Consolidating Financial Information (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	$ 340	$ 938	$ 1,038
Cash Flows from Investing Activities:
Capital Expenditures	(923)	(1,168)	(1,127)
Asset Dispositions	18	25	16
Decrease (Increase) in Restricted Cash	5	14	11
Short Term Securities Acquired	(72)	(105)	(57)
Short Term Securities Redeemed	95	89	28
Capital Contributions Received and Loans Incurred	0	0	0
Capital Redemptions and Loans Paid	0	0	0
Other Transactions	26	9	6
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	(851)	(1,136)	(1,123)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	46us-gaap_ProceedsFromShortTermDebt	31us-gaap_ProceedsFromShortTermDebt	77us-gaap_ProceedsFromShortTermDebt
Short Term Debt and Overdrafts Paid	(24)us-gaap_RepaymentsOfShortTermDebt	(120)us-gaap_RepaymentsOfShortTermDebt	(156)us-gaap_RepaymentsOfShortTermDebt
Long Term Debt Incurred	1,842	1,913	3,531
Long Term Debt Paid	(1,555)us-gaap_RepaymentsOfLongTermDebt	(681)us-gaap_RepaymentsOfLongTermDebt	(3,717)us-gaap_RepaymentsOfLongTermDebt
Preferred Stock Dividends Paid	(15)	(29)	(29)
Common Stock Issued	39	26	3
Common Stock Repurchased	(234.0)	(4.0)	0
Common Stock Dividends Paid	(60)us-gaap_PaymentsOfDividendsCommonStock	(12)us-gaap_PaymentsOfDividendsCommonStock	0us-gaap_PaymentsOfDividendsCommonStock
Capital Contributions Received and Loans Incurred	0	0	0
Capital Redemptions and Loans Paid	0	0	0
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Transactions with Minority Interests in Subsidiaries	(49)	(26)	(71)
Debt Related Costs and Other Transactions	(1)	(16)	(64)
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	(11)	1,082	(426)
Effect of exchange rate changes on cash and cash equivalents	(313)	(169)	20
Net Change in Cash and Cash Equivalents	(835)	715	(491)
Cash and Cash Equivalents at Beginning of the Year	2,996	2,281	2,772
Cash and Cash Equivalents at End of the Year	2,161	2,996	2,281
Parent Company
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	(334)	17	335
Cash Flows from Investing Activities:
Capital Expenditures	(303)	(220)	(231)
Asset Dispositions	9	2	5
Decrease (Increase) in Restricted Cash	(1)	0	1
Short Term Securities Acquired	0	0	0
Short Term Securities Redeemed	0	0	0
Capital Contributions Received and Loans Incurred	(382)	(91)	(191)
Capital Redemptions and Loans Paid	459	214	81
Other Transactions	13	0	4
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	(205)	(95)	(331)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	22	14	0
Short Term Debt and Overdrafts Paid	(14)	(90)	0
Long Term Debt Incurred	601	900	800
Long Term Debt Paid	(608)	(11)	(762)
Preferred Stock Dividends Paid	(15)	(29)	(29)
Common Stock Issued	39	26	3
Common Stock Repurchased	(234.0)	(4.0)	0
Common Stock Dividends Paid	(60)	(12)	0
Capital Contributions Received and Loans Incurred	457	170	150
Capital Redemptions and Loans Paid	(244)	(403)	(200)
Intercompany Dividends Paid	0	0	0
Transactions with Minority Interests in Subsidiaries	0	0	(17)
Debt Related Costs and Other Transactions	0	(16)	(63)
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	(56)	545	(118)
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net Change in Cash and Cash Equivalents	(595)	467	(114)
Cash and Cash Equivalents at Beginning of the Year	1,269	802	916
Cash and Cash Equivalents at End of the Year	674	1,269	802
Guarantor Subsidiaries [Member]
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	195	16	(3)
Cash Flows from Investing Activities:
Capital Expenditures	(19)	(19)	(10)
Asset Dispositions	2	0	0
Decrease (Increase) in Restricted Cash	0	0	0
Short Term Securities Acquired	0	0	0
Short Term Securities Redeemed	0	0	0
Capital Contributions Received and Loans Incurred	0	(11)	(27)
Capital Redemptions and Loans Paid	0	0	0
Other Transactions	0	0	0
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	(17)	(30)	(37)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	0	0	0
Short Term Debt and Overdrafts Paid	(22)	(14)	0
Long Term Debt Incurred	0	0	0
Long Term Debt Paid	0	0	0
Preferred Stock Dividends Paid	0	0	0
Common Stock Issued	0	0	0
Common Stock Repurchased	0	0
Common Stock Dividends Paid	0	0
Capital Contributions Received and Loans Incurred	47	58	0
Capital Redemptions and Loans Paid	0	0	0
Intercompany Dividends Paid	(203)	0	(6)
Transactions with Minority Interests in Subsidiaries	0	0	0
Debt Related Costs and Other Transactions	0	0	0
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	(178)	44	(6)
Effect of exchange rate changes on cash and cash equivalents	(5)	(4)	2
Net Change in Cash and Cash Equivalents	(5)	26	(44)
Cash and Cash Equivalents at Beginning of the Year	94	68	112
Cash and Cash Equivalents at End of the Year	89	94	68
Non-Guarantor Subsidiaries
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	758	1,009	841
Cash Flows from Investing Activities:
Capital Expenditures	(607)	(940)	(892)
Asset Dispositions	7	23	11
Decrease (Increase) in Restricted Cash	6	14	10
Short Term Securities Acquired	(72)	(105)	(57)
Short Term Securities Redeemed	95	89	28
Capital Contributions Received and Loans Incurred	(457)	(170)	(150)
Capital Redemptions and Loans Paid	244	403	200
Other Transactions	13	9	2
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	(771)	(677)	(848)
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	60	121	77
Short Term Debt and Overdrafts Paid	(24)	(120)	(156)
Long Term Debt Incurred	1,241	1,013	2,731
Long Term Debt Paid	(947)	(670)	(2,955)
Preferred Stock Dividends Paid	0	0	0
Common Stock Issued	0	0	0
Common Stock Repurchased	0	0
Common Stock Dividends Paid	0	0
Capital Contributions Received and Loans Incurred	335	44	218
Capital Redemptions and Loans Paid	(459)	(214)	(81)
Intercompany Dividends Paid	(70)	(93)	(123)
Transactions with Minority Interests in Subsidiaries	(49)	(26)	(54)
Debt Related Costs and Other Transactions	(1)	0	(1)
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	86	55	(344)
Effect of exchange rate changes on cash and cash equivalents	(308)	(165)	18
Net Change in Cash and Cash Equivalents	(235)	222	(333)
Cash and Cash Equivalents at Beginning of the Year	1,633	1,411	1,744
Cash and Cash Equivalents at End of the Year	1,398	1,633	1,411
Consolidating Entries and Eliminations [Member]
Cash Flows from Operating Activities:
TOTAL CASH FLOWS FROM OPERATING ACTIVITIES	(279)	(104)	(135)
Cash Flows from Investing Activities:
Capital Expenditures	6	11	6
Asset Dispositions	0	0	0
Decrease (Increase) in Restricted Cash	0	0	0
Short Term Securities Acquired	0	0	0
Short Term Securities Redeemed	0	0	0
Capital Contributions Received and Loans Incurred	839	272	368
Capital Redemptions and Loans Paid	(703)	(617)	(281)
Other Transactions	0	0	0
TOTAL CASH FLOWS FROM INVESTING ACTIVITIES	142	(334)	93
Cash Flows from Financing Activities:
Short Term Debt and Overdrafts Incurred	(36)	(104)	0
Short Term Debt and Overdrafts Paid	36	104	0
Long Term Debt Incurred	0	0	0
Long Term Debt Paid	0	0	0
Preferred Stock Dividends Paid	0	0	0
Common Stock Issued	0	0	0
Common Stock Repurchased	0	0
Common Stock Dividends Paid	0	0
Capital Contributions Received and Loans Incurred	(839)	(272)	(368)
Capital Redemptions and Loans Paid	703	617	281
Intercompany Dividends Paid	273	93	129
Transactions with Minority Interests in Subsidiaries	0	0	0
Debt Related Costs and Other Transactions	0	0	0
TOTAL CASH FLOWS FROM FINANCING ACTIVITIES	137	438	42
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net Change in Cash and Cash Equivalents	0	0	0
Cash and Cash Equivalents at Beginning of the Year	0	0	0
Cash and Cash Equivalents at End of the Year	$ 0	$ 0	$ 0

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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