Consolidated Statement of Comprehensive Income (Unaudited) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Revenues:    
Service revenues $ 1,192 $ 763
Product sales 519 930
Total revenues 1,711 1,693
Costs and expenses:    
Product costs 463 769
Operating and maintenance expenses 380 248
Depreciation and amortization expenses 419 208
Selling, general, and administrative expenses 193 130
Net insurance recoveries - Geismar Incident 0 (119)
Other (income) expense - net 17 17
Total costs and expenses 1,472 1,253
Operating income 239 440
Equity earnings (losses) 51 23
Other investing income (loss) - net 1 0
Interest incurred (209) (131)
Interest capitalized 17 25
Other income (expense) - net 16 3
Income before Income Taxes 115 360
Provision (benefit) for income taxes 3 8
Net income (loss) 112 352
Less: Net income attributable to noncontrolling interests 23 0
Net Income (Loss) Attributable to controlling interests 89 352
Allocation of net income (loss) for calculation of earnings per common unit:    
Net Income (Loss) Attributable to controlling interests 89 352
Allocation of net income (loss) to general partner 195 180
Allocation of net income (loss) to Class B units (2) 0
Allocation of net income (loss) to Class D units 68 14
Allocation of net income (loss) to common units (172) 158
Basic earnings per common unit [Abstract]    
Basic net income (loss) per common unit $ (0.34) $ 0.44
Basic weighted average number of common units outstanding (thousands) 507,001 361,620
Diluted earnings per common unit    
Diluted net income (loss) per common unit $ (0.34) $ 0.44
Diluted weighted average number of common units outstanding (thousands) 507,001 361,620
Cash distributions per common unit $ 0.85 $ 0.9045
Other Comprehensive Income (Loss):    
Foreign currency translation adjustments (87) (39)
Other comprehensive income (loss) (87) (39)
Comprehensive income 25 313
Less: Comprehensive income attributable to noncontrolling interests 23 0
Comprehensive income attributable to controlling interests $ 2 $ 313