Debt - Public Unsecured Debt Securities (Details) - Operating Segments - Company excluding Ford Credit - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Debentures due September 15, 2021 [Member] | Corporate debt
Debt Instrument [Line Items]
Debt, principal amount	$ 0		$ 180
Debt Instrument, Interest Rate, Stated Percentage	9.215%
Corporate debt
Debt Instrument [Line Items]
Debt, principal amount	$ 16,029		19,057
Debt Instrument, Repurchase Amount, Including Fees	9,300
Gain (Loss) on Repurchase of Debt Instrument, Including Fees	1,700
Debt Instrument, Repurchased Face Amount	7,600
Corporate debt | Debentures due January 15, 2022 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 86		86
Debt Instrument, Interest Rate, Stated Percentage	8.875%
Corporate debt | Notes due April 21, 2023
Debt Instrument [Line Items]
Debt, principal amount	$ 0		3,500
Debt Instrument, Interest Rate, Stated Percentage	8.50%
Corporate debt | 9.000% Notes due April 22, 2025
Debt Instrument [Line Items]
Debt, principal amount	$ 1,058		3,500
Debt Instrument, Interest Rate, Stated Percentage	9.00%
Corporate debt | Debentures due November 15, 2025 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 176		209
Debt Instrument, Interest Rate, Stated Percentage	7.125%
Corporate debt | Debentures due August 1, 2026 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 172		193
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Corporate debt | Notes Due December 8, 2026 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 1,500		1,500
Debt Instrument, Interest Rate, Stated Percentage	4.346%
Corporate debt | Debentures due February 15, 2028 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 104		104
Debt Instrument, Interest Rate, Stated Percentage	6.625%
Corporate debt | Debentures due October 1, 2028 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 446		638
Debt Instrument, Interest Rate, Stated Percentage	6.625%
Corporate debt | Debentures due February 1, 2029 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 202		260
Debt Instrument, Interest Rate, Stated Percentage	6.375%
Corporate debt | 9.625% Notes due April 22, 2030 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 432		1,000
Debt Instrument, Interest Rate, Stated Percentage	9.625%
Corporate debt | GLOBLS due July 16 2031 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 1,070		1,794
Debt Instrument, Interest Rate, Stated Percentage	7.45%
Corporate debt | Debentures due January 15, 2032 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 108		151
Debt Instrument, Interest Rate, Stated Percentage	8.90%
Corporate debt | Debentures due February 15, 2032 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 4		4
Debt Instrument, Interest Rate, Stated Percentage	9.95%
Corporate debt | Notes Due January 15, 2043 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 2,000		2,000
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Corporate debt | Debentures due June 15, 2043 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 73		73
Debt Instrument, Interest Rate, Stated Percentage	7.75%
Corporate debt | Debentures due November 1, 2046 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 398		398
Debt Instrument, Interest Rate, Stated Percentage	7.40%
Corporate debt | Notes Due December 8, 2046 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 1,300		1,300
Debt Instrument, Interest Rate, Stated Percentage	5.291%
Corporate debt | Debentures due February 15, 2047 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 114		181
Debt Instrument, Interest Rate, Stated Percentage	9.98%
Corporate debt | Notes Due June 1, 2059 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 750		750
Debt Instrument, Interest Rate, Stated Percentage	6.20%
Corporate debt | Notes Due December 1, 2059 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 800		800
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Corporate debt | Debentures due May 15, 2097 [Member]
Debt Instrument [Line Items]
Debt, principal amount	$ 142		142
Debt Instrument, Interest Rate, Stated Percentage	7.70%
Corporate debt | 3.25% Notes due March 1, 2030
Debt Instrument [Line Items]
Debt, principal amount	$ 2,500		0
Debt Instrument, Interest Rate, Stated Percentage	3.25%
Corporate debt | Notes due March 1, 2030
Debt Instrument [Line Items]
Debt, principal amount	$ 294		294
Convertible Debt | Zero Percent Convertible Senior Notes Due 2026 Over Allotment Option
Debt Instrument [Line Items]
Debt, principal amount		$ 300
Convertible Debt | Zero Percent Convertible Senior Notes Due 2026
Debt Instrument [Line Items]
Debt, principal amount	$ 2,300	$ 2,300	$ 0
Debt Instrument, Interest Rate, Stated Percentage	0.00%	0.00%
Convertible Debt | Notes due March 1, 2030
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	9.30%