Cash, Cash Equivalents, and Marketable Securities (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended | | |
Sep. 30, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Dec. 31, 2017 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Total cash and cash equivalents | $ 20,523 | $ 16,718 | | |
Restricted cash | 158 | 189 | | |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 20,681 | 16,907 | $ 18,755 | $ 18,638 |
Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Total cash and cash equivalents | 8,830 | 7,058 | | |
Debt Securities, Available-for-sale | 12,372 | 12,825 | | |
Restricted cash | 10 | 16 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 994 | 2,674 | | |
Operating Segments | Mobility | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Total cash and cash equivalents | 114 | 53 | | |
Restricted cash | 21 | 33 | | |
Operating Segments | Ford Credit | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Total cash and cash equivalents | 11,579 | 9,607 | | |
Restricted cash | 127 | 140 | | |
U.S. government | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 2,637 | 2,928 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 253 | 199 | | |
U.S. government agencies | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 1,666 | 1,902 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 171 | 193 | | |
Non-U.S. government and agencies | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 3,733 | 3,808 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 401 | 341 | | |
Corporate debt | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 4,133 | 3,980 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 141 | 1,816 | | |
Equities (a) | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable Securities, Unrealized Gain (Loss) | (72) | 25 | | |
Other marketable securities | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 203 | 207 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 28 | 125 | | |
Fair Value, Measurements, Recurring [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 5,879 | 2,221 | | |
Cash, Cash Equivalents, and Short-term Investments | 14,644 | 14,497 | | |
Debt Securities, Available-for-sale | 16,808 | 17,233 | | |
Fair Value, Measurements, Recurring [Member] | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 2,584 | 1,059 | | |
Cash, Cash Equivalents, and Short-term Investments | 6,246 | 5,999 | | |
Debt Securities, Available-for-sale | 13,354 | 15,925 | | |
Fair Value, Measurements, Recurring [Member] | Operating Segments | Mobility | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Cash, Cash Equivalents, and Short-term Investments | 114 | 53 | | |
Debt Securities, Available-for-sale | 0 | 0 | | |
Fair Value, Measurements, Recurring [Member] | Operating Segments | Ford Credit | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 3,295 | 1,162 | | |
Cash, Cash Equivalents, and Short-term Investments | 8,284 | 8,445 | | |
Debt Securities, Available-for-sale | 3,454 | 1,308 | | |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,491 | 359 | | |
Debt Securities, Available-for-sale | 3,415 | 3,303 | | |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,044 | 220 | | |
Debt Securities, Available-for-sale | 2,705 | 3,014 | | |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government | Operating Segments | Mobility | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Debt Securities, Available-for-sale | 0 | 0 | | |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government | Operating Segments | Ford Credit | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 447 | 139 | | |
Debt Securities, Available-for-sale | 710 | 289 | | |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Equities (a) | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 358 | 424 | | |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Equities (a) | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 358 | 424 | | |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Equities (a) | Operating Segments | Mobility | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 0 | 0 | | |
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Equities (a) | Operating Segments | Ford Credit | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 0 | 0 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government agencies | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,078 | 521 | | |
Debt Securities, Available-for-sale | 2,073 | 2,018 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government agencies | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 507 | 496 | | |
Debt Securities, Available-for-sale | 1,733 | 1,953 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government agencies | Operating Segments | Mobility | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Debt Securities, Available-for-sale | 0 | 0 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government agencies | Operating Segments | Ford Credit | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 571 | 25 | | |
Debt Securities, Available-for-sale | 340 | 65 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-U.S. government and agencies | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 2,107 | 283 | | |
Debt Securities, Available-for-sale | 5,948 | 5,284 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-U.S. government and agencies | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 702 | 169 | | |
Debt Securities, Available-for-sale | 4,021 | 4,674 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-U.S. government and agencies | Operating Segments | Mobility | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Debt Securities, Available-for-sale | 0 | 0 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-U.S. government and agencies | Operating Segments | Ford Credit | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,405 | 114 | | |
Debt Securities, Available-for-sale | 1,927 | 610 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Corporate debt | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,203 | 1,058 | | |
Debt Securities, Available-for-sale | 4,484 | 5,812 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Corporate debt | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 331 | 174 | | |
Debt Securities, Available-for-sale | 4,291 | 5,614 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Corporate debt | Operating Segments | Mobility | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Debt Securities, Available-for-sale | 0 | 0 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Corporate debt | Operating Segments | Ford Credit | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Cash and Cash Equivalents, Fair Value Disclosure | 872 | 884 | | |
Debt Securities, Available-for-sale | 193 | 198 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other marketable securities | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 530 | 392 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other marketable securities | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 246 | 246 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other marketable securities | Operating Segments | Mobility | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | 0 | 0 | | |
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other marketable securities | Operating Segments | Ford Credit | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Debt Securities, Available-for-sale | $ 284 | $ 146 | | |