| In millions, except per share items | Dec-31-10 | Dec-31-09 | Dec-31-08 | Dec-31-07 | Dec-31-06 | Dec-31-05 | Dec-31-04 | Dec-31-03 |
| | 10-K/A | 10-K/A | 10-K/A | 10-K | 10-K | 10-K/A | 10-K | 10-K |
| Operating activities: | | | | | | | | |
| Net earnings (loss) attributable to controlling interests | -1,270.5 | 22.8 | -453.8 | 1,053.1 | | | | |
| Adjustments to reconcile net earnings (loss) to net cash from operating activities: | | | | | | | | |
| Noncontrolling interest share in earnings (loss), net | 0.0 | 1.3 | -6.2 | | | | | |
| Straight-lined rents | -41.0 | -39.0 | -34.1 | | | | | |
| Cost of share-based compensation awards | 25.1 | 17.2 | 28.3 | 23.9 | | | | |
| Depreciation and amortization | 356.7 | 327.1 | 351.0 | 311.9 | | | | |
| Loss (earnings) from unconsolidated investees | -23.7 | -28.9 | 72.0 | -105.6 | | | | |
| Changes in operating receivables and distributions from unconsolidated investees | 79.7 | 69.7 | 20.0 | 74.3 | | | | |
| Amortization of deferred loan costs | 32.4 | 17.1 | 12.2 | 10.4 | | | | |
| Amortization of debt discount, net | 47.1 | 67.5 | 63.7 | 16.0 | | | | |
| Debt consent solicitation expenses | | 14.5 | | | | | | |
| Impairment of goodwill and other assets | | | | | | | | |
| Impairment related to assets held for sale - China operations | | | | | | | | |
| Impairment of real estate properties | | | | | | | | |
| Gains on dispositions of assets included in discontinued operations | | | | | | | | |
| Gains recognized on disposition of investments in Japan property funds | | | | | | | | |
| Gains recognized on property dispositions, net | -28.5 | -35.3 | -11.7 | | | | | |
| Loss (gain) on early extinguishment of debt | 201.5 | -172.3 | -90.7 | | | | | |
| Unrealized foreign currency exchange losses (gains), net | 11.5 | -58.1 | 144.4 | 16.2 | | | | |
| Deferred income tax expense (benefit) | -52.2 | -23.3 | 4.1 | | | | | |
| Property Plant And Equipment Dispositions | | | | | | | | |
| Decrease in restricted cash, accounts receivable and other assets | 63.7 | 102.5 | 78.7 | -130.8 | | | | |
| Decrease in accounts payable and accrued expenses and other liabilities | -75.8 | -244.1 | -63.5 | 216.3 | | | | |
| Net cash provided by operating activities | 240.8 | 89.1 | 888.3 | 1,232.9 | | | | |
| |
| Investing activities: | | | | | | | | |
| Non-development capital expenditures | -28.6 | -26.5 | -36.9 | -37.9 | | | | |
| Proceeds from dispositions of real estate assets | 1,643.0 | 1,520.5 | 4,474.2 | 3,618.6 | | | | |
| Proceeds from disposition of China operations and Japan property funds | | 1,345.5 | | | | | | |
| Proceeds from repayment of notes receivable | 18.4 | 12.4 | 29.0 | 115.6 | | | | |
| Investments in notes receivable backed by real estate and advances on other notes receivable | -269.0 | -4.8 | -47.3 | | | | | |
| Net cash provided by (used in) investing activities | 733.3 | 1,235.3 | -1,346.6 | -4,079.5 | | | | |
| |
| Financing activities: | | | | | | | | |
| Proceeds from sales and issuances of common shares | 1,162.5 | 1,491.1 | 222.2 | 46.9 | | | | |
| Distributions paid on common shares | -280.7 | -271.8 | -542.8 | -472.6 | | | | |
| Dividends paid on preferred shares | -25.4 | -25.4 | -25.4 | -31.8 | | | | |
| Noncontrolling interest contributions (distributions), net | -1.6 | -1.5 | 23.8 | -9.3 | | | | |
| Debt and equity issuance costs paid | -76.6 | -125.2 | -12.1 | -15.8 | | | | |
| Net proceeds from (payments on) credit facilities | -246.3 | -2,400.2 | 743.9 | | | | | |
| Proceeds from issuance of senior and convertible senior notes and secured mortgage debt | 1,860.3 | 1,448.9 | 1,150.5 | 4,830.3 | | | | |
| Payments on senior notes, secured mortgage debt and assessment bonds | -257.5 | -351.8 | -985.2 | -1,174.3 | | | | |
| Net cash provided by (used in) financing activities | -969.8 | -1,462.6 | 358.1 | 2,741.7 | | | | |
| Effect of foreign currency exchange rate changes on cash | -1.0 | -2.0 | -14.0 | 29.0 | | | | |
| Net increase (decrease) in cash and cash equivalents | 3.3 | -140.3 | -114.1 | -75.9 | | | | |
| Cash and cash equivalents, beginning of period | 34.4 | 174.6 | 399.9 | 475.8 | | | | |
| Cash and cash equivalents, end of period | 37.6 | 34.4 | 174.6 | 399.9 | | | | |