Commitments and Contingencies (Sunlight Entities) (Narrative) (Details) (Pending Litigation [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Sunlight Entities [Member]
Loss Contingencies [Line Items]
Projects or proceedings, number or quantity of	3
Liens sought, pending litigation	$ 50
Sunlight Entities [Member] | Construction Contracts [Member]
Loss Contingencies [Line Items]
Projects or proceedings, number or quantity of	3
Sunlight General Somerset [Member]
Loss Contingencies [Line Items]
Contract price, pending litigation	29
Sunlight General Morris [Member]
Loss Contingencies [Line Items]
Contract price, pending litigation	36
Sunlight General Sussex [Member]
Loss Contingencies [Line Items]
Contract price, pending litigation	$ 26