Leases -Schedule of Other Information Related to Leases (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases	$ 84	$ 88
Operating cash flows from operating leases	176	169
Financing cash flows from finance leases	129	111
Right-of-use assets obtained in exchange for lease obligations:
Finance leases	164	121
Operating leases	$ 59	$ 74
Weighted-average remaining lease term - finance leases	13 years		13 years
Weighted-average remaining lease term - operating leases	12 years		12 years
Weighted-average discount rate - finance leases	6.00%		6.00%
Weighted-average discount rate - operating leases	5.00%		5.00%
Finance lease right-of-use assets	$ 2,304		$ 2,277
Accumulated amortization, finance lease, right-of-use asset	$ 1,300		$ 1,100
Finance lease, right-of-use asset, statement of financial position flag	Property, plant and equipment, net		Property, plant and equipment, net

Cash Flow, Lessee [Abstract]

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Right-Of-Use Assets Obtained in Exchange for Lease Obligations [Abstract]

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Amount of interest paid on finance lease liability.

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Amount of cash outflow for principal payment on finance lease.

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Amount, after accumulated amortization, of right-of-use asset from finance lease.

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Amount of accumulated amortization of right-of-use asset from finance lease.

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Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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