Commitments and Contingent Liabilities (Guarantees) (Details) (USD $) In Millions, unless otherwise specified					3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Indemnification Agreements [Member]	Dec. 31, 2012 Indemnification Agreements [Member]	Mar. 31, 2013 Customer and Supplier Guarantee [Member]		Mar. 31, 2013 Customer and Supplier Guarantee, Bank Borrowings [Member] Y		Mar. 31, 2013 Customer and Supplier Guarantee, Equipment and Facility Leases [Member] Y		Mar. 31, 2013 Equity Affiliates, Bank Borrowings [Member] Y		Mar. 31, 2013 Guaranteed Obligations, Short-Term [Member]	Mar. 31, 2013 Guaranteed Obligations, Short-Term [Member] Customer and Supplier Guarantee, Bank Borrowings [Member]		Mar. 31, 2013 Guaranteed Obligations, Short-Term [Member] Customer and Supplier Guarantee, Equipment and Facility Leases [Member]		Mar. 31, 2013 Guaranteed Obligations, Short-Term [Member] Equity Affiliates, Bank Borrowings [Member]		Mar. 31, 2013 Guaranteed Obligations, Long-Term [Member]	Mar. 31, 2013 Guaranteed Obligations, Long-Term [Member] Customer and Supplier Guarantee, Bank Borrowings [Member]		Mar. 31, 2013 Guaranteed Obligations, Long-Term [Member] Customer and Supplier Guarantee, Equipment and Facility Leases [Member]		Mar. 31, 2013 Guaranteed Obligations, Long-Term [Member] Equity Affiliates, Bank Borrowings [Member]		Mar. 31, 2013 Performance Coatings [Member] Customer and Supplier Guarantee [Member]
Guarantor Obligations [Line Items]
Indemnifications, carrying amount			$ 31	$ 31
Guarantee obligations	$ 533	$ 535			$ 350	[1]	$ 349	[1]	$ 1	[1]	$ 183	[2]	$ 447	$ 265	[1]	$ 0	[1]	$ 182	[2]	$ 86	$ 84	[1]	$ 1	[1]	$ 1	[2]	$ 13
Collateral assets and personal guarantees percentage					51.00%
Guaranteed obligations, maximum term							5		4		2

[1] Existing guarantees for customers and suppliers arose as part of contractual agreements. As of March 31, 2013, approximately $13 of these guarantees relate to customers of the Performance Coatings business, which was sold in February 2013. See Note 2 for additional information.

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