Retirement Benefits - Changes in Level 3 Pension Benefit Plan Assets Measured at Fair Value on a Recurring Basis (Details) - Pension Plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 32,922	$ 45,909	$ 48,355
Fair Value at January 1	20	16
Attributable to Assets Held at December 31	0	(2)
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Attributable To Assets Sold	(4)	0
Net Purchases/ (Settlements)	(8)	5
Transfers Into/ (Out of) Level 3	1	1
Fair Value at December 31	9	20
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	21,344	33,085	$ 33,820
Fair Value at January 1	6,020	6,006
Attributable to Assets Held at December 31	(1,732)	(943)
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Attributable To Assets Sold	26	153
Net Purchases/ (Settlements)	(722)	687
Transfers Into/ (Out of) Level 3	217	117
Fair Value at December 31	3,809	6,020
Non-U.S. Plans | Ford Werke GmbH
Defined Benefit Plan Disclosure [Line Items]
Fair Value at January 1	4,700
Fair Value at December 31	2,500	4,700
Fair Value, Inputs, Level 1 | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	6,131	9,804
Fair Value, Inputs, Level 1 | Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	780	797
Fair Value Measured at Net Asset Value Per Share | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	6,306	6,689
Fair Value Measured at Net Asset Value Per Share | Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 1,998	$ 2,363