Debt (Tables)

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Convertible Debenture Terms

The following table summarizes at March 31, 2020 the related balances, conversion rate and conversion price of the Debentures:

Outstanding principal amount	$	202
Unamortized debt discount	$	64
Net debt carrying amount	$	136
Equity component carrying amount	$	73
Conversion rate (shares of common stock per $1,000 of principal amount)	13.9862
Effective conversion price (per $1,000 of principal amount)	$	71.4990