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Revenue and Contracts with Customers (Contract with Customer Asset and Liability) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Deferred costs associated with deferred revenue | $ 137.2 | $ 137.2 |  | $ 151.9
Provision for Loss on Contract Change |  | (3.9) |  |
Provision for Loss on Contract Noncurrent Change |  | (0.7) |  |
Deferred revenue | 259.1 | 259.1 |  | 281.7
Deferred revenue – change |  | (22.6) |  |
Advances from customers, current | 16.9 | 16.9 |  | 1.5
Customer advances – change |  | 15.4 |  |
Advances from customer, noncurrent | 45.1 | 45.1 |  | 45.2
Advances from customers, noncurrent - change |  | (0.1) |  |
Deferred revenue, revenue recognized |  | (28.5) | $ 0.0 |
Provision for Loss on Contracts Total | 3.1 | 3.1 |  |
Provision for Loss on Contracts Utilized | 4.6 |  | $ 5.3 |
Government [Member] |  |  |  |
Provision for Loss on Contracts | 3.1 | 3.1 |  | 7.0
Provision for loss on contracts, noncurrent | $ 0.0 | $ 0.0 |  | $ 0.7

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130532-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130531-203044 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045 + Details
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- Definition Net amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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