Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions		3 Months Ended		9 Months Ended		12 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Cash flows from operating activities:
Net income (loss)		$ 609	$ 655	$ 1,902	$ 1,995
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation, depletion and amortization				804	742
Changes in assets and liabilities:
Receivables				(516)	(522)
Accounts payable				(145)	137
Inventories				16	(413)
Other operating activities				232	109
Total cash flows provided by operating activities				2,409	2,048
Cash flows from investing activities:
Capital expenditures				(1,016)	(980)
Payments to Acquire Marketable Securities				(320)	(301)
Proceeds from sales of property, plant and equipment				149	136
Other investing activities				(160)	(91)
Total cash flows used in investing activities				(1,210)	(1,124)
Cash flows from financing activities:
Dividends to shareholders				(452)	(433)
Repayments of Long-term Debt				0	(150)
Payments for Repurchase of Common Stock				696	546
Other financing activities				(37)	2
Total cash flows used in financing activities				(1,185)	(1,127)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations				(100)	(107)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total				(86)	(310)
Cash and equivalents at beginning of period		$ 2,264	$ 2,346	2,264	2,346	$ 2,346
Cash and equivalents at end of period						2,264
Cash and equivalents at end of period				2,178	2,036	$ 2,264
Cash payments during the period for:
Interest				336	355
Income taxes				$ 369	528
Maximum Percentage Gross Trade Receivables From One Customer				10.00%		10.00%
Proceeds from Sale and Maturity of Marketable Securities				$ 137	112
Impairments and other charges	[1]			$ 116	$ 0
UNITED STATES | Accounts Receivable [Member] | Geographic Concentration Risk [Member]
Cash payments during the period for:
Concentration Risk, Percentage				30.00%		33.00%
MEXICO | Accounts Receivable [Member] | Geographic Concentration Risk [Member]
Cash payments during the period for:
Concentration Risk, Percentage				12.00%		9.00%

[1] For the three and nine months ended September 30, 2024, the amount includes a $45 million charge attributable to Completion and Production, a $34 million charge attributable to Drilling and Evaluation, and a $37 million charge attributable to Corporate and other. See Note 2 for further discussion on impairments and other charges.