Post-Employment Benefits - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Abbott Stock Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Plan contributions	$ 190	$ 181	$ 164
Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Unfunded commitments to investments in the private funds	0	0
Maximum amount of fund with redemption limit to 33%	270
Maximum amount of fund with redemption limit to 25%	$ 290
Maximum redemption fund percentage of 35%	33.00%
Maximum redemption fund percentage of 25%	25.00%
Investments subject to a lock	$ 70
Absolute Return Fund
Defined Benefit Plan Disclosure [Line Items]
Unfunded commitments to investments in the private funds	0	0
Private Funds
Defined Benefit Plan Disclosure [Line Items]
Unfunded commitments to investments in the private funds	$ 569	585
Minimum | Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	2 days
Minimum | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	2 days
Minimum | Absolute Return Fund
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	45 days
Maximum | Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	30 days
Maximum | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	60 days
Maximum | Absolute Return Fund
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	90 days
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan gains that decreased the projected benefit obligations	$ 3,645	463
Accumulated benefit obligations	8,400	11,500
Net actuarial (gains) losses, net of any prior service credits	(858)	(1,141)	611
Company contributions	413	418
Defined benefit plan, expected contributions in 2023	407
Defined Benefit Plans | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligations	2,200	3,700
Medical and Dental Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan gains that decreased the projected benefit obligations	437	16
Net actuarial (gains) losses, net of any prior service credits	(374)	(45)	$ (23)
Company contributions	$ 35	$ 35