Long-Term Debt and Available Credit Facilities Available Committed Credit Facilities (Narrative) (Details) $ in Millions	1 Months Ended		13 Months Ended	36 Months Ended	60 Months Ended
	May 31, 2023 USD ($)	Feb. 28, 2023 USD ($)	Feb. 26, 2024	May 03, 2025	Jun. 03, 2029	May 03, 2027	Dec. 31, 2024 USD ($)	Feb. 20, 2024 USD ($)	May 03, 2022 USD ($)
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							$ 5,750
Line of Credit Facility, Remaining Borrowing Capacity							5,750
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Foreign Currency Loans [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity							62
Revolving Credit Facilities due 2027
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							1,900		$ 3,000
Line of Credit Facility, Remaining Borrowing Capacity							1,900
Debt Instrument, Term					3 years	5 years
Revolving Credit Facilities due 2025
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity									$ 2,000
Debt Instrument, Term				3 years
364-day Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							1,000
Line of Credit Facility, Remaining Borrowing Capacity							$ 1,000
Debt Instrument, Term			364 days
Ratio of Indebtedness to Net Capital							0.60
Adjusted Term SOFR			0.10%
364-day Revolving Credit Facilities due 2024
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								$ 1,000
Proceeds from Lines of Credit		$ 1,000
Repayments of Lines of Credit	$ 1,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Adjusted Term SOFR						0.10%
Revolving Credit Facilities due 2029
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							$ 2,850
Line of Credit Facility, Remaining Borrowing Capacity							$ 2,850
Debt Instrument, Term					5 years
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Ratio of Indebtedness to Net Capital							0.60