Amount expected to be recognized in earnings for the specified restructuring cost.

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The expected number of positions to be eliminated as a result of restructuring activities.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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2018 Global Restructuring Program Narrative (Details) $ in Millions	12 Months Ended	36 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2020 USD ($) Employee	Dec. 31, 2019 USD ($)	Dec. 31, 2017 USD ($)
Restructuring Cost and Reserve
Restructuring liabilities recorded in accrued expenses	$ 118			$ 0
2018 Global Restructuring Program
Restructuring Cost and Reserve
Restructuring liabilities recorded in accrued expenses	118
Restructuring liabilities recorded in other liabilities	92
2018 Global Restructuring Program \| After Tax
Restructuring Cost and Reserve
Restructuring Charges	793
2018 Global Restructuring Program \| Before Tax
Restructuring Cost and Reserve
Restructuring Charges	$ 1,036
2018 Global Restructuring Program \| Minimum \| Scenario, Forecast
Restructuring Cost and Reserve
Expected Number of Positions Eliminated \| Employee		5,000
2018 Global Restructuring Program \| Minimum \| After Tax \| Scenario, Forecast
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost		$ 1,350	$ 470
2018 Global Restructuring Program \| Minimum \| Before Tax \| Scenario, Forecast
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost		1,700	600
2018 Global Restructuring Program \| Minimum \| Cash charges \| Scenario, Forecast
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost		900
2018 Global Restructuring Program \| Minimum \| Non-cash charges \| Before Tax \| Scenario, Forecast
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost		$ 800
2018 Global Restructuring Program \| Maximum \| Scenario, Forecast
Restructuring Cost and Reserve
Expected Number of Positions Eliminated \| Employee		5,500
2018 Global Restructuring Program \| Maximum \| After Tax \| Scenario, Forecast
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost		$ 1,500	570
2018 Global Restructuring Program \| Maximum \| Before Tax \| Scenario, Forecast
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost		1,900	$ 750
2018 Global Restructuring Program \| Maximum \| Cash charges \| Scenario, Forecast
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost		1,000
2018 Global Restructuring Program \| Maximum \| Non-cash charges \| Before Tax \| Scenario, Forecast
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost		$ 900