| In millions, except per share items | Sep-30-14 | Jun-30-14 | Mar-31-14 | Dec-31-13 | Sep-30-13 | Jun-30-13 | Mar-31-13 | Dec-31-12 |
| | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| Revenues: | | | | | | | | |
| Service revenues | 766.0 | 763.0 | 763.0 | 763.0 | 731.0 | 717.0 | 702.0 | 704.0 |
| Product sales | 942.0 | 853.0 | 930.0 | 853.0 | 887.0 | 1,046.0 | 1,104.0 | 1,114.0 |
| Total revenues | 1,708.0 | 1,616.0 | 1,693.0 | 1,616.0 | 1,618.0 | 1,763.0 | 1,806.0 | 1,818.0 |
| Total revenues growth | 5.6% | -8.3% | -6.3% | -11.1% | -5.8% | -3.0% | -8.2% | -34.9% |
| Costs and expenses: | | | | | | | | |
| Product costs | 807.0 | 724.0 | 769.0 | | 710.0 | 801.0 | 790.0 | |
| Operating and maintenance expenses | 267.0 | 251.0 | 248.0 | | 265.0 | 289.0 | 257.0 | |
| Depreciation and amortization expenses | 209.0 | 207.0 | 208.0 | 193.0 | 201.0 | 191.0 | 196.0 | 199.0 |
| Selling, general, and administrative expenses | 129.0 | 132.0 | 130.0 | 123.0 | 130.0 | 131.0 | 130.0 | 145.0 |
| Net insurance recoveries - Geismar Incident | | -42.0 | -119.0 | | -50.0 | | | |
| Other (income) expense - net | -1.0 | 27.0 | 17.0 | | 21.0 | 4.0 | 1.0 | |
| Total costs and expenses | 1,411.0 | 1,299.0 | 1,253.0 | 1,331.0 | 1,277.0 | 1,416.0 | 1,374.0 | 1,454.0 |
| Operating income | 297.0 | 317.0 | 440.0 | 285.0 | 341.0 | 347.0 | 432.0 | 364.0 |
| Operating margin | 17.4% | 19.6% | 26.0% | 17.6% | 21.1% | 19.7% | 23.9% | 20.0% |
| Equity earnings (losses) | 36.0 | 32.0 | 23.0 | 20.0 | 31.0 | 35.0 | 18.0 | 24.0 |
| Interest incurred | -155.0 | -142.0 | -131.0 | -456.0 | -119.0 | -118.0 | -118.0 | -441.0 |
| |
| Interest capitalized | | | | | | | | |
| Other income (expense) - net | 13.0 | 7.0 | 3.0 | | 7.0 | 7.0 | 6.0 | |
| Provision (benefit) for income taxes | 9.0 | 5.0 | 8.0 | | -1.0 | 21.0 | 15.0 | |
| Net income | 218.0 | 234.0 | 352.0 | | 285.0 | 272.0 | 344.0 | |
| Less: Net income attributable to noncontrolling interests | 1.0 | 2.0 | | -1,709.0 | 1.0 | 1.0 | | |
| Net Income (Loss) Attributable to controlling interests | 217.0 | 232.0 | 352.0 | 209.0 | 284.0 | 271.0 | 344.0 | 291.0 |
| |
| Allocation of net income for calculation of earnings per common unit: | | | | | | | | |
| Net Income (Loss) Attributable to controlling interests | 217.0 | 232.0 | 352.0 | 209.0 | 284.0 | 271.0 | 344.0 | 291.0 |
| Allocation of net income to general partner | 171.0 | 167.0 | 180.0 | | 60.0 | 141.0 | 142.0 | |
| Allocation of net income to Class D units | 17.0 | 18.0 | 14.0 | | | | | |
| Allocation of net income to common units | 29.0 | 47.0 | 158.0 | | 224.0 | 130.0 | 202.0 | |
| |
| Basic net income per common unit | $0.07 | $0.11 | $0.36 | | $0.52 | $0.31 | $0.50 | |
| Diluted net income per common unit | $0.07 | $0.11 | $0.36 | | $0.52 | $0.31 | $0.50 | |
| |
| Basic weighted average number of common units outstanding (thousands) | 439.1 | 438.6 | 438.6 | | 428.7 | 413.9 | 402.0 | |
| Diluted weighted average number of common units outstanding (thousands) | 439.1 | 438.6 | 438.6 | | 428.7 | 413.9 | 402.0 | |
| Cash distributions per common unit | 0.0 | 0.0 | 0.0 | | 0.0 | 0.0 | 0.0 | |
| |
| Other Comprehensive Income (Loss): | | | | | | | | |
| Net unrealized gain (loss) from derivative instruments | | | | | | | | |
| Reclassifications into earnings of net derivative instruments (gain) loss | | | | | | | | |
| Foreign currency translation adjustments | | | | | | | | |
| Other comprehensive income (loss) | | | | | | | | |
| Comprehensive income | | | | | | | | |
| Less: Comprehensive income attributable to noncontrolling interests | | | | | | | | |
| Comprehensive income attributable to controlling interests | 164.0 | 271.0 | 313.0 | 208.0 | 302.0 | 246.0 | 325.0 | 277.0 |