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Acquisitions and Dispositions - Gross Carrying Amount and Weighted-Average Useful Life Allocated to Intangible Assets (Details) - USD ($) $ in Millions |  | 3 Months Ended
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Jan. 22, 2021 | Mar. 31, 2021
Ondot |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 92 |
Weighted-Average Useful Life (in years) | 7 years |
Ondot | Acquired software and technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 60 |
Weighted-Average Useful Life (in years) | 6 years |
Ondot | Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 20 |
Weighted-Average Useful Life (in years) | 10 years |
Ondot | Non-compete agreements and other |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 12 |
Weighted-Average Useful Life (in years) | 3 years |
Other Acquisitions |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount |  | $ 81
Weighted-Average Useful Life (in years) |  | 11 years
Other Acquisitions | Acquired software and technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount |  | $ 14
Weighted-Average Useful Life (in years) |  | 8 years
Other Acquisitions | Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount |  | $ 32
Weighted-Average Useful Life (in years) |  | 14 years
Other Acquisitions | Residual buyouts |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount |  | $ 35
Weighted-Average Useful Life (in years) |  | 9 years

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=121600890&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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