Commitments and Contingent Liabilities (Guarantees) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Guarantor Obligations [Line Items]
Guarantee obligations	$ 561
Guaranteed Obligations, Short-Term [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	494
Guarantee Obligations, Long-Term [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	67
Customer and Supplier Guarantee, Bank Borrowings [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	375	[1]
Guaranteed obligations maximum term	7	[1]
Customer and Supplier Guarantee, Bank Borrowings [Member] | Guaranteed Obligations, Short-Term [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	309	[1]
Customer and Supplier Guarantee, Bank Borrowings [Member] | Guarantee Obligations, Long-Term [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	66	[1]
Customer and Supplier Guarantee, Leases on Equipment and Facilities [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	1	[1]
Guaranteed obligations maximum term	5	[1]
Customer and Supplier Guarantee, Leases on Equipment and Facilities [Member] | Guaranteed Obligations, Short-Term [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	0	[1]
Customer and Supplier Guarantee, Leases on Equipment and Facilities [Member] | Guarantee Obligations, Long-Term [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	1	[1]
Equity Affiliates Guarantee, Bank Borrowings [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	185	[2]
Guaranteed obligations maximum term	1	[2]
Equity Affiliates Guarantee, Bank Borrowings [Member] | Guaranteed Obligations, Short-Term [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	185	[2]
Equity Affiliates Guarantee, Bank Borrowings [Member] | Guarantee Obligations, Long-Term [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	0	[2]
Customer and Supplier Guarantee [Member]
Guarantor Obligations [Line Items]
Guarantee obligations	$ 376
Collateral assets and personal guarantees percentage	54.00%

[1] Existing guarantees for customers and suppliers, as part of contractual agreements.

[2] Existing guarantees for equity affiliates' liquidity needs in normal operations.