v2.4.0.6

Debt (Details 2) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012
Long-term debt maturities
2012	$ 67
2013	1,601
2014	2,986
2015	1,840
2016	1,080
2017	1,274
2018	1,299
2019	1,170
2020	698
2021	168
Thereafter	165
Subtotal	12,348
Unamortized (discounts) premiums, net	86
Total	12,434
Wholly Owned [Member]
Long-term debt maturities
2012	13
2013	973
2014	1,951
2015	1,818
2016	957
2017	1,271
2018	1,226
2019	1,170
2020	697
2021	167
Thereafter	164
Subtotal	10,407
Unamortized (discounts) premiums, net	58
Total	10,465
Wholly Owned [Member] | Senior notes [Member]
Long-term debt maturities
2012
2013	376
2014	374
2015	287
2016	640
2017	700
2018	900
2019	647
2020	687
Subtotal	4,611
Unamortized (discounts) premiums, net	74
Total	4,685
Wholly Owned [Member] | Exchangeable Notes [Member]
Long-term debt maturities
2012
2013	482
2015	460
Thereafter	10
Subtotal	952
Unamortized (discounts) premiums, net	(74)
Total	878
Wholly Owned [Member] | Credit Facilities [Member]
Long-term debt maturities
2014	280
2015	858
Subtotal	1,138
Total	1,138
Wholly Owned [Member] | Other debt [Member]
Long-term debt maturities
2012	1
2013	1
2014	631
2015	1
2016	1
2017	1
2018	1
2019	1
2020	1
Thereafter	10
Subtotal	649
Total	649
Wholly Owned [Member] | Mortgage Debt [Member]
Long-term debt maturities
2012	12
2013	114
2014	666
2015	212
2016	316
2017	570
2018	325
2019	522
2020	9
2021	167
Thereafter	144
Subtotal	3,057
Unamortized (discounts) premiums, net	58
Total	3,115
Consolidated Entities [Member]
Long-term debt maturities
2012	54
2013	628
2014	1,035
2015	22
2016	123
2017	3
2018	73
2020	1
2021	1
Thereafter	1
Subtotal	1,941
Unamortized (discounts) premiums, net	28
Total	$ 1,969

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