BUSINESS SEGMENT INFORMATION

3 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

BUSINESS SEGMENT INFORMATION

BUSINESS SEGMENT INFORMATION

The Company consists of two reportable insurance business segments: Aflac Japan and Aflac U.S., both of which sell supplemental health and life insurance. In addition, operating business units that are not individually reportable and business activities, including reinsurance retrocession activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other.

The Company does not allocate corporate overhead expenses to business segments. Consistent with U.S. GAAP accounting guidance for segment reporting, the Company evaluates and manages its business segments using a financial performance measure called pretax adjusted earnings. Adjusted earnings are adjusted revenues less benefits and adjusted expenses. The adjustments to both revenues and expenses account for certain items that cannot be predicted or that are outside management’s control. Adjusted revenues are U.S. GAAP total revenues excluding net investment gains and losses, except for amortized hedge costs/income related to foreign currency exposure management strategies and net interest cash flows from derivatives associated with certain investment strategies. Adjusted expenses are U.S. GAAP total acquisition and operating expenses including the impact of interest cash flows from derivatives associated with notes payable but excluding any nonrecurring or other items not associated with the normal course of the Company’s insurance operations and that do not reflect Aflac’s underlying business performance. The Company excludes income taxes related to operations to arrive at pretax adjusted earnings. Information regarding operations by reportable segment and Corporate and other, follows:

	Three Months Ended March 31,
(In millions)	2021		2020
Revenues:
Aflac Japan:
Net earned premiums	$	3,123	$	3,150
Adjusted net investment income (1),(2)	705		642
Other income	13		11
Total adjusted revenue Aflac Japan	3,841		3,803
Aflac U.S.:
Net earned premiums	1,422		1,483
Adjusted net investment income	176		177
Other income	30		27
Total adjusted revenue Aflac U.S.	1,628		1,687
Corporate and other (3)	83		104
Total adjusted revenues	5,552		5,594
Net investment gains (losses) (1),(2),(3)	317		(432)
Total revenues	$	5,869	$	5,162

(1) Amortized hedge costs of $19 and $55 for the three-month periods ended March 31, 2021, and 2020, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

(2) Net interest cash flows from derivatives associated with certain investment strategies of $(8) and $(6) for the three-month periods ended March 31, 2021 and 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income when analyzing operations.

(3) Amortized hedge income of $17 and $29 for the three-month periods ended March 31, 2021, and 2020, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase to net investment income when analyzing operations.

	Three Months Ended March 31,
(In millions)	2021		2020
Pretax earnings:
Aflac Japan (1),(2)	$	887	$	855
Aflac U.S.	445		326
Corporate and other (3),(4)	(26)		2
Pretax adjusted earnings (5)	1,306		1,183
Net investment gains (losses) (1),(2),(3),(4)	304		(448)
Other income (loss)	(7)		(15)
Total earnings before income taxes	$	1,603	$	720
Income taxes applicable to pretax adjusted earnings	$	248	$	301
Effect of foreign currency translation on after-tax adjusted earnings	13		9

(1) Amortized hedge costs of $19 and $55 for the three-month periods ended March 31, 2021, and 2020, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

(2) Net interest cash flows from derivatives associated with certain investment strategies of $(8) and $(6) for the three-month periods ended March 31, 2021 and 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income when analyzing operations.

(3) Amortized hedge income of $17 and $29 for the three-month periods ended March 31, 2021, and 2020, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase in net investment income when analyzing operations.

(4) A gain of $14 and $16 for the three-month periods ended March 31, 2021, and 2020, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable has been reclassified from net investment gains (losses) and included in adjusted earnings when analyzing operations.

(5) Includes $45 and $33 for the three-month periods ended March 31, 2021, and 2020, respectively, of interest expense on debt.

Assets were as follows:

(In millions)	March 31, 2021			December 31, 2020
Assets:
Aflac Japan		$	130,611		$	137,271
Aflac U.S.		22,278			22,864
Corporate and other		5,268			4,951
Total assets		$	158,157		$	165,086