XML 78 R60.htm IDEA: XBRL DOCUMENT
v3.20.4

Goodwill and Intangible Assets - Summary of Intangible Assets, Net (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Original Cost | $ 1,535.0 | $ 1,538.7
Accumulated Amortization | (1,005.2) | (886.2)
Accumulated Impairment Losses | (60.8) | (62.0)
Carrying Value | 469.0 | 590.5
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Original Cost | 581.5 | 585.2
Accumulated Amortization | (411.7) | (386.8)
Accumulated Impairment Losses | (17.6) | (20.1)
Carrying Value | 152.2 | 178.3
Developed technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Original Cost | 794.7 | 779.5
Accumulated Amortization | (532.9) | (440.3)
Accumulated Impairment Losses | (2.6) | (2.6)
Carrying Value | 259.2 | 336.6
IPRD |  |
Finite-Lived Intangible Assets [Line Items] |  |
Original Cost | 49.5 | 64.7
Accumulated Amortization | 0.0 | 0.0
Accumulated Impairment Losses | (25.4) | (24.1)
Carrying Value | 24.1 | 40.6
Licenses |  |
Finite-Lived Intangible Assets [Line Items] |  |
Original Cost | 30.0 | 30.0
Accumulated Amortization | 0.0 | 0.0
Accumulated Impairment Losses | 0.0 | 0.0
Carrying Value | 30.0 | 30.0
Other intangibles |  |
Finite-Lived Intangible Assets [Line Items] |  |
Original Cost | 79.3 | 79.3
Accumulated Amortization | (60.6) | (59.1)
Accumulated Impairment Losses | (15.2) | (15.2)
Carrying Value | $ 3.5 | $ 5.0

X
- Definition Finite-Lived Intangible Assets, Impaired, Accumulated Impairment Loss + References No definition available. + Details
Name: | on_FiniteLivedIntangibleAssetsImpairedAccumulatedImpairmentLoss
Namespace Prefix: | on_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 + Details
Name: | us-gaap_IntangibleAssetsNetExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_DevelopedTechnologyRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_InProcessResearchAndDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_LicenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OtherIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |