(Loss) Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Schedule of earnings per share reconciliation

The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share of common stock:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions, except per share amounts)	2020		2019		2020		2019
Basic earnings per share:
Net (loss) earnings attributable to BorgWarner Inc.	$	(98)	$	172	$	31	$	332
Weighted average shares of common stock outstanding	206.0		205.7		205.8		206.1
Basic (loss) earnings per share of common stock	$	(0.47)	$	0.84	$	0.15	$	1.61
Diluted (loss) earnings per share:
Net (loss) earnings attributable to BorgWarner Inc.	$	(98)	$	172	$	31	$	332
Weighted average shares of common stock outstanding	206.0		205.7		205.8		206.1
Effect of stock-based compensation*	—		1.1		0.6		0.9
Weighted average shares of common stock outstanding including dilutive shares	206.0		206.8		206.4		207.0
Diluted (loss) earnings per share of common stock	$	(0.47)	$	0.83	$	0.15	$	1.60

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* The Company had a loss for the three months ended June 30, 2020. As a result, diluted loss per share is the same as basic loss per share in the period, as any dilutive securities would reduce the loss per share.