Equity, Income Tax Effects on Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Before-Tax Amount
Other comprehensive income (loss) before income tax expense (benefit)	$ 853	$ (426)	$ 553
Tax Expense (Benefit)
Income tax expense (benefit) related to items of other comprehensive income (loss)	36	21	18
Net Amount
Other comprehensive income (loss)	817	(447)	535
Foreign Currency Translation Adjustment [Member]
Before-Tax Amount
Other comprehensive income (loss), before reclassifications, before tax	659	(546)	433
Tax Expense (Benefit)
Other comprehensive income (loss), before reclassifications, tax expense (benefit)	(4)	(16)	0
Net Amount
Other comprehensive income (loss), before reclassifications, net of tax	663	(530)	433
Net Gain (Loss) on Pension and Other Postretirement Benefits [Member]
Before-Tax Amount
Effect of exchange rates, before tax expense (benefit)	8	(3)	4
Other comprehensive income (loss) before income tax expense (benefit)	170	207	30
Tax Expense (Benefit)
Effect of exchange rates, tax expense (benefit)	2	(1)	1
Income tax expense (benefit) related to items of other comprehensive income (loss)	38	47	9
Net Amount
Effect of exchange rates, net amount	6	(2)	3
Other comprehensive income (loss)	132	160	21
Net Actuarial Gain [Member]
Before-Tax Amount
Other comprehensive income (loss), before reclassifications, before tax	170	224	77
Reclassification from accumulated other comprehensive loss, current period, before tax	(16)	(9)	(12)
Tax Expense (Benefit)
Other comprehensive income (loss), before reclassifications, tax expense (benefit)	39	51	18
Reclassification from accumulated other comprehensive loss, current period, tax expense (benefit)	(4)	(2)	(3)
Net Amount
Other comprehensive income (loss), before reclassifications, net of tax	131	173	59
Reclassification from accumulated other comprehensive loss, current period, net of tax	(12)	(7)	(9)
Prior Service Cost (Credit) [Member]
Before-Tax Amount
Other comprehensive income (loss), before reclassifications, before tax	(4)		(19)
Reclassification from accumulated other comprehensive loss, current period, before tax	6	(10)	(22)
Tax Expense (Benefit)
Other comprehensive income (loss), before reclassifications, tax expense (benefit)	(1)		(4)
Reclassification from accumulated other comprehensive loss, current period, tax expense (benefit)	1	(3)	(5)
Net Amount
Other comprehensive income (loss), before reclassifications, net of tax	(3)		(15)
Reclassification from accumulated other comprehensive loss, current period, net of tax	5	(7)	(17)
Miscellaneous Gain (Loss) [Member]
Before-Tax Amount
Other comprehensive income (loss), before reclassifications, before tax	0	0	0
Tax Expense (Benefit)
Other comprehensive income (loss), before reclassifications, tax expense (benefit)	(1)	1	2
Net Amount
Other comprehensive income (loss), before reclassifications, net of tax	1	(1)	(2)
Settlement Loss [Member]
Before-Tax Amount
Reclassification from accumulated other comprehensive loss, current period, before tax	6	5	2
Tax Expense (Benefit)
Reclassification from accumulated other comprehensive loss, current period, tax expense (benefit)	2	1	0
Net Amount
Reclassification from accumulated other comprehensive loss, current period, net of tax	4	4	2
Net Gain (Loss) from Derivative Instruments Designated and Qualifying as Cash Flow Hedges [Member]
Before-Tax Amount
Other comprehensive income (loss), before reclassifications, before tax	3	30	82
Reclassification from accumulated other comprehensive loss, current period, before tax	21	(117)	8
Other comprehensive income (loss) before income tax expense (benefit)	24	(87)	90
Tax Expense (Benefit)
Other comprehensive income (loss), before reclassifications, tax expense (benefit)	0	3	8
Reclassification from accumulated other comprehensive loss, current period, tax expense (benefit)	2	(13)	1
Income tax expense (benefit) related to items of other comprehensive income (loss)	2	(10)	9
Net Amount
Other comprehensive income (loss), before reclassifications, net of tax	3	27	74
Reclassification from accumulated other comprehensive loss, current period, net of tax	19	(104)	7
Other comprehensive income (loss)	$ 22	$ (77)	$ 81