INDEBTEDNESS (NARRATIVE) (Details) - USD ($)			1 Months Ended	12 Months Ended
	Nov. 23, 2021	Mar. 25, 2021	Apr. 30, 2021	Dec. 31, 2022	Dec. 31, 2021
Initiation date of current line of credit agreement	Nov. 23, 2021
Line of Credit Facility, Increase (Decrease), Other, Net		$ 300,000,000
Line of Credit Facility, Current Borrowing Capacity	$ 1,500,000,000	$ 1,200,000,000
Initial Borrowing Capacity				$ 1,500,000
Proceeds from factored receivables				100,000,000
Percentage of receivables factored				$ 25
Credit facility interest rate				3.10%	1.30%
Line of Credit Facility, Collateral				Letter of credit fees are one eighth of 1% of the stated amount of the letter of credit on the date of issuance, renewal or amendment, plus an annual fee equal to the borrowing margin for Eurodollar loans.
Receivables Held-for-sale, Amount				$ 100,000,000
Line of credit				960,000,000	$ 791,000,000
Average daily utilization under credit facility				1,037,400,000	$ 797,200,000
Remaining borrowing capacity under credit facility				335,000,000
Letters Of Credit Issued Outside Line Of Credit Facility				300,000
Line Of Credit Facility Letters Of Credit Issued				$ 200,000
Fed Funds Effective Rate Overnight Index Swap Rate [Member]
Credit facility interest rate				1.00%
London Interbank Offered Rate (LIBOR) [Member]
Credit facility interest rate				1.25%
Avtex
Line of Credit Facility, Increase (Decrease), Other, Net			$ 500,000,000
Minimum | Company's net leverage ratio [Member]
Credit facility interest rate				0.00%
Minimum | Eurodollar [Member]
Credit facility interest rate				1.00%
Maximum
Proceeds from factored receivables				$ 100,000,000
Receivables Held-for-sale, Amount				$ 100,000,000
Maximum | Company's net leverage ratio [Member]
Credit facility interest rate				0.75%
Maximum | Eurodollar [Member]
Credit facility interest rate				1.75%