CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net income	$ 354	$ 274
Other comprehensive income (loss)
Change in unrealized holding gains on investments, net of tax expense of $41 and $4, respectively	77	8
Reclassification adjustment for gross gains included in net income, net of tax expense of $2 and $7, respectively	(5)	(12)
Other comprehensive income (loss)	72	(4)
Unrealized gains transferred to noncontrolling interest on sale of life affiliate, net of tax expense of $0 and $4, respectively		9
Comprehensive income	426	279
Indemnity
Other comprehensive income (loss)
Other comprehensive income (loss)	2
Total comprehensive income - Indemnity	38	43
Exchange
Net income	318
Other comprehensive income (loss)
Other comprehensive income (loss)	70
Less: Comprehensive income attributable to noncontrolling interest in consolidated entity - Exchange	$ 388	$ 236