Impact on Line Items of Consolidated Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2010
Balance Sheet Items:
Finance leases	$ 1,610	$ 1,727
Total receivables, gross of allowance	2,186	2,348
Total receivables, net of allowance	2,138	2,295
Total assets	4,551	5,566
Accounts with Boeing	94	76
Deferred income taxes	1,155	1,232
Total liabilities	4,038	5,029
Retained earnings		8
Shareholder's equity	513	537	548	687
Total liabilities and shareholder's equity	4,551	5,566
Scenario, Previously Reported [Member]
Balance Sheet Items:
Finance leases		1,739
Total receivables, gross of allowance		2,360
Total receivables, net of allowance		2,307
Total assets		5,578
Accounts with Boeing		77
Deferred income taxes		1,236
Total liabilities		5,034
Retained earnings		15
Shareholder's equity		544
Total liabilities and shareholder's equity		5,578
Restatement Adjustment [Member]
Balance Sheet Items:
Finance leases		1,727
Total receivables, gross of allowance		2,348
Total receivables, net of allowance		2,295
Total assets		5,566
Accounts with Boeing		76
Deferred income taxes		1,232
Total liabilities		5,029
Retained earnings		8
Shareholder's equity		537
Total liabilities and shareholder's equity		$ 5,566