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Cash Flow Information (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		1 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Apr. 30, 2011 Pittsburgh Glass Works LLC [Member]
Schedule of Cash Flow, Supplemental [Line Items]
Cash payments for interest	$ 178	$ 177
Cash payments for income taxes	367	276
Total receipts from Pittsburgh Glass Works ("PGW")			168
Proceeds from notes receivable	0	90	90
Return of capital, equity affiliate			$ 78

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

The cash inflow from the collection of money previously advanced to an entity that is related to it but not strictly controlled.

The cash inflow associated with principal collections from a borrowing supported by a written promise to pay an obligation.