CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Assets
Cash and cash equivalents	$ 833	$ 560
Accounts receivable, net of allowance of $2 at September 30, 2025 and December 31, 2024	574	564
Materials and supplies, net of allowance of $138 and $178 at September 30, 2025 and December 31, 2024, respectively	382	439
Assets held for sale	48	343
Restricted cash and cash equivalents	417	381
Other current assets	163	165
Total current assets	2,417	2,452
Property and equipment	17,428	22,417
Less accumulated depreciation	(4,740)	(6,586)
Property and equipment, net	12,688	15,831
Deferred tax assets, net	95	45
Other assets	974	1,043
Total assets	16,174	19,371
Liabilities and equity
Accounts payable	232	255
Accrued income taxes	5	31
Debt due within one year	1,372	686
Other current liabilities	626	691
Total current liabilities	2,235	1,663
Long-term debt	4,849	6,195
Deferred tax liabilities, net	403	499
Other long-term liabilities	609	729
Total long-term liabilities	5,861	7,423
Commitments and contingencies
Shares, $0.10 par value, 1,204,009,681 authorized, 141,262,093 conditionally authorized, 1,204,009,681 issued and 1,100,992,035 outstanding at September 30, 2025, and 1,057,879,029 authorized, 141,262,093 conditionally authorized, 940,828,901 issued and 875,830,772 outstanding at December 31, 2024	110	87
Additional paid-in capital	15,596	14,880
Accumulated deficit	(7,485)	(4,545)
Accumulated other comprehensive loss	(143)	(138)
Total controlling interest shareholders' equity	8,078	10,284
Noncontrolling interest		1
Total equity	8,078	10,285
Total liabilities and equity	$ 16,174	$ 19,371

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.