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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Amount of increase (decrease) from measurement period adjustment of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale - Additional Information (Detail) $ in Millions				3 Months Ended		9 Months Ended		12 Months Ended
	Apr. 05, 2024 USD ($) Facility	Feb. 09, 2024 USD ($) Plant	Jan. 12, 2024	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 Plant
Business Acquisition [Line Items]
Revenues				$ 1,889	$ 1,994	$ 4,905	$ 5,169
Pretax earnings				489	567	2,308	1,226
Charges for selling acquired inventory							20
Business combination periods for production level			60 years
Revenues		$ 2,100
Business combination number of south texas ready mix operations \| Plant								20
Divestitures number of south texas ready mix operations \| Plant		20
Pretax gain						1,300
Income/ loss from discontinued operations				0	$ (13)	0	(26)
Blue Water Industries LLC
Business Acquisition [Line Items]
Number of active aggregates operations \| Facility	20
Payments to acquire businesses gross	$ 2,050
Acquisition related expenses							$ 22
Increase in fair value of property, plant and equipment				91
Reduction in goodwill				77
Albert Frei And Sons, Inc. And Blue Water Industries LLC. [Member]
Business Acquisition [Line Items]
Revenues				85		182
Pretax earnings				$ 13		25
Charges for selling acquired inventory						$ 20