Consolidated Statements of Income (Unaudited) (USD $)
In Millions, except Per Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Revenues    
Owned, leased and consolidated joint venture hotels $ 316 $ 364
Vacation ownership and residential sales and services 187 174
Management fees, franchise fees and other income 240 248
Other revenues from managed and franchised properties 672 672
Total revenues 1,415 1,458
Costs and Expenses    
Owned, leased and consolidated joint venture hotels 262 301
Vacation ownership and residential sales and services 137 128
Selling, general, administrative and other 91 95
Restructuring and other special charges, net 31  
Depreciation 62 60
Amortization 7 8
Other expenses from managed and franchised properties 672 672
Total cost and expenses 1,262 1,264
Operating income 153 194
Equity earnings and gains from unconsolidated ventures, net 15 9
Interest expense, net of interest income of $1 and $1 (31) (23)
Gain (loss) on asset dispositions and impairments, net 14 (36)
Income from continuing operations before taxes and noncontrolling interests 151 144
Income tax expense (52) (8)
Income from continuing operations 99 136
Discontinued operations:    
Gain on dispositions, net of tax expense (benefit) of $0 and $(1)   1
Net income attributable to Starwood $ 99 $ 137
Earnings Per Share - Basic    
Continuing operations $ 0.59 $ 0.71
Discontinued operations   $ 0.01
Net income $ 0.59 $ 0.72
Earnings Per Share - Diluted    
Continuing operations $ 0.58 $ 0.71
Discontinued operations   $ 0.01
Net income $ 0.58 $ 0.72
Weighted average number of shares 170 190
Weighted average number of shares assuming dilution 171 192
Dividends declared per share $ 0.375 $ 1.000