Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Target Allocation (Details)

v3.10.0.1
Employee Benefit Plans - Target Allocation (Details)
Dec. 31, 2018
U.S. | Qualified | Minimum | Pension Plan | Equity securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 20.00%
U.S. | Qualified | Minimum | Pension Plan | Debt securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 45.00%
U.S. | Qualified | Minimum | Pension Plan | Real Estate  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 0.00%
U.S. | Qualified | Minimum | Pension Plan | Other  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 0.00%
U.S. | Qualified | Maximum | Pension Plan | Equity securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 50.00%
U.S. | Qualified | Maximum | Pension Plan | Debt securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 75.00%
U.S. | Qualified | Maximum | Pension Plan | Real Estate  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 10.00%
U.S. | Qualified | Maximum | Pension Plan | Other  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 5.00%
U.S. | Nonqualified | Minimum | Other Pension Plan | Equity securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 0.00%
U.S. | Nonqualified | Minimum | Other Pension Plan | Debt securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 95.00%
U.S. | Nonqualified | Minimum | Other Pension Plan | Real Estate  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 0.00%
U.S. | Nonqualified | Minimum | Other Pension Plan | Other  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 0.00%
U.S. | Nonqualified | Maximum | Other Pension Plan | Equity securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 5.00%
U.S. | Nonqualified | Maximum | Other Pension Plan | Debt securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 100.00%
U.S. | Nonqualified | Maximum | Other Pension Plan | Real Estate  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 5.00%
U.S. | Nonqualified | Maximum | Other Pension Plan | Other  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 5.00%
Non-U.S. | Minimum | Pension Plan | Equity securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 5.00%
Non-U.S. | Minimum | Pension Plan | Debt securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 40.00%
Non-U.S. | Minimum | Pension Plan | Real Estate  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 0.00%
Non-U.S. | Minimum | Pension Plan | Other  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 5.00%
Non-U.S. | Maximum | Pension Plan | Equity securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 35.00%
Non-U.S. | Maximum | Pension Plan | Debt securities  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 80.00%
Non-U.S. | Maximum | Pension Plan | Real Estate  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 15.00%
Non-U.S. | Maximum | Pension Plan | Other  
Defined Benefit Plan, Plan Assets, Allocations [Abstract]  
Target allocation, percentage 30.00%