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Business Acquisitions, Investments and Restructuring Charges (Narrative) (Details) - USD ($) $ in Millions		12 Months Ended
	Feb. 13, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Capital contributions to noncontrolling equity interest		$ 236	$ 222
Loss from unconsolidated equity method investments		255	94	$ 166
Tax credit related to investment			87	139
Restructuring charges		29	33	27
Restructuring expenditures		25	39	20
Contract Termination
Schedule of Equity Method Investments [Line Items]
Restructuring charges			9
Redesign Of Software Systems
Schedule of Equity Method Investments [Line Items]
Restructuring charges			24
Investment Tax Credit Carryforward
Schedule of Equity Method Investments [Line Items]
Income tax benefits		222	87
Certain Limited Liability Companies
Schedule of Equity Method Investments [Line Items]
Loss from unconsolidated equity method investments		254	102
Joint Venture with Landfill Gas to Energy Developer
Schedule of Equity Method Investments [Line Items]
Capital contributions to noncontrolling equity interest		98	68	137
Income tax benefits		6
Equity method investments		270	170
Joint Venture with Landfill Gas to Energy Developer \| ILLINOIS
Schedule of Equity Method Investments [Line Items]
Capital contributions to noncontrolling equity interest		35
Thermal Processing Facility
Schedule of Equity Method Investments [Line Items]
Capital contributions to noncontrolling equity interest		27
Tax credit related to investment		8
Ravago, Blue Polymers
Schedule of Equity Method Investments [Line Items]
Capital contributions to noncontrolling equity interest		38	9	$ 10
Equity method investments		$ 55	$ 19
Subsequent Event
Schedule of Equity Method Investments [Line Items]
Business combination, consideration transferred	$ 700