Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customers [Abstract]

Disaggregation of Revenue [Table Text Block]

Disaggregation of Net Sales

Net sales recognized from contracts with customers, disaggregated by segment and geographical location, are presented in the following table for the years ended December 31, 2020, 2019 and 2018. Net sales are attributed to regions based on the location of production. Intersegment sales have been excluded from the table.

In 2019, we finalized the Casting Sale. The Casting Sale did not qualify for classification as discontinued operations, as it did not represent a strategic shift in our business that has had, or will have, a major effect on our operations and financial results. As such, we continue to present Casting as a segment in the tables below, which is comprised entirely of the U.S. casting operations that were included in the sale.


	Twelve Months Ended December 31, 2020
	Driveline		Metal Forming		Casting		Total
North America	$	2,770.1	$	855.0	$	—	$	3,625.1
Asia	433.7		43.8		—		477.5
Europe	352.5		198.0		—		550.5
South America	49.2		8.5		—		57.7
Total	$	3,605.5	$	1,105.3	$	—	$	4,710.8

	Twelve Months Ended December 31, 2019
	Driveline		Metal Forming		Casting		Total
North America	$	3,466.3	$	1,153.1	$	627.7	$	5,247.1
Asia	533.6		37.6		—		571.2
Europe	351.0		256.3		—		607.3
South America	98.8		6.5		—		105.3
Total	$	4,449.7	$	1,453.5	$	627.7	$	6,530.9

	Twelve Months Ended December 31, 2018
	Driveline		Metal Forming		Casting		Total
North America	$	3,823.1	$	1,275.9	$	741.3	$	5,840.3
Asia	634.4		43.9		—		678.3
Europe	329.0		293.1		—		622.1
South America	124.9		4.8		—		129.7
Total	$	4,911.4	$	1,617.7	$	741.3	$	7,270.4

Contract Assets and Liabilities

The following table summarizes our beginning and ending balances for accounts receivable and contract liabilities associated with our contracts with customers:



	Accounts Receivable, Net		Contract Liabilities (Current)		Contract Liabilities (Long-term)
December 31, 2019	$	815.4	$	18.9	$	83.7
December 31, 2020	793.2		23.4		91.0
Increase/(decrease)	$	(22.2)	$	4.5	$	7.3