U.K. Pension Plan Weighted Average Expected Return on Plan Assets (Details) - Freightliner U.K. Pension Plan [Member]	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Expected Return on Plan Assets	5.90%
Growth, Private equity and infrastructure pooled funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Expected Yields	6.90%
Weighted Average Asset Allocations	81.00%
Weighted Average Expected Return on Plan Assets	5.60%
Defensive and government bond pooled fund plus cash[Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Expected Yields	2.30%
Weighted Average Asset Allocations	19.00%
Weighted Average Expected Return on Plan Assets	0.30%