Income Taxes (Reconciliation of Income Tax Provision) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Amount
U.S. statutory rate applied to income from continuing operations before income taxes and equity interests	$ 431	$ 508	$ 337
State income taxes, net of federal tax benefit(a)	34	31	25
Effect of changes in tax laws or rates enacted in the current period	119	0	(21)
Foreign-derived intangible income	(10)	(19)	(20)
Other	(24)	15	(9)
Research and development credits	(33)	(41)	(28)
Other	(8)	(6)	0
Changes in valuation allowances	52	(7)	38
Nontaxable or Nondeductible Items	12	18	5
Nigeria worthless stock deduction	0	(40)	0
Tax effects of the impairment of intangible assets	0	(9)	(43)
Other	(15)	(33)	(5)
Foreign tax effects	43	78	70
Changes in unrecognized tax benefits	(2)	(53)	(6)
Total Provision for income taxes	$ 599	$ 442	$ 343
Percent
U.S. statutory rate applied to income from continuing operations before income taxes and equity interests	21.00%	21.00%	21.00%
State income taxes, net of federal tax benefit(a)	1.70%	1.30%	1.60%
Effect of changes in tax laws or rates enacted in the current period	5.80%	0.00%	(1.30%)
Foreign-derived intangible income	(0.50%)	(0.80%)	(1.20%)
Research and development credits	(1.60%)	(1.70%)	(1.70%)
Other	(0.40%)	(0.20%)	0.00%
Changes in valuation allowances	2.50%	(0.30%)	2.40%
Other	(1.20%)	0.60%	(0.60%)
Nontaxable or Nondeductible Items	0.60%	0.70%	0.30%
Nigeria worthless stock deduction	0.00%	(1.70%)	0.00%
Tax effects of the impairment of intangible assets	0.00%	(0.40%)	(2.70%)
Other	(0.70%)	(1.40%)	(0.30%)
Foreign tax effects	2.10%	3.20%	4.40%
Changes in unrecognized tax benefits	(0.10%)	(2.20%)	(0.40%)
Effective tax rate	29.20%	18.30%	21.40%