Significant accounting policies and practices (Tables)

12 Months Ended

Dec. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of reclassifications to amounts previously reported

These reclassifications conform presentations of balances in 2023 for comparability to current year presentations. Amounts are in millions.

	December 31, 2023
	As previously reported		Reclassification			As reclassified
Assets:
Insurance and Other:
Cash and cash equivalents	$	33,672	$	596		$	34,268
Other receivables		44,174		2,087			46,261
Inventories		24,159		1,697			25,856
Property, plant and equipment		22,030		8,169			30,199
Goodwill		50,868		6,605			57,473
Other intangible assets		29,327		6,557			35,884
Other		19,568		2,298			21,866
Railroad, Utilities and Energy:
Cash and cash equivalents		4,350		(596	)		3,754
Receivables		7,086		(2,087	)		4,999
Property, plant and equipment		177,616		(8,169	)		169,447
Goodwill		33,758		(6,605	)		27,153
Other		30,397		(10,552	)		19,845
Liabilities:
Insurance and Other:
Accounts payable, accruals and other liabilities		32,402		4,157			36,559
Notes payable and other borrowings		42,692		5,776			48,468
Railroad, Utilities and Energy:
Accounts payable, accruals and other liabilities		22,461		(4,157	)		18,304
Notes payable and other borrowings		85,579		(5,776	)		79,803
	Year ended December 31, 2023
	As previously reported		Reclassification			As reclassified
Revenues:
Insurance and Other:
Sales and service revenues	$	155,687	$	51,461		$	207,148
Interest, dividend and other investment income		15,561		203			15,764
Railroad, Utilities and Energy:
Utility and energy operating revenues		72,693		(51,461	)		21,232
Service revenues and other income		4,931		(203	)		4,728
Costs and expenses:
Insurance and Other:
Cost of sales and services		122,569		46,712			169,281
Selling, general and administrative expenses		22,605		2,853			25,458
Interest expense		1,258		413			1,671
Railroad, Utilities and Energy:
Utilities and energy cost of sales and other expenses		67,964		(49,565	)		18,399
Interest expense		3,745		(413	)		3,332