The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

No definition available.

Name:	us-gaap_EarningsPerShareBasicAndDiluted
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

NET EARNINGS PER SHARE Additional Information (Details) shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017 $ / shares shares	Sep. 30, 2016 $ / shares	Sep. 30, 2017 $ / shares shares	Sep. 30, 2016 $ / shares	Dec. 31, 2016 shares	Jul. 01, 2016	Jun. 24, 2013 shares
Net earnings per share, basic and diluted \| $ / shares	$ 0.17	$ 0.30	$ 0.41	$ 0.64
Preference shares conversion ratio						1.6929
6.375 percent Mandatory Convertible Preference Shares, Series A
Preferred stock, shares outstanding							13.8
6.375 percent Mandatory Convertible Preference Shares, Series A \| 6.375 percent Mandatory Convertible Preference Shares, Series A
Preferred stock, shares outstanding	0.0		0.0		0.0