XML 37 R40.htm IDEA: XBRL DOCUMENT v2.3.0.15
Debt and Financing Costs (Details 1) (USD $)
In Millions
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Financing Costs, Net    
Interest expense$ 109$ 86$ 326$ 237
Amortization of deferred loan costs17410
Capitalized interest(69)(29)(193)(64)
Interest income(4)(5)(14)(9)
Financing costs, net$ 37$ 59$ 123$ 174