Consolidated Statements Of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities
Net income	$ 3,799	$ 2,690
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized (gains) losses on financial instruments	6	(89)
Depreciation and amortization	556	586
Deferred income taxes	60	79
Share-based compensation	134	140
Changes in operating assets and liabilities:
Receivables, net	(313)	(589)
Other invested assets	24	(28)
Other assets	(486)	(258)
Policy liabilities	1,024	1,251
Unearned income	(110)	(2)
Accounts Payable and Other Operating Liabilities	1,868	(383)
Income taxes	1,313	(286)
Other, net	150	(44)
Net cash provided by operating activities	8,025	3,067
Investing activities
Payments to acquire investments	(11,135)	(11,113)
Proceeds from sale of investments	4,724	8,835
Maturities, calls and redemptions from investments	1,836	894
Purchases of subsidiaries, net of cash acquired	(1,906)	0
Purchases of property and equipment	(437)	(455)
Other, net	(800)	22
Net cash used in investing activities	(7,718)	(1,817)
Financing activities
Net (repayments of) proceeds from commercial paper borrowings	(400)	203
Proceeds from long-term borrowings	2,484	0
Repayments of long-term borrowings	(155)	(73)
Proceeds from short-term borrowings	820	4,805
Repayments of short-term borrowings	(1,520)	(4,940)
Repurchase and retirement of common stock	(584)	(752)
Cash dividends	(482)	(412)
Proceeds from issuance of common stock under employee stock plans	92	100
Taxes paid through withholding of common stock under employee stock plans	(111)	(80)
Other, net	640	43
Net cash provided by (used in) financing activities	784	(1,106)
Change in cash and cash equivalents	1,091	144
Cash and cash equivalents at beginning of period	4,937	3,934
Cash and cash equivalents at end of period	$ 6,028	$ 4,078