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Consolidated Statements Of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Net income $ 582,237 $ 435,670 $ 413,566
Other comprehensive income:      
Net gain (loss) on cash flow hedges(1) (4,744) [1],[2] 13,889 [1],[2] 7,739 [1],[2]
Reclassification of net loss (gain) on cash flow hedges to income(1) 4,245 [1],[2] (2,924) [1],[2] (7,903) [1],[2]
Net actuarial (loss) gain(2) 14,089 [1],[3] (17,804) [1],[3] (37,058) [1],[3]
Plan amendment(2) 0 [3] 16,020 [1],[3] 0 [3]
Amortization of actuarial loss(2) 5,369 [1],[3] 4,626 [1],[3] 1,591 [1],[3]
Amortization of prior service credit(2) (3,405) [1],[3] (1,664) [1],[3] (544) [1],[3]
Settlement cost(2) 0 [3] 0 [3] 70 [1],[3]
Total other comprehensive income (loss) 15,554 12,143 (36,105)
Comprehensive income 597,791 447,813 377,461
Comprehensive loss attributable to non-controlling owners’ interest in consolidated subsidiaries 0 0 (63)
Comprehensive income attributable to partners’ capital $ 597,791 $ 447,813 $ 377,524
[1] Includes amounts allocated to the non-controlling owners' interest.
[2] (1) See Note 13–Derivative Financial Instruments for details of the amount of gain/loss recognized in AOCL on derivatives and the amount of gain/loss reclassified from AOCL into income.
[3] (2) See Note 10–Employee Benefit Plans for additional detail of the changes in employee benefit plan assets and benefit obligations that are recognized in other comprehensive income (loss).