Segment Reporting Segment Reporting (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended				9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Financial Services [Member]	Jun. 30, 2012 Financial Services [Member]	Sep. 30, 2011 Financial Services [Member]	Sep. 30, 2012 Smokeable Products [Member]	Sep. 30, 2012 Smokeable Products [Member]	Sep. 30, 2011 Smokeable Products [Member]
Segment Reporting Information [Line Items]
Leveraged Lease (Benefit) Charge	$ (68)	$ 627	$ (68)	$ 627
Decrease in Financial Services Net Revenues and OCI	7	490	7	490
Recoveries from sale of bankruptcy claims and aircraft					33
Decrease to Allowance			10	35		10	35
Pretax Tobacco and Health charges								3	4	36
Commitments and Contingencies Accrued Interest										$ 5