Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Reconciliation of Basic Earnings per Share to Diluted Earnings per Share for Income from Continuing Operations

The following is a reconciliation of basic earnings per share to diluted earnings per share for income from continuing operations attributable to Starwood’s common stockholders (in millions, except per share data):

	Year Ended December 31,
	2015						2014						2013
	Earnings		Shares		Per Share		Earnings		Shares		Per Share		Earnings		Shares		Per Share
Basic earnings from continuing    operations attributable to Starwood’s    common stockholders	$	489		169	$	2.90	$	643		185	$	3.49	$	565		191	$	2.96
Effect of dilutive securities:
Employee options and    restricted stock awards		—		1				—		1				—		2
Diluted earnings from continuing    operations attributable to Starwood’s    common stockholders	$	489		170	$	2.88		643		186	$	3.46	$	565		193	$	2.92