Financing Receivables (Details 7) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Past Due Financing Receivable
Total Past Due (> 90 days)	$ 58	$ 65
Current	19,334	19,560
Total Financing Receivables	19,393	19,625
Recorded Investment > 90 Days and Accruing	48	31
Lease receivables
Past Due Financing Receivable
Total Past Due (> 90 days)	26	22
Current	8,560	8,523
Total Financing Receivables	8,586	8,545
Recorded Investment > 90 Days and Accruing	20	10
Lease receivables | Major Markets
Past Due Financing Receivable
Total Past Due (> 90 days)	15	10
Current	6,528	6,552
Total Financing Receivables	6,543	6,562
Recorded Investment > 90 Days and Accruing	12	5
Lease receivables | Growth Markets
Past Due Financing Receivable
Total Past Due (> 90 days)	12	13
Current	2,031	1,970
Total Financing Receivables	2,043	1,983
Recorded Investment > 90 Days and Accruing	7	5
Client loan receivables
Past Due Financing Receivable
Total Past Due (> 90 days)	32	43
Current	10,775	11,037
Total Financing Receivables	10,807	11,080
Recorded Investment > 90 Days and Accruing	28	21
Client loan receivables | Major Markets
Past Due Financing Receivable
Total Past Due (> 90 days)	17	11
Current	8,700	9,076
Total Financing Receivables	8,717	9,087
Recorded Investment > 90 Days and Accruing	14	4
Client loan receivables | Growth Markets
Past Due Financing Receivable
Total Past Due (> 90 days)	15	32
Current	2,075	1,961
Total Financing Receivables	2,090	1,993
Recorded Investment > 90 Days and Accruing	14	17
Major Markets
Past Due Financing Receivable
Total Financing Receivables	15,260	15,650
Growth Markets
Past Due Financing Receivable
Total Financing Receivables	$ 4,133	$ 3,975