [Line Items]
Senior unsecured debt			$ 0		311
Debt Instrument, Interest Rate, Stated Percentage			1.25%
Senior unsecured notes due 2025, interest rate of 6.050%
Debt Instrument [Line Items]
Senior unsecured debt			$ 0		1,000
Debt Instrument, Interest Rate, Stated Percentage			6.05%
Senior unsecured notes due 2026, interest rate of 1.400%
Debt Instrument [Line Items]
Senior unsecured debt			$ 400		400
Debt Instrument, Interest Rate, Stated Percentage			1.40%
Senior unsecured notes due 2026, interest rate of 4.777%
Debt Instrument [Line Items]
Senior unsecured debt			$ 485		1,040
Debt Instrument, Interest Rate, Stated Percentage			4.777%
Senior unsecured notes due 2027, interest rate of 2.125%
Debt Instrument [Line Items]
Senior unsecured debt			$ 540		518
Debt Instrument, Interest Rate, Stated Percentage			2.125%
Senior unsecured notes due 2027, interest rate of 6.415%(1)
Debt Instrument [Line Items]
Senior unsecured debt	[2]		$ 1,500		2,000
Debt Instrument, Interest Rate, Stated Percentage			6.415%
Debt Instrument, Interest Rate, Increase (Decrease)		0.25%
Senior unsecured term loan due 2027(2)
Debt Instrument [Line Items]
Senior unsecured debt	[3]		$ 480		$ 880
Debt Instrument, Interest Rate, Stated Percentage			6.175%		6.047%
Senior unsecured notes due 2028, interest rate of 0.625%
Debt Instrument [Line Items]
Senior unsecured debt			$ 541		$ 519
Debt Instrument, Interest Rate, Stated Percentage			0.625%
Senior unsecured notes due 2028, interest rate of 6.600%(1)
Debt Instrument [Line Items]
Senior unsecured debt	[2]		$ 1,000		1,000
Debt Instrument, Interest Rate, Stated Percentage			6.60%
Debt Instrument, Interest Rate, Increase (Decrease)		0.25%
Senior unsecured notes due 2029, interest rate of 5.587%(1)
Debt Instrument [Line Items]
Senior unsecured debt	[2]		$ 541		519
Debt Instrument, Interest Rate, Stated Percentage			5.587%
Senior unsecured notes due 2029, interest rate of 6.580%(1)
Debt Instrument [Line Items]
Senior unsecured debt	[2]		$ 750		750
Debt Instrument, Interest Rate, Stated Percentage			6.58%
Debt Instrument, Interest Rate, Increase (Decrease)		0.25%
Senior unsecured notes due 2030, interest rate of 6.500%
Debt Instrument [Line Items]
Senior unsecured debt			$ 700		0
Debt Instrument, Interest Rate, Stated Percentage			6.50%	6.50%
Senior unsecured notes due 2030, interest rate of 6.800%(1)
Debt Instrument [Line Items]
Senior unsecured debt	[2]		$ 999		999
Debt Instrument, Interest Rate, Stated Percentage			6.80%
Debt Instrument, Interest Rate, Increase (Decrease)		0.25%
5.000% Senior Notes due 2031
Debt Instrument [Line Items]
Senior unsecured debt			$ 811		0
Debt Instrument, Interest Rate, Stated Percentage			5.00%	5.00%
Senior unsecured notes due 2032, interest rate of 6.629%(1)
Debt Instrument [Line Items]
Senior unsecured debt	[2]		$ 1,000		1,000
Debt Instrument, Interest Rate, Stated Percentage			6.629%
Debt Instrument, Interest Rate, Increase (Decrease)		0.25%
Senior unsecured notes due 2033, interest rate of 6.950%(1)
Debt Instrument [Line Items]
Senior unsecured debt	[2]		$ 1,000		1,000
Debt Instrument, Interest Rate, Stated Percentage			6.95%
Debt Instrument, Interest Rate, Increase (Decrease)		0.25%
Senior unsecured notes due 2033, interest rate of 6.750%
Debt Instrument [Line Items]
Senior unsecured debt			$ 1,100		0
Debt Instrument, Interest Rate, Stated Percentage			6.75%	6.75%
Pollution control and industrial revenue bonds due at various dates through 2030(3)
Debt Instrument [Line Items]
Other long-term debt	[4]		$ 125		126
Pollution control and industrial revenue bonds due at various dates through 2030(3) | Minimum
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			4.10%
Pollution control and industrial revenue bonds due at various dates through 2030(3) | Maximum
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.00%
Bank loans due at various dates through 2030(4)
Debt Instrument [Line Items]
Other long-term debt	[5]		$ 446		$ 320
Long-term debt, weighted average interest rate, at point in time			2.70%		2.80%

[1] Related to the Company's long-term debt, excluding obligations under finance leases.

[2] In November 2024, S&P Global Ratings downgraded the Company's credit rating to BB+, which had the effect of increasing the interest rates by 25 basis points on certain senior unsecured notes, effective beginning at various dates through January 19, 2025.

[3] The interest rate was 6.175% and 6.047% as of March 31, 2025 and December 31, 2024, respectively.

[4] Interest rates range from 4.1% to 5.0%.

[5] The weighted average interest rate was 2.7% and 2.8% as of March 31, 2025 and December 31, 2024, respectively.