Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue Recognition [Line Items]
Deferred Service-Type Warranty Revenue	$ 27,067	$ 24,006	$ 19,465
Deferred Service-Type Revenue, Additions	43,381	38,736
Deferred Service-Type Revenue Recognized	(40,320)	(34,195)
Revenue	12,506,109	11,876,674	9,736,909
Contract with Customer, Refund Liability	97,000	105,000
Contract with Customer, Right to Recover Product	52,000	56,000
Revenue, Variable Consideration Reserve	108,000	103,000
North America [Member]
Revenue Recognition [Line Items]
Revenue	5,209,294	5,182,609	4,799,651
Europe [Member]
Revenue Recognition [Line Items]
Revenue	5,838,124	5,221,754	3,636,811
Specialty
Revenue Recognition [Line Items]
Revenue	1,464,042	1,477,680	1,305,516
Parts and Services
Revenue Recognition [Line Items]
Revenue	11,877,846	11,233,407	9,208,634
Parts and Services \| North America [Member]
Revenue Recognition [Line Items]
Revenue	4,600,903	4,558,220	4,278,531
Parts and Services \| Europe [Member]
Revenue Recognition [Line Items]
Revenue	5,817,547	5,202,231	3,628,906
Parts and Services \| Specialty
Revenue Recognition [Line Items]
Revenue	1,459,396	1,472,956	1,301,197
Other Revenue
Revenue Recognition [Line Items]
Revenue	$ 628,263	$ 643,267	$ 528,275

Deferred Service-Type Revenue, Additions

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- Definition

Deferred Service-Type Revenue, Revenue Recognized

+ References

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- Definition

Deferred Service-Type Warranty Revenue

+ References

No definition available.

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- Definition

Revenue, Variable Consideration Constraint Reserve - Estimate of variable consideration with probability of subsequent revenue.

+ References

No definition available.

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- Definition

Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 55
-Paragraph 27
-URI http://asc.fasb.org/extlink&oid=118944142&loc=SL49130611-203046-203046

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Amount of right to recover product from customer on settling refund liability.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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