Accumulated Other Comprehensive Income (Loss) - Amounts in OCI (Details) - USD ($) $ in Millions |
12 Months Ended |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
$ 208.5
|
$ 73.3
|
$ (73.0)
|
Amounts Arising During the Current Period, Income Tax |
(43.0)
|
(37.3)
|
20.2
|
Amounts Reclassified to Net Income (Loss), Pretax |
48.4
|
71.5
|
44.4
|
Amounts Reclassified to Net Income (Loss), income Tax |
(12.9)
|
(18.0)
|
(7.8)
|
Other comprehensive income (loss) |
201.0
|
89.5
|
(16.2)
|
Cost of revenues |
3,461.9
|
3,235.8
|
2,877.3
|
Selling, general and administrative expenses |
687.0
|
629.7
|
584.5
|
Interest and other income (expense) |
3.7
|
(7.0)
|
(37.7)
|
Other operating income (expense) |
25.3
|
(20.0)
|
15.6
|
Interest expense |
138.8
|
112.2
|
96.5
|
Benefit plan adjustments |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
197.3
|
120.5
|
(98.5)
|
Amounts Arising During the Current Period, Income Tax |
(45.4)
|
(28.0)
|
22.7
|
Amounts Reclassified to Net Income (Loss), Pretax |
41.5
|
64.6
|
56.7
|
Amounts Reclassified to Net Income (Loss), income Tax |
(10.1)
|
(16.3)
|
(12.7)
|
Other comprehensive income (loss) |
183.3
|
140.8
|
(31.8)
|
Foreign currency translation adjustments(b) |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
(6.5)
|
(52.6)
|
19.6
|
Amounts Arising During the Current Period, Income Tax |
2.7
|
(6.8)
|
0.0
|
Amounts Reclassified to Net Income (Loss), Pretax |
(5.8)
|
(4.1)
|
0.0
|
Amounts Reclassified to Net Income (Loss), income Tax |
1.4
|
1.0
|
0.0
|
Other comprehensive income (loss) |
(8.2)
|
(62.5)
|
19.6
|
Unrealized gains (losses) on available-for-sale securities |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
(1.2)
|
(0.1)
|
|
Amounts Arising During the Current Period, Income Tax |
0.5
|
0.0
|
|
Amounts Reclassified to Net Income (Loss), Pretax |
0.3
|
0.0
|
|
Amounts Reclassified to Net Income (Loss), income Tax |
(0.1)
|
0.0
|
|
Other comprehensive income (loss) |
(0.5)
|
(0.1)
|
0.0
|
Gains (losses) on cash flow hedges |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
25.2
|
8.1
|
1.1
|
Amounts Arising During the Current Period, Income Tax |
(0.8)
|
(2.5)
|
(2.5)
|
Amounts Reclassified to Net Income (Loss), Pretax |
12.4
|
11.0
|
(12.3)
|
Amounts Reclassified to Net Income (Loss), income Tax |
(4.1)
|
(2.7)
|
4.9
|
Other comprehensive income (loss) |
32.7
|
13.9
|
(8.8)
|
Gains (losses) on cash flow hedges | Reclassification out of Accumulated Other Comprehensive Income |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Other operating income (expense) |
8.9
|
(0.1)
|
(22.1)
|
Interest expense |
3.5
|
11.1
|
9.8
|
AOCI Attributable to Parent |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
214.8
|
75.9
|
(77.8)
|
Amounts Arising During the Current Period, Income Tax |
(43.0)
|
(37.3)
|
20.2
|
Amounts Reclassified to Net Income (Loss), Pretax |
48.4
|
71.5
|
44.4
|
Amounts Reclassified to Net Income (Loss), income Tax |
(12.9)
|
(18.0)
|
(7.8)
|
Other comprehensive income (loss) |
207.3
|
92.1
|
(21.0)
|
Benefit plan adjustments |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
0.4
|
(0.4)
|
0.2
|
Amounts Arising During the Current Period, Income Tax |
|
|
0.0
|
Amounts Reclassified to Net Income (Loss), Pretax |
|
|
0.0
|
Amounts Reclassified to Net Income (Loss), income Tax |
|
|
0.0
|
Other comprehensive income (loss) |
0.4
|
(0.4)
|
0.2
|
Foreign currency translation adjustments |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
(6.7)
|
(2.2)
|
4.6
|
Amounts Arising During the Current Period, Income Tax |
0.0
|
0.0
|
0.0
|
Amounts Reclassified to Net Income (Loss), Pretax |
0.0
|
0.0
|
0.0
|
Amounts Reclassified to Net Income (Loss), income Tax |
0.0
|
0.0
|
0.0
|
Other comprehensive income (loss) |
(6.7)
|
(2.2)
|
4.6
|
AOCI Attributable to Noncontrolling Interest |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
(6.3)
|
(2.6)
|
4.8
|
Amounts Arising During the Current Period, Income Tax |
0.0
|
0.0
|
0.0
|
Amounts Reclassified to Net Income (Loss), Pretax |
0.0
|
0.0
|
0.0
|
Amounts Reclassified to Net Income (Loss), income Tax |
0.0
|
0.0
|
0.0
|
Other comprehensive income (loss) |
(6.3)
|
(2.6)
|
4.8
|
Benefit plan adjustments(a) |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
197.7
|
120.1
|
(98.3)
|
Amounts Arising During the Current Period, Income Tax |
(45.4)
|
(28.0)
|
22.7
|
Amounts Reclassified to Net Income (Loss), Pretax |
41.5
|
64.6
|
56.7
|
Amounts Reclassified to Net Income (Loss), income Tax |
(10.1)
|
(16.3)
|
(12.7)
|
Other comprehensive income (loss) |
183.7
|
140.4
|
(31.6)
|
Benefit plan adjustments(a) | Reclassification out of Accumulated Other Comprehensive Income |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Cost of revenues |
6.3
|
7.2
|
7.7
|
Selling, general and administrative expenses |
1.9
|
2.0
|
2.1
|
Interest and other income (expense) |
16.7
|
38.7
|
37.9
|
Foreign currency translation adjustments(b) |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
(13.2)
|
(54.8)
|
24.2
|
Amounts Arising During the Current Period, Income Tax |
2.7
|
(6.8)
|
0.0
|
Amounts Reclassified to Net Income (Loss), Pretax |
(5.8)
|
(4.1)
|
0.0
|
Amounts Reclassified to Net Income (Loss), income Tax |
1.4
|
1.0
|
0.0
|
Other comprehensive income (loss) |
(14.9)
|
(64.7)
|
24.2
|
Unrealized gains (losses) on available-for-sale securities(c) |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
(1.2)
|
(0.1)
|
|
Amounts Arising During the Current Period, Income Tax |
0.5
|
0.0
|
|
Amounts Reclassified to Net Income (Loss), Pretax |
0.3
|
0.0
|
|
Amounts Reclassified to Net Income (Loss), income Tax |
(0.1)
|
0.0
|
|
Other comprehensive income (loss) |
(0.5)
|
(0.1)
|
|
Gains (losses) on cash flow hedges(d) |
|
|
|
Other Comprehensive Income Loss [Line Items] |
|
|
|
Amounts Arising During the Current Period, Pretax |
25.2
|
8.1
|
1.1
|
Amounts Arising During the Current Period, Income Tax |
(0.8)
|
(2.5)
|
(2.5)
|
Amounts Reclassified to Net Income (Loss), Pretax |
12.4
|
11.0
|
(12.3)
|
Amounts Reclassified to Net Income (Loss), income Tax |
(4.1)
|
(2.7)
|
4.9
|
Other comprehensive income (loss) |
$ 32.7
|
$ 13.9
|
$ (8.8)
|