Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
Balance at beginning of year | $ 101.1 | $ 100.7 | $ 104.9 |
Additions for tax positions of prior years | 0.5 | 0.4 | 0.9 |
Reductions for tax positions of prior years | (0.1) | 0.0 | 0.0 |
Reductions for tax positions resulting from lapse of statute of limitations | 0.0 | 0.0 | (0.2) |
Settlements | 0.0 | 0.0 | (4.9) |
Balance at end of year | $ 101.5 | $ 101.1 | $ 100.7 |