Contract Balances (Contract Balances) (Details) - USD ($) $ in Millions |
12 Months Ended | ||||
---|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Jan. 01, 2018 |
|
Revenue from Contract with Customer [Abstract] | |||||
Unbilled receivables - current | $ 169.4 | $ 169.4 | $ 149.1 | ||
Contract liabilities - current | (714.1) | (714.1) | (605.5) | ||
Deferred revenue - non-current | (29.8) | (29.8) | (31.8) | ||
Net contract assets/(liabilities) | (574.5) | (574.5) | $ (488.2) | ||
Change in unbilled receivables - current | 20.3 | $ 14.0 | $ 13.5 | $ 1.2 | |
Change in contract liabilities - current | (108.6) | ||||
Change in deferred revenue - non-current | 2.0 | ||||
Change in net contract assets/(liabilities) | $ (86.3) |
X | ||||||||||
- Definition Contract With Customer, Liability, Noncurrent, Increase (Decrease) No definition available.
|
X | ||||||||||
- Definition Deferred Revenue, Billings In-Excess Of Revenues, And Customer Deposits No definition available.
|
X | ||||||||||
- Definition Deferred Revenue, Billings In-Excess Of Revenues, And Customer Deposits, Increase (Decrease) No definition available.
|
X | ||||||||||
- Definition Increase (Decrease) In Contract With Customer, Liability No definition available.
|
X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The increase (decrease) during the reporting period of the amount of revenue for work performed for which billing has not occurred, net of uncollectible accounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- References No definition available.
|
X | ||||||||||
- Definition Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|