Sale of Accounts Receivable (Narrative) (Details) $ in Millions, € in Billions	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2022 EUR (€)
Sale of Accounts Receivable [Line Items]
Proceeds from the collection of receivables sold	$ 56,900	$ 47,300	$ 34,200
Collections applied to deferred consideration			6,700
Loss on transfer of accounts receivables to purchasers	21	11	9
Lines of credit	12,400
Transfer of Financial Assets Accounted for as Sales, Amount Derecognized	2,600	2,200
Amount of receivables sold	59,000	50,300	$ 35,000
Accounts Receivable, after Allowance for Credit Loss, Current	4,926	3,311
Asset Pledged as Collateral without Right
Sale of Accounts Receivable [Line Items]
Accounts Receivable, after Allowance for Credit Loss, Current	600	$ 500
Accounts Receivable Securitization Facility [Member]
Sale of Accounts Receivable [Line Items]
Lines of credit	2,600
Program [Member] | Accounts Receivable Securitization Facility [Member]
Sale of Accounts Receivable [Line Items]
Lines of credit	1,800
Second Program [Member] | Accounts Receivable Securitization Facility [Member]
Sale of Accounts Receivable [Line Items]
Lines of credit	$ 800			€ 0.8