Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue:
Revenue	$ 5,833	$ 5,798	$ 11,637	$ 11,475
Operating costs and expenses:
SAP S4 Upgrade Expense	29	13	63	13
General and administrative	62	54	123	108
Total operating costs and expenses	4,801	4,787	9,618	9,487
Operating income	1,032	1,011	2,019	1,988
Interest expense, net of interest income	(92)	(102)	(184)	(203)
Marketable Security, Gain (Loss)	0	(104)	0	(104)
Other, net	(20)	(22)	(128)	(69)
Income (loss) from continuing operations before income taxes	920	783	1,707	1,612
Income tax (provision) benefit	(207)	(167)	(385)	(341)
Net income (loss)	713	616	1,322	1,271
Net (income) loss attributable to noncontrolling interest	(4)	(6)	(7)	(10)
Net income (loss) attributable to company	$ 709	$ 610	$ 1,315	$ 1,261
Earnings Per Share, Basic	$ 800,000	$ 680,000	$ 1,480,000	$ 1,400,000
Earnings Per Share, Diluted	$ 800,000	$ 680,000	$ 1,480,000	$ 1,390,000
Weighted Average Number of Shares Outstanding, Basic	884	901	886	902
Weighted Average Number of Shares Outstanding, Diluted	886	903	888	905
MEXICO | Accounts Receivable [Member] | Customer Concentration Risk
Operating costs and expenses:
Concentration Risk, Percentage			11.00%
Noncontrolling Interest in Consolidated Subsidiaries
Operating costs and expenses:
Net income (loss)	$ 4	$ 6
Services [Member]
Revenue:
Revenue	4,215	4,181	$ 8,361	$ 8,347
Operating costs and expenses:
Cost of services and sales	3,417	3,404	6,845	6,803
Product sales [Member]
Revenue:
Revenue	1,618	1,617	3,276	3,128
Operating costs and expenses:
Cost of services and sales	$ 1,293	$ 1,316	$ 2,587	$ 2,563