Accumulated Other Comprehensive Income (Loss) (Income (Expense) Effect of Reclassifications) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Affected Line Item on the Statements of Income
Interest Expense, Operating and Nonoperating	$ (738)	$ (666)	$ (513)
Other Income (Expense) - net	114	(40)	54
Total Pre-tax	1,116	924	915
Income Taxes	(228)	(184)	(201)
Income (Loss) from Discontinued Operations (net of income taxes)	0	0	42
Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Affected Line Item on the Statements of Income
Total After-Tax	0	(1)	(21)
Qualifying Derivatives [Member] | Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Affected Line Item on the Statements of Income
Total Pre-tax	(3)	(3)	(3)
Income Taxes	0	0	1
Total After-Tax	(3)	(3)	(2)
Qualifying Derivatives [Member] | Interest Rate Swaps [Member] | Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Affected Line Item on the Statements of Income
Interest Expense, Operating and Nonoperating	(3)	(3)	(3)
Defined Benefit Plans [Member] | Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Affected Line Item on the Statements of Income
Total Pre-tax	3	1	(27)
Income Taxes	0	1	8
Total After-Tax	3	2	(19)
Defined Benefit Plans [Member] | Prior Service Costs [Member] | Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Affected Line Item on the Statements of Income
Total Pre-tax	(1)	(2)	(3)
Defined Benefit Plans [Member] | Net Actuarial Loss [Member] | Amounts Reclassified From Accumulated Other Comprehensive Income [Member]
Affected Line Item on the Statements of Income
Total Pre-tax	$ 4	$ 3	$ (24)