Commitments and Contingent Liabilities (Guarantees) (Details) (USD $) In Millions, unless otherwise specified																								12 Months Ended
	Dec. 31, 2012 Indemnification Agreements [Member]	Dec. 31, 2011 Indemnification Agreements [Member]	Dec. 31, 2012 Customer and Supplier Guarantee, Bank Borrowings [Member] Y		Dec. 31, 2012 Customer and Supplier Guarantee, Bank Borrowings [Member] Guaranteed Obligations, Short-Term [Member]		Dec. 31, 2012 Customer and Supplier Guarantee, Bank Borrowings [Member] Guarantee Obligations, Long-Term [Member]		Dec. 31, 2012 Customer and Supplier Guarantee, Leases on Equipment and Facilities [Member] Y		Dec. 31, 2012 Customer and Supplier Guarantee, Leases on Equipment and Facilities [Member] Guaranteed Obligations, Short-Term [Member]		Dec. 31, 2012 Customer and Supplier Guarantee, Leases on Equipment and Facilities [Member] Guarantee Obligations, Long-Term [Member]		Dec. 31, 2012 Equity Affiliates Guarantee, Bank Borrowings [Member] Y		Dec. 31, 2012 Equity Affiliates Guarantee, Bank Borrowings [Member] Guaranteed Obligations, Short-Term [Member]		Dec. 31, 2012 Equity Affiliates Guarantee, Bank Borrowings [Member] Guarantee Obligations, Long-Term [Member]		Dec. 31, 2012 Financial Guarantee [Member]	Dec. 31, 2012 Financial Guarantee [Member] Guaranteed Obligations, Short-Term [Member]	Dec. 31, 2012 Financial Guarantee [Member] Guarantee Obligations, Long-Term [Member]	Dec. 31, 2012 Customer and Supplier Guarantee [Member]	Dec. 31, 2012 Customer and Supplier Guarantee [Member] Performance Coatings [Member]
Guarantor Obligations [Line Items]
Indemnifications, carrying amount	$ 31	$ 105
Guarantee obligations			$ 348	[1]	$ 284	[1]	$ 64	[1]	$ 2	[1]	$ 0	[1]	$ 2	[1]	$ 185	[2]	$ 185	[2]	$ 0	[2]	$ 535	$ 469	$ 66	$ 350	$ 14
Collateral assets and personal guarantees percentage																								50.00%
Guaranteed obligations maximum term			5	[1]					4	[1]					1	[2]

[1] Existing guarantees for customers and suppliers arose as part of contractual agreements. As of December 31, 2012, approximately $14 of these guarantees relate to customers of the Performance Coatings business.

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