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Summary of Changes to Restructuring-Related Liabilities (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning | $ 6 | $ 2 | $ 4
Restructuring and other related charges | (118) | (80) | (22)
Balance, ending | 9 | 6 | 2
Americas |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning | 2 | 0 | 1
Balance, ending | 3 | 2 | 0
International |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning | 4 | 2 | 3
Balance, ending | 6 | 4 | 2
Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning | 3 | 1 | 4
Balance, ending | 4 | 3 | 1
Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning | 1 | 0 | 0
Balance, ending | 2 | 1 | 0
Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Balance, beginning | 2 | 1 | 0
Balance, ending | 3 | 2 | 1
2014 T15 Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (1)
Cash payment/utilization |  |  | 1
2014 T15 Restructuring [Member] | Americas |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | 0
Cash payment/utilization |  |  | 0
2014 T15 Restructuring [Member] | International |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (1)
Cash payment/utilization |  |  | 1
2014 T15 Restructuring [Member] | Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (1)
Cash payment/utilization |  |  | 1
2014 T15 Restructuring [Member] | Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | 0
Cash payment/utilization |  |  | 0
2014 T15 Restructuring [Member] | Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | 0
Cash payment/utilization |  |  | 0
T19 Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (14) | (55) |
Cash payment/utilization | 20 | 51 |
T19 Restructuring [Member] | Americas |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (14) | (39) |
Cash payment/utilization | 16 | 38 |
T19 Restructuring [Member] | International |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | 0 | (16) |
Cash payment/utilization | 4 | 13 |
T19 Restructuring [Member] | Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | 0 | (24) |
Cash payment/utilization | 5 | 21 |
T19 Restructuring [Member] | Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | 0 | 0 |
Cash payment/utilization | 0 | 0 |
T19 Restructuring [Member] | Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (14) | (31) |
Cash payment/utilization | 15 | 30 |
Brazil Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | 0 | (7) |
Cash payment/utilization | 1 | 6 |
Brazil Restructuring [Member] | Americas |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  | (7) |
Cash payment/utilization | 1 | 6 |
Brazil Restructuring [Member] | International |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  | 0 |
Cash payment/utilization | 0 | 0 |
Brazil Restructuring [Member] | Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (1) | (1) |
Cash payment/utilization | 0 | 1 |
Brazil Restructuring [Member] | Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (1) | (1) |
Cash payment/utilization | 1 | 0 |
Brazil Restructuring [Member] | Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (2) | (5) |
Cash payment/utilization | 2 | 5 |
2018 Truck Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (5)
Cash payment/utilization |  |  | 5
2018 Truck Restructuring [Member] | Americas |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (5)
Cash payment/utilization |  |  | 5
2018 Truck Restructuring [Member] | International |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | 0
Cash payment/utilization |  |  | 0
2018 Truck Restructuring [Member] | Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (1)
Cash payment/utilization |  |  | 1
2018 Truck Restructuring [Member] | Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | 0
Cash payment/utilization |  |  | 0
2018 Truck Restructuring [Member] | Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (4)
Cash payment/utilization |  |  | 4
Workforce Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (13)
Cash payment/utilization |  | 1 | 12
Workforce Restructuring [Member] | Americas |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (4)
Cash payment/utilization |  | 0 | 4
Workforce Restructuring [Member] | International |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (9)
Cash payment/utilization |  | 1 | 8
Workforce Restructuring [Member] | Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (11)
Cash payment/utilization |  | 1 | 11
Workforce Restructuring [Member] | Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | 0
Cash payment/utilization |  | 0 | 0
Workforce Restructuring [Member] | Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (2)
Cash payment/utilization |  | $ 0 | 1
T17 Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (2)
Cash payment/utilization |  |  | 5
T17 Restructuring [Member] | Americas |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (2)
Cash payment/utilization |  |  | 3
T17 Restructuring [Member] | International |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | 0
Cash payment/utilization |  |  | 2
T17 Restructuring [Member] | Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | 0
Cash payment/utilization |  |  | 3
T17 Restructuring [Member] | Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | 0
Cash payment/utilization |  |  | 0
T17 Restructuring [Member] | Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges |  |  | (2)
Cash payment/utilization |  |  | $ 2
2020 Optimization |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (79) |  |
Cash payment/utilization | 71 |  |
2020 Optimization | Americas |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (31) |  |
Cash payment/utilization | 29 |  |
2020 Optimization | International |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (48) |  |
Cash payment/utilization | 42 |  |
2020 Optimization | Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (73) |  |
Cash payment/utilization | 68 |  |
2020 Optimization | Facility Closing [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (3) |  |
Cash payment/utilization | 2 |  |
2020 Optimization | Other Restructuring [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other related charges | (3) |  |
Cash payment/utilization | $ 1 |  |

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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