Cash, Cash Equivalents, and Marketable Securities (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended | | |
Jun. 30, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Dec. 31, 2017 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Total cash and cash equivalents | $ 22,117 | $ 16,718 | | |
Restricted cash | 189 | 189 | | |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 22,306 | 16,907 | $ 17,021 | $ 18,638 |
Fair Value, Measurements, Recurring [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 15,931 | 17,233 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 7,028 | 2,221 | | |
Cash, Cash Equivalents, and Short-term Investments | 15,089 | 14,497 | | |
U.S. government | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 2,758 | 3,303 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,820 | 359 | | |
U.S. government agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 1,789 | 2,018 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,730 | 521 | | |
Non-U.S. government and agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 5,494 | 5,284 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 2,074 | 283 | | |
Corporate debt | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 5,162 | 5,812 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,404 | 1,058 | | |
Equities (a) | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 277 | 424 | | |
Other marketable securities | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 451 | 392 | | |
Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 387 | 2,674 | | |
Total cash and cash equivalents | 9,381 | 7,058 | | |
Restricted cash | 41 | 16 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 19 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2,683 | 6,534 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 8 | 79 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 3,070 | 9,208 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 8 | 98 | | |
Operating Segments | Automotive | Fair Value, Measurements, Recurring [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 13,684 | 15,925 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 3,822 | 1,059 | | |
Cash, Cash Equivalents, and Short-term Investments | 5,559 | 5,999 | | |
Operating Segments | Automotive | U.S. government | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 2,420 | 3,014 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,245 | 220 | | |
Operating Segments | Automotive | U.S. government agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 1,654 | 1,953 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 881 | 496 | | |
Operating Segments | Automotive | Non-U.S. government and agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 4,145 | 4,674 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 1,199 | 169 | | |
Operating Segments | Automotive | Corporate debt | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 4,962 | 5,614 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 497 | 174 | | |
Operating Segments | Automotive | Equities (a) | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 277 | 424 | | |
Operating Segments | Automotive | Other marketable securities | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 226 | 246 | | |
Operating Segments | Mobility | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Total cash and cash equivalents | 118 | 53 | | |
Restricted cash | 24 | 33 | | |
Operating Segments | Mobility | Fair Value, Measurements, Recurring [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 0 | 0 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Cash, Cash Equivalents, and Short-term Investments | 118 | 53 | | |
Operating Segments | Mobility | U.S. government | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 0 | 0 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Operating Segments | Mobility | U.S. government agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 0 | 0 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Operating Segments | Mobility | Non-U.S. government and agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 0 | 0 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Operating Segments | Mobility | Corporate debt | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 0 | 0 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 0 | 0 | | |
Operating Segments | Mobility | Equities (a) | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 0 | 0 | | |
Operating Segments | Mobility | Other marketable securities | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 0 | 0 | | |
Operating Segments | Ford Credit | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Total cash and cash equivalents | 12,618 | 9,607 | | |
Restricted cash | 124 | 140 | | |
Operating Segments | Ford Credit | Fair Value, Measurements, Recurring [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 2,247 | 1,308 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 3,206 | 1,162 | | |
Cash, Cash Equivalents, and Short-term Investments | 9,412 | 8,445 | | |
Operating Segments | Ford Credit | U.S. government | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 338 | 289 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 575 | 139 | | |
Operating Segments | Ford Credit | U.S. government agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 135 | 65 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 849 | 25 | | |
Operating Segments | Ford Credit | Non-U.S. government and agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 1,349 | 610 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 875 | 114 | | |
Operating Segments | Ford Credit | Corporate debt | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 200 | 198 | | |
Cash and Cash Equivalents, Fair Value Disclosure | 907 | 884 | | |
Operating Segments | Ford Credit | Equities (a) | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 0 | 0 | | |
Operating Segments | Ford Credit | Other marketable securities | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable securities | 225 | 146 | | |
Equity Method Investments | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Marketable Securities, Unrealized Gain (Loss) | (147) | 25 | | |
Corporate debt | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 82 | 1,816 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 16 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 379 | 856 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 1 | 17 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 461 | 2,672 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 1 | 33 | | |
Non-U.S. government and agencies | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 27 | 341 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 1 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1,076 | 2,445 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 3 | 36 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1,103 | 2,786 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 3 | 37 | | |
U.S. government agencies | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 85 | 193 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 1 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 959 | 1,596 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 3 | 17 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1,044 | 1,789 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | 3 | 18 | | |
U.S. government | Operating Segments | Automotive | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 183 | 199 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 1 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 249 | 1,637 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 | 9 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 432 | 1,836 | | |
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ 0 | $ 10 | | |